[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_18":812,"_813":-7,"_814":815,"_816":-5},"routes/companies.$slug",{"_9":10,"_11":12},"company",{"_65":89,"_71":809,"_67":90,"_69":91,"_16":810,"_22":811},"search",["SingleFetchClassInstance",13],{"_14":15,"_16":17,"_18":19,"_20":21,"_22":23,"_24":23,"_25":26,"_27":28,"_29":30,"_31":32,"_33":-5,"_34":35},"title","","description",{"_807":-5,"_808":-5},"meta",{"_14":15,"_16":15},"parameters",{},"url","https://jobsfordevelopers.com/companies/upstreamsystems-com","canonical","index",true,"order",{"_805":65,"_806":65},"items",[44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63],"pagination",{"_36":37,"_38":39,"_40":41,"_42":43},"filter","suggestions",[],"total",31,"perPage",20,"currentPage",1,"lastPage",2,["SingleFetchClassInstance",761],["SingleFetchClassInstance",721],["SingleFetchClassInstance",693],["SingleFetchClassInstance",674],["SingleFetchClassInstance",633],["SingleFetchClassInstance",594],["SingleFetchClassInstance",558],["SingleFetchClassInstance",535],["SingleFetchClassInstance",504],["SingleFetchClassInstance",487],["SingleFetchClassInstance",430],["SingleFetchClassInstance",411],["SingleFetchClassInstance",397],["SingleFetchClassInstance",378],["SingleFetchClassInstance",353],["SingleFetchClassInstance",309],["SingleFetchClassInstance",261],["SingleFetchClassInstance",167],["SingleFetchClassInstance",115],["SingleFetchClassInstance",64],{"_65":66,"_67":68,"_69":70,"_71":72,"_16":73,"_74":75,"_76":77,"_78":79,"_80":81,"_82":83,"_84":85,"_86":87,"_9":88},"id","87cf4251-a6ea-42f5-abfd-fbe3b58da9d8","name","IT Operations Engineer","slug","it-operations-engineer-at-upstream-oct-25-2023-911997","type","full_time","

The company

We are a leader in mobile technology, providing innovative solutions to 1.2 billion consumers. In an ever-increasing digital world we help businesses grow their digital reach & toolkits to optimize user experience, increase engagement, attract new customers and boost their revenues.

Think of performance marketing but on steroids as our top-notch marketeers and engineers build digital journeys through an omnichannel marketing approach like no other. Currently we work with the biggest names in Telco, Insurance, Education, FMCGs and Retail in over 45 countries in Latin America, Africa, the Middle East and South-East Asia.

The role

As an ITOps Engineer you will join a team of talented professionals with international experience, delivering a world-class technical infrastructure to support Upstream’s growing business. More specifically, you will take on key end-to-end responsibility for the technical delivery of assigned projects. You will become an expert in Upstream’s applications and how they are used in order to deliver services and generate revenues. Additionally, you will maintain overall responsibility for all operational aspects of a project from pre-launch through launch and ongoing support until the end of the project’s revenue lifecycle. You will drive the turnover process from development teams within Upstream and other parties, ensuring that proper infrastructure is put in place and proper procedures, documentation, and training are prepared.

Your main accountabilities will be:

Technical delivery of assigned projects
Setup, configuration and support of various applications components and integrations required for each project
Be responsible for all operational aspects of a project
Drive the turnover process from development teams and other parties
Ensure proper procedures, documentation and training are prepared
Identify, document and request operational requirements for tools and other projects

Requirements

University degree in Engineering / Computer Science or similar discipline
3 years of professional experience in Information Technology
Hands-on experience with Unix systems
Very strong experience with SQL queries, data-mining, reporting and data-handling techniques
Experience with shell, Python, or other scripting on Unix systems
Knowledge of best practices for management of systems, custom applications, and configuration
Excellent written and verbal skills in English with strong organizational abilities

Will be considered as a plus:

Diverse background, including both software development and hands-on system, application, and/or database administration
Experience in Telecom or Application Service Provider environment
Understanding of commonly used telecommunications protocols
Experience with at least one of the following protocols: SMPP, HTTP, SOAP, DIAMETER
Hands-on experience with SMS Gateways/ Billing gateways/ SMSCs or other mobile operator infrastructure components

*Please submit your CV only in English

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile and highly motivated team in a competitive and fast-paced environment.

Follow us on LinkedIn and stay updated on our latest news. Upstream is an equal opportunity employer. The Company does not discriminate on the basis of race, colour, creed, pregnancy, religion, gender, national origin, age, disability, marital, or any other legally protected status. The Company also makes reasonable accommodations for disabled employees. Finally, the Company prohibits the harassment of any individual based on their protected status. This policy applies to all areas of personnel actions including recruitment, hiring, training, promotion, compensation, benefits, transfer, and social and recreational programs.

","salaryMinimum",105000,"salaryMaximum",260000,"salaryCurrency","USD","salarySource","estimate","createdAt",["D",1698192000000],"closedAt",["D",1711796215529],"tags",[92,93,94],{"_65":89,"_67":90,"_69":91},"e4d7de11-9903-4c50-b622-be3b68a42d7e","Upstream","upstreamsystems-com",{"_95":110,"_97":111},{"_95":104,"_97":105},{"_95":96,"_97":98},"tag",{"_65":99,"_71":100,"_67":101,"_69":102,"_97":103},"priority",0,"6a320c49-d8a6-48a0-964e-8d15175eaf00","location","Rio de Janeiro, Brazil","rio-de-janeiro-brazil",4000,{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},2600,"354bfecf-0ce7-40a2-8968-e62ece003ed6","skill","SQL","sql",{"_65":112,"_71":107,"_67":113,"_69":114,"_97":111},2000,"25cdd626-f8e7-4522-84b2-72f8943842f1","Python","python",{"_65":116,"_67":117,"_69":118,"_71":72,"_16":119,"_74":120,"_76":121,"_78":79,"_80":81,"_82":122,"_84":123,"_86":124,"_9":125},"31ae3dbf-9ea2-4588-a64a-d60399e346c9","Senior Software Engineer, Big Data Java / Scala","senior-software-engineer-big-data-java-scala-at-upstream-nov-7-2023-b34a5a","

Our company

The role

Due to our global expansion we are looking for an enthusiastic Senior Big Data Developer to join our Software Development team in Athens, Greece.

Our HQ offices are based in Gerakas and we have adopted a hybrid work mode.

As a Senior Software Engineer you will be part of a very competent team that works on mission – critical applications throughout the entire development lifecycle, from concept and design, to developing and delivering to production. You will use a modern tech-stack for distributed data processing, such as Apache Spark, Hadoop, Kafka, Spring Boot, Java/Scala, and Data Lake to build the Data and Reporting layer of our products, processing hundreds of millions of messages per day. You will work in a cross-functional team with QA Automation and DevOps Engineers. You will collaborate with UI, Back-end teams and Product Managers to produce our world-class Marketing Technology Platform.

We use the industry best practices and prioritize providing an exceptional developer experience, which means that you will have the tools and support you need to thrive in your role. You'll have the opportunity to work with top-tier private cloud infrastructure. We believe in fostering an environment that allows you to reach your full potential and deliver high-quality work with confidence.

Your main responsibilities will be:

Work on big data platforms including data ingestions and data warehouse development
Programming in distributed messaging and data processing systems: Kafka, Spark
Design, develop, and support new and existing ETL processes employing industry standards and best practices to enhance loading of data from and into different source/ target systems
Write well designed, maintainable, testable, efficient software modules
Ensure designs are in compliance with specifications and that specifications cover all needed aspects of the implementation
Provide support for production systems
Support continuous improvement by investigating and presenting alternatives and new technologies

Requirements

The skills we require:

BSc/MSc in Computer Science, Engineering or equivalent
4+ years of full time professional experience
Experience programming in Java or Scala or other functional programming languages
Excellent knowledge of SQL
Familiarity with build tools such as Maven or Gradle
Proficient understanding of Git and its workflows

The skills we prefer:

Experience with a distributed data processing platform such as Spark, Hadoop
Experience with a distributed messaging system such as Kafka
Experience working with Data Warehouses

You will be an excellent fit for our team if you are:

Strong team player with good communication skills
Eager to work with leading-edge technologies
Analytical thinker with attention to detail
Reliable and dedicated professional with clear thinking and strong attention to detail
Able to multitask and thrive in a dynamic environment as well as balance and prioritize activities to ensure critical items are addressed

Benefits

",110000,270000,["D",1699315200000],["D",1711796215529],[126,127,128,129,130,131,132,133],{"_65":89,"_67":90,"_69":91},{"_95":160,"_97":161},{"_95":156,"_97":111},{"_95":155,"_97":105},{"_95":151,"_97":105},{"_95":147,"_97":98},{"_95":143,"_97":98},{"_95":139,"_97":98},{"_95":134,"_97":135},{"_65":136,"_71":107,"_67":137,"_69":138,"_97":135},2100,"ffc38cec-f70f-4c10-bc3d-5b812042d5f0","Spring Boot","spring-boot",{"_65":140,"_71":107,"_67":141,"_69":142,"_97":111},"ff773669-9e99-434c-b891-e3a49967d479","Java","java",{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},"da9c73e4-aad1-4396-b300-0dd5558f19ea","Gerakas, Greece","gerakas-greece",{"_65":148,"_71":100,"_67":149,"_69":150,"_97":98},"d8b0d9a7-9b6e-4943-a5d1-8273052b854d","Remote","remote",{"_65":152,"_71":107,"_67":153,"_69":154,"_97":105},"c2f5b77c-35f3-4a9a-a10e-8c2564ccee68","Kafka","kafka",{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":157,"_71":107,"_67":158,"_69":159,"_97":111},"242b5f75-948b-4094-b927-ab35d2143af8","Scala","scala",{"_65":162,"_71":163,"_67":164,"_69":165,"_97":166},6000,"23e976bc-f7cb-49f4-9a44-874330740fab","position","Senior Engineer","senior-engineer",1000,{"_65":168,"_67":169,"_69":170,"_71":72,"_16":171,"_74":172,"_76":77,"_78":79,"_80":81,"_82":173,"_84":174,"_86":175,"_9":176},"16f8fc4d-56a3-43c3-9d0b-de69ca131543","Software Engineer, Full-stack JavaScript","software-engineer-full-stack-javascript-at-upstream-nov-8-2023-45f2e3","

The company

The role

In the context of our growing business and ongoing project needs, we are looking for an enthusiastic Software Engineer to join our Software Development team in Athens, Greece.

Our HQ offices are based in Gerakas and we have adopted a hybrid work mode.

As a Software Engineer you will be part of a very competent team that works on mission – critical applications throughout the entire development lifecycle, from concept and design, to developing and delivering to production. You will use a modern JavaScript tech-stack, such as React/Next.js, Express.js, to build both the public facing and internal application modules of our products. You will work in a cross-functional team with QA Automation and DevOps Engineers, who are integral to our CI/CD process. You will collaborate with UI/UX Designers and Product Managers to produce our world-class Marketing Technology Platform.

We use the industry best practices and prioritize providing an exceptional developer experience, which means that you will have the tools and support you need to thrive in your role. You'll have the opportunity to work with top-tier private cloud infrastructure like Kubernetes clusters and dedicated \"performance labs\" to ensure that we meet our Platform's performance and scalability needs. We believe in fostering an environment that allows you to reach your full potential and deliver high-quality work with confidence.

Your main responsibilities will be to:

Write well designed, testable, efficient software modules.
Translate business specifications, designs and wireframes into high-quality code.
Create reusable components for the frontend component library.
Prepare and produce releases of software modules.
Troubleshoot and support existing products and infrastructure.
Review, test, and debug code.
Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review.
Support and coach junior developers in writing clean, maintainable and efficient code.

Requirements

Knowledge, Skills and Experience

Computer Science, Engineering or equivalent degree.
1-2 years of full time professional Full Stack / Web Development experience.
Hands-on experience in designing and developing full stack applications using JavaScript, Typescript.
Hands-on experience in a popular library/framework such as React, Next.js, Express.
Experience with HTML, CSS and responsive design.
Experience with designing and consuming HTTP APIs.
Familiarity with SQL and NoSQL databases and caches (e.g. MongoDB, PostgreSQL, Elasticsearch, Redis, Memcached).

Nice to have skills

CI/CD tools and processes.
Docker, Kubernetes.
Messaging systems such as Kafka.

You will be an excellent fit for our team if you are:

Strong team player with good communication skills.
Eager to work with leading-edge technologies.
Analytical thinker with attention to detail.
Reliable and dedicated professional.
Able to multitask and thrive in a dynamic environment as well as balance and prioritize activities to ensure critical items are addressed.

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

",100000,["D",1699401600000],["D",1711796215529],[177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195],{"_65":89,"_67":90,"_69":91},{"_95":257,"_97":105},{"_95":253,"_97":105},{"_95":249,"_97":105},{"_95":248,"_97":105},{"_95":244,"_97":105},{"_95":240,"_97":105},{"_95":236,"_97":135},{"_95":232,"_97":105},{"_95":228,"_97":105},{"_95":224,"_97":105},{"_95":220,"_97":111},{"_95":216,"_97":105},{"_95":212,"_97":135},{"_95":211,"_97":105},{"_95":207,"_97":105},{"_95":203,"_97":111},{"_95":202,"_97":98},{"_95":201,"_97":98},{"_95":196,"_97":197},{"_65":198,"_71":107,"_67":199,"_69":200,"_97":197},2300,"dc2e03df-dd9f-4aa4-a4eb-55ce409c3f9e","Express","express",{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":148,"_71":100,"_67":149,"_69":150,"_97":98},{"_65":204,"_71":107,"_67":205,"_69":206,"_97":111},"cf0cf95c-3b8f-4f03-83f8-2dcab3d75334","Javascript","javascript",{"_65":208,"_71":107,"_67":209,"_69":210,"_97":105},"cb161441-ae12-4e60-816d-b4ad5ad9bf11","Kubernetes","kubernetes",{"_65":152,"_71":107,"_67":153,"_69":154,"_97":105},{"_65":213,"_71":107,"_67":214,"_69":215,"_97":135},"ba342ba8-3375-4688-9cc2-f16515289190","React","react",{"_65":217,"_71":107,"_67":218,"_69":219,"_97":105},"a7bf00ef-86ca-4df4-9dd9-1f8c6d620d50","CSS","css",{"_65":221,"_71":107,"_67":222,"_69":223,"_97":111},"9674b52b-dd38-4f3e-8721-9f2a5ede99a4","Typescript","typescript",{"_65":225,"_71":107,"_67":226,"_69":227,"_97":105},"8c32e88d-326b-40cd-b72b-f5e95523f7ea","Elasticsearch","elasticsearch",{"_65":229,"_71":107,"_67":230,"_69":231,"_97":105},"81b1ece4-0cbb-4340-97a9-0842492b2c6f","MongoDB","mongodb",{"_65":233,"_71":107,"_67":234,"_69":235,"_97":105},"67cdf69a-7fed-4cb9-a421-32627045f695","Docker","docker",{"_65":237,"_71":107,"_67":238,"_69":239,"_97":135},"5ef151d0-defe-4848-a481-080367e3db82","Next.js","next-js",{"_65":241,"_71":107,"_67":242,"_69":243,"_97":105},"4a897956-c46d-4444-b13f-31c447b10859","CI/CD","ci-cd",{"_65":245,"_71":107,"_67":246,"_69":247,"_97":105},"42712b6d-b0b8-448d-a0aa-2db4ae7870ca","HTML","html",{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":250,"_71":107,"_67":251,"_69":252,"_97":105},"244b319f-3bdf-4cab-bfd2-85722436f1c3","PostgreSQL","postgresql",{"_65":254,"_71":107,"_67":255,"_69":256,"_97":105},"1548d6e8-7fa1-457b-8bfc-41310a9954ac","Redis","redis",{"_65":258,"_71":107,"_67":259,"_69":260,"_97":105},"12fd9f8d-5376-4440-ba58-bab8ca6e631a","NoSQL","nosql",{"_65":262,"_67":263,"_69":264,"_71":72,"_16":265,"_74":172,"_76":266,"_78":79,"_80":81,"_82":267,"_84":268,"_86":269,"_9":270},"7d7f6b16-ef47-4d0c-b7a2-289e1951c946","Senior Software Engineer, Full-stack JavaScript","senior-software-engineer-full-stack-javascript-at-upstream-oct-12-2023-f6cfea","

The company

The role

In the context of our growing business and ongoing project needs, we are looking for an enthusiastic Senior Software Engineer to join our Software Development team in Athens, Greece.

Our HQ offices are based in Gerakas and we have adopted a hybrid work mode.

As a Senior Software Engineer you will be part of a very competent team that works on mission – critical applications throughout the entire development lifecycle, from concept and design, to developing and delivering to production. You will use a modern JavaScript tech-stack, such as React/Next.js, Express.js, to build both the public facing and internal application modules of our products. You will work in a cross-functional team with QA Automation and DevOps Engineers, who are integral to our CI/CD process. You will collaborate with UI/UX Designers and Product Managers to produce our world-class Marketing Technology Platform.

We use the industry best practices and prioritize providing an exceptional developer experience, which means that you will have the tools and support you need to thrive in your role. You'll have the opportunity to work with top-tier private cloud infrastructure like Kubernetes clusters and dedicated \"performance labs\" to ensure that we meet our Platform's performance and scalability needs. We believe in fostering an environment that allows you to reach your full potential and deliver high-quality work with confidence.

Your main responsibilities will be to:

Write well designed, testable, efficient software modules.
Translate business specifications, designs and wireframes into high-quality code.
Create reusable components for the frontend component library.
Prepare and produce releases of software modules.
Troubleshoot and support existing products and infrastructure.
Review, test, and debug code.
Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review.
Support and coach junior developers in writing clean, maintainable and efficient code.

Requirements

Knowledge, Skills and Experience

Computer Science, Engineering or equivalent degree.
4+ years of full time professional Full Stack / Web Development experience.
Hands-on experience in designing and developing full stack applications using JavaScript, Typescript.
Hands-on experience in a popular library/framework such as React, Next.js, Express.
Experience with HTML, CSS and responsive design.
Experience with designing and consuming HTTP APIs.
SQL and NoSQL databases and caches (e.g. MongoDB, PostgreSQL, Elasticsearch, Redis, Memcached).
Messaging systems such as Kafka.
CI/CD tools and processes.

You will be an excellent fit for our team if you are:

Strong team player with good communication skills.
Eager to work with leading-edge technologies.
Analytical thinker with attention to detail.
Reliable and dedicated professional with clear thinking and strong attention to detail.
Able to multitask and thrive in a dynamic environment as well as balance and prioritize activities to ensure critical items are addressed.

Benefits

We offer a competitive base salary and benefits, including private health insurance plan, transportation fees, meal vouchers, and other perks. We invest in continuous training (e.g. conference tickets, access to the top online training platforms, internal training sessions) and mentoring of our engineers. The real excitement comes from working closely with a dynamic, smart, agile and highly motivated team in a competitive and fast paced environment.

",255000,["D",1697068800000],["D",1712367171316],[271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289],{"_65":89,"_67":90,"_69":91},{"_95":308,"_97":105},{"_95":307,"_97":105},{"_95":306,"_97":161},{"_95":305,"_97":105},{"_95":304,"_97":105},{"_95":303,"_97":105},{"_95":302,"_97":105},{"_95":301,"_97":135},{"_95":300,"_97":105},{"_95":299,"_97":105},{"_95":298,"_97":111},{"_95":297,"_97":105},{"_95":296,"_97":135},{"_95":295,"_97":105},{"_95":294,"_97":105},{"_95":293,"_97":111},{"_95":292,"_97":98},{"_95":291,"_97":98},{"_95":290,"_97":197},{"_65":198,"_71":107,"_67":199,"_69":200,"_97":197},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":148,"_71":100,"_67":149,"_69":150,"_97":98},{"_65":204,"_71":107,"_67":205,"_69":206,"_97":111},{"_65":208,"_71":107,"_67":209,"_69":210,"_97":105},{"_65":152,"_71":107,"_67":153,"_69":154,"_97":105},{"_65":213,"_71":107,"_67":214,"_69":215,"_97":135},{"_65":217,"_71":107,"_67":218,"_69":219,"_97":105},{"_65":221,"_71":107,"_67":222,"_69":223,"_97":111},{"_65":225,"_71":107,"_67":226,"_69":227,"_97":105},{"_65":229,"_71":107,"_67":230,"_69":231,"_97":105},{"_65":237,"_71":107,"_67":238,"_69":239,"_97":135},{"_65":241,"_71":107,"_67":242,"_69":243,"_97":105},{"_65":245,"_71":107,"_67":246,"_69":247,"_97":105},{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":250,"_71":107,"_67":251,"_69":252,"_97":105},{"_65":162,"_71":163,"_67":164,"_69":165,"_97":166},{"_65":254,"_71":107,"_67":255,"_69":256,"_97":105},{"_65":258,"_71":107,"_67":259,"_69":260,"_97":105},{"_65":310,"_67":169,"_69":311,"_71":72,"_16":312,"_74":172,"_76":266,"_78":79,"_80":81,"_82":313,"_84":314,"_86":315,"_9":316},"34a688d6-74b2-4bfa-97a6-505466566d3b","software-engineer-full-stack-javascript-at-upstream-jan-11-2024-eb3114","

The company

The Role and The Team

You will be part of an exceptional team of highly motivated engineers which supports our e-commerce platform. You'll have ample opportunities for personal and professional growth via training, insightful code reviews and pair programming.

By joining this team, you'll make an immediate impact by contributing to the creation of new features for our e-commerce platform whilst at the same time have an impact on the redesign of our app. In addition to your immediate team, you'll collaborate closely with Project Managers, Devops and QA Engineers, Architects as well as our customer success team.

Our HQ offices are based in Gerakas and we have adopted a hybrid work mode.

Requirements

Knowledge, Skills and Experience

Computer Science, Engineering or equivalent degree.
1-2 years of full time professional Full Stack / Web Development experience.
Hands-on experience in designing and developing full stack applications using JavaScript, Typescript.
Hands-on experience in a popular library/framework such as React, Next.js, Express.
Experience with HTML, CSS and responsive design.
Experience with designing and consuming HTTP APIs.
Testing mindset.
Familiarity with SQL and NoSQL databases and caches (e.g. MongoDB, PostgreSQL, Elasticsearch, Redis, Memcached).
CI/CD tools and Docker, Kubernetes is a plus.

You will be an excellent fit for our team if you are:

Strong team player with good communication skills.
Eager to work with leading-edge technologies.
Analytical thinker with attention to detail.
Reliable and dedicated professional.
A passion for learning and a growth mindset are qualities we are looking for.

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

",["D",1704931200000],["D",1712367171316],[317,318,319,320,321,322,323,324,325,326,327,328,329,330,331,332,333,334],{"_65":89,"_67":90,"_69":91},{"_95":352,"_97":98},{"_95":351,"_97":98},{"_95":350,"_97":105},{"_95":349,"_97":105},{"_95":348,"_97":105},{"_95":347,"_97":105},{"_95":346,"_97":105},{"_95":345,"_97":111},{"_95":344,"_97":105},{"_95":343,"_97":105},{"_95":342,"_97":105},{"_95":341,"_97":105},{"_95":340,"_97":135},{"_95":339,"_97":105},{"_95":338,"_97":111},{"_95":337,"_97":135},{"_95":336,"_97":197},{"_95":335,"_97":105},{"_65":233,"_71":107,"_67":234,"_69":235,"_97":105},{"_65":198,"_71":107,"_67":199,"_69":200,"_97":197},{"_65":213,"_71":107,"_67":214,"_69":215,"_97":135},{"_65":221,"_71":107,"_67":222,"_69":223,"_97":111},{"_65":229,"_71":107,"_67":230,"_69":231,"_97":105},{"_65":237,"_71":107,"_67":238,"_69":239,"_97":135},{"_65":245,"_71":107,"_67":246,"_69":247,"_97":105},{"_65":254,"_71":107,"_67":255,"_69":256,"_97":105},{"_65":225,"_71":107,"_67":226,"_69":227,"_97":105},{"_65":208,"_71":107,"_67":209,"_69":210,"_97":105},{"_65":204,"_71":107,"_67":205,"_69":206,"_97":111},{"_65":217,"_71":107,"_67":218,"_69":219,"_97":105},{"_65":241,"_71":107,"_67":242,"_69":243,"_97":105},{"_65":250,"_71":107,"_67":251,"_69":252,"_97":105},{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":258,"_71":107,"_67":259,"_69":260,"_97":105},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":148,"_71":100,"_67":149,"_69":150,"_97":98},{"_65":354,"_67":355,"_69":356,"_71":72,"_16":357,"_74":172,"_76":358,"_78":79,"_80":81,"_82":359,"_84":360,"_86":361,"_9":362},"f4aa3cc8-21cc-40c2-b31c-f18fb758054a","Senior Data Analyst","senior-data-analyst-at-upstream-feb-19-2024-2b166d","

Who we are

Think of performance marketing but on steroids as our top-notch marketers and engineers build digital journeys through an omnichannel marketing approach like no other. Currently, we work with the biggest names in Telco, Insurance, Education, FMCGs, and Retail in over 45 countries in Latin America, Africa, the Middle East, and South-East Asia.

The role

As a Senior Data Analyst, you will be part of the Business Intelligence team within the Engineering department, providing analytical support that will significantly impact the decision making capability of other roles within the company. You will apply your skills in processing and analyzing big volumes of data to address business questions and maximize campaign effectiveness.

A suitable candidate should be passionate about solving problems by using data and applying analytical thinking, and similarly enjoy designing and building efficient data management solutions.

Main Responsibilities

● Work closely with the commercial teams to design reporting solutions, as well as design and analyze performance optimization experiments.

● Cooperate with data engineering teams, to assist in the design of our Business Intelligence infrastructure and Data Warehouse solution.

● Build and maintain data transformations/ pipelines, as well as online reports / dashboards.

● Produce ad-hoc analyses, using raw data sources and reporting tools.

Requirements

Knowledge, Skills and Experience

● Degree in Natural Sciences, Technology, Engineering or other quantitative discipline.

● 4+ years of relevant work experience.

● Hands-on experience in SQL.

● Scripting, preferably in Python

● Experience in BI or ETL tools (e.g. Tableau, Pentaho, Power BI).

● Experience with Data Warehouse solutions.

Nice to have skills

● Experience working with semi-structured data

● Experience with big data analytics tools, such as Apache Spark or Impala

● Data Visualization skills

● Machine Learning

You will be an excellent fit for our team if you are:

● Strong team player with good communication skills.

● Eager to work with leading-edge technologies.

● Analytical thinker with attention to detail.

● Reliable and dedicated professional with clear thinking and strong attention to detail.

● Able to multitask and thrive in a dynamic environment as well as balance and prioritize activities to ensure critical items are addressed.

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

Follow us on LinkedIn and stay updated on our latest news. Upstream is an equal-opportunity employer.
The Company does not discriminate on the basis of race, color, creed, pregnancy, religion, gender, national origin, age, disability, marital, or any other legally protected status. The Company also makes reasonable accommodations for disabled employees.
Finally, the Company prohibits the harassment of any individual based on their protected status. This policy applies to all areas of personnel actions including recruitment, hiring, training, promotion, compensation, benefits, transfer,and social and recreational programs

",250000,["D",1708300800000],["D",1714181667477],[363,364,365,366,367,368],{"_65":89,"_67":90,"_69":91},{"_95":377,"_97":98},{"_95":376,"_97":98},{"_95":375,"_97":105},{"_95":374,"_97":111},{"_95":370,"_97":105},{"_95":369,"_97":161},{"_65":162,"_71":163,"_67":164,"_69":165,"_97":166},{"_65":371,"_71":107,"_67":372,"_69":373,"_97":105},"d7b27205-7566-4c66-8791-b21e3daa05c4","Power BI","power-bi",{"_65":112,"_71":107,"_67":113,"_69":114,"_97":111},{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":148,"_71":100,"_67":149,"_69":150,"_97":98},{"_65":379,"_67":380,"_69":381,"_71":72,"_16":382,"_74":172,"_76":358,"_78":79,"_80":81,"_82":383,"_84":384,"_86":385,"_9":386},"195ab517-7998-4cd6-8b7e-523cafb7b1be","Business Intelligence Engineer","business-intelligence-engineer-at-upstream-feb-13-2024-49bb7f","

Who we are

The role

Our BI team is growing and we are looking for an experienced Business Intelligence Engineer to join us in Athens, Greece. She/he will be responsible for delivering solutions that are crucial for the day-to-day and strategic decision-making of other internal teams.

As a BI Engineer at Upstream, you’ll have the chance to work on a broad range of BI areas and technologies, from analyzing business requirements to data management and ETL, to report building and data visualization. You’ll also have the opportunity to work on different products and interact with internal stakeholders from several regions across the world. You’ll also have the flexibility to make design decisions and propose solutions; innovation and fresh ideas are more than welcome.

Main Responsibilities

Design, build and maintain efficient data pipelines and ETLs on big volumes of data.
Design, build and maintain online reports and dashboards.
Deliver on-demand data and reports.
Work closely with the business users to capture requirements.
Monitor the health and performance of the BI infrastructure and take the required corrective actions.
Continuously try to improve our tools and processes, following high quality and efficiency standards.

Requirements

Degree in Computer Science, Engineering, Natural Sciences or other quantitative field.
2+ years of experience in a similar role.
SQL expertise is a must. A suitable candidate should be comfortable with using complex joins, aggregations and window/analytics functions and follow best practices in terms of query optimization.
Experience in Python or similar scripting language, along with basic concepts of version control (Git).
Experience in at least one BI reporting tool (e.g. Tableau, Power BI, Cognos, etc.) and spreadsheets (Excel, Google Sheets).
Any experience with ETL tools (e.g. SSIS, Informatica, Pentaho DI, etc.) is a plus.
Any experience in handling semi-structured data and data APIs is a plus.
Ability to handle and prioritize tasks with minimum supervision, ensuring smooth delivery.

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

",["D",1707782400000],["D",1715650295950],[387,388,389,390,391],{"_65":89,"_67":90,"_69":91},{"_95":396,"_97":98},{"_95":395,"_97":98},{"_95":394,"_97":111},{"_95":393,"_97":105},{"_95":392,"_97":105},{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":371,"_71":107,"_67":372,"_69":373,"_97":105},{"_65":112,"_71":107,"_67":113,"_69":114,"_97":111},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":148,"_71":100,"_67":149,"_69":150,"_97":98},{"_65":398,"_67":68,"_69":399,"_71":72,"_16":400,"_74":75,"_76":77,"_78":79,"_80":81,"_82":401,"_84":402,"_86":403,"_9":404},"f7ad4dbc-04f0-4b38-823e-8846db5dd336","it-operations-engineer-at-upstream-oct-25-2023-a7d0b1","

The company

The role

Your main accountabilities will be:

Technical delivery of assigned projects
Setup, configuration and support of various applications components and integrations required for each project
Be responsible for all operational aspects of a project
Drive the turnover process from development teams and other parties
Ensure proper procedures, documentation and training are prepared
Identify, document and set operational requirements for tools and other projects

Requirements

University degree in Engineering / Computer Science or similar discipline
3 years of professional experience in Information Technology
Hands-on experience with Unix systems
Experience with shell, Python, or other scripting on Unix systems
Knowledge of best practices for management of systems, custom applications, and configuration
Excellent written and verbal skills in English with strong organizational abilities
Strong experience in network troubleshooting using tools like: wireshark, trace route, netcat etc.
Strong experience with at least one of the following protocols: SMPP, HTTP, SOAP, DIAMETER

Will be considered as a plus:

Diverse background, including both software development and hands-on system, application, and/or database administration
Experience in Telecom or Application Service Provider environment
Understanding of commonly used telecommunications protocols
Experience with SQL queries, data-mining, reporting and data-handling techniques
Hands-on experience with SMS Gateways/ Billing gateways/ SMSCs or other mobile operator infrastructure components

Benefits

Upstream is an equal opportunity employer. The Company does not discriminate on the basis of race, colour, creed, pregnancy, religion, gender, national origin, age, disability, marital, or any other legally protected status. The Company also makes reasonable accommodations for disabled employees. Finally, the Company prohibits the harassment of any individual based on their protected status. This policy applies to all areas of personnel actions including recruitment, hiring, training, promotion, compensation, benefits, transfer, and social and recreational programs.",["D",1698192000000],["D",1722389565022],[405,406,407],{"_65":89,"_67":90,"_69":91},{"_95":410,"_97":111},{"_95":409,"_97":105},{"_95":408,"_97":98},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":112,"_71":107,"_67":113,"_69":114,"_97":111},{"_65":412,"_67":413,"_69":414,"_71":72,"_16":415,"_74":172,"_76":358,"_78":79,"_80":81,"_82":416,"_84":417,"_86":418,"_9":419},"7d3ec96a-c62b-49a5-9047-1fa43bd34e80","Senior Business Intelligence Engineer (Hybrid)","senior-business-intelligence-engineer-hybrid-at-upstreamsystems-com-jul-30-2024-257bf1","

Who we are

The role

Our BI team is growing and we are looking for an experienced Senior Business Intelligence Engineer to join us in Athens, Greece. She/he will be responsible for delivering solutions that are crucial for the day-to-day and strategic decision-making of other internal teams.

As a Senior BI Engineer at Upstream, you’ll have the chance to work on a broad range of BI areas and technologies, from analyzing business requirements to data management and ETL, to report building and data visualization. You’ll also have the opportunity to work on different products and interact with internal stakeholders from several regions across the world. You’ll also have the flexibility to make design decisions and propose solutions; innovation and fresh ideas are more than welcome.

Main Responsibilities

Design, build and maintain efficient data pipelines and ETLs on big volumes of data.
Design, build and maintain online reports and dashboards.
Deliver on-demand data and reports
Work closely with the business users to capture requirements.
Monitor the health and performance of the BI infrastructure and take the required corrective actions.
Continuously try to improve our tools and processes, following high quality and efficiency standards.

Requirements

Degree in Computer Science, Engineering, Natural Sciences or other quantitative field.
4+ years of experience in a similar role.
SQL expertise is a must. A suitable candidate should be comfortable with using complex joins, aggregations and window/analytics functions and follow best practices in terms of query optimization.
Experience in Python or similar scripting language, along with basic concepts of version control (Git).
Experience in at least one BI reporting tool (e.g. Tableau, Power BI, Cognos, etc.) and spreadsheets (Excel, Google Sheets).
Any experience with ETL tools (e.g. SSIS, Informatica, Pentaho DI, etc.) is a plus.
Any experience in handling semi-structured data and data APIs is a plus.
Ability to handle and prioritize tasks with minimum supervision, ensuring smooth delivery.

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

",["D",1722297600000],["D",1728610366191],[420,421,422,423,424],{"_65":89,"_67":90,"_69":91},{"_95":429,"_97":98},{"_95":428,"_97":105},{"_95":427,"_97":105},{"_95":426,"_97":111},{"_95":425,"_97":161},{"_65":162,"_71":163,"_67":164,"_69":165,"_97":166},{"_65":112,"_71":107,"_67":113,"_69":114,"_97":111},{"_65":371,"_71":107,"_67":372,"_69":373,"_97":105},{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":431,"_67":432,"_69":433,"_71":72,"_16":434,"_74":75,"_76":77,"_78":79,"_80":81,"_82":435,"_84":436,"_86":437,"_9":438},"8cca93c1-ef28-4a5a-9cc3-73ec128b0782","Cloud Platform Engineer (Hybrid)","cloud-platform-engineer-hybrid-at-upstreamsystems-com-nov-18-2024-786ce0","

Who we are

The role

Our focus centers on streamlining the development, building, testing, integration, packaging, and deployment of our microservice-based products. We are looking for a Cloud Platform Engineer to join our team and help us maintain and scale our infrastructure to provide an even better experience for our users. An ideal candidate would be a passionate engineer who loves Linux, prefers working in the shell over an IDE, is intimately familiar with cloud infrastructure and VMWare virtualization, has a strong networking background, is comfortable in a polyglot environment, who thrives in true-agile, fast paced, production facing environments and loves hardware. A team member who may not have all the answers but knows how to find them.

What you will do...

Help us define the future of our artifact and container-based deployment strategies.
Evolve and support our immutable deployment platform.
Contribute to the design of high-volume, low-latency applications for mission-critical systems, delivering high availability and performance while working closely with development teams.
Design and implement on-premise and cloud infrastructure solutions on platforms such as VMWare, AWS, Azure.
Maintain and upgrade our on-premise data center infrastructure.
Optimize cloud infrastructure for cost, performance, and scalability.
Develop and deploy Infrastructure as Code (IaC) using tools like Ansible and Terraform.
Troubleshoot and resolve issues related to system performance, network connectivity, and security.
Perform system upgrades, patch management, and security hardening.
Adapt to and become part of a continuously evolving environment.
Design and implement CI/CD pipelines using tools like Jenkins, GitLab CI/CD, or other similar tools to automate the build, test, and deployment processes.
Enable developers to quickly build, bake, and deploy images either locally, on Kubernetes and to the cloud.
Work directly with Upstream engineers to provide a polyglot-friendly experience and first-class support for platforms built on Java, Python, Go, PHP and others.
Monitor the performance, availability, and security of our on-premise and cloud environments.
Contribute to the development of tools for automating deployments, unifying platform metrics, reporting, and monitoring.

Requirements

Expertise in VMware vCenter, clustering, and virtualization technologies.

Experience managing bare metal servers, storages and SAN networks.
Linux experience -- knowledge on Linux system administration and troubleshooting.
Exposure to container technology (e.g., Docker), container orchestration systems (e.g., Kubernetes), container-focused Linux distributions, and cloud virtualization.
Cloud experience -- designing and building tools and infrastructure for cloud platforms (e.g. AWS, Azure).
Knowledge on DevOps tools -- Ansible, Terraform, Helm, Jenkins, Gitlab, Grafana, Prometheus, Loki amongst others.
Operational experience -- comfortable providing support to other departments, optimizing deployments for availability and uptime, going deep on troubleshooting and remediation.
Programming experience -- Bash, Python, Golang amongst others (both reading and writing).
Knowledge of Relational Databases (e.g., PostgreSQL) and NoSQL systems (e.g., Redis, ElasticSearch, Couchbase, Cassandra).
Great communication skills, both written and verbal.
Eagerness to learn new technologies.

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

",["D",1731888000000],["D",1733275957978],[439,440,441,442,443,444,445,446,447,448,449,450,451,452,453],{"_65":89,"_67":90,"_69":91},{"_95":486,"_97":98},{"_95":485,"_97":105},{"_95":484,"_97":111},{"_95":483,"_97":105},{"_95":479,"_97":105},{"_95":478,"_97":105},{"_95":474,"_97":111},{"_95":473,"_97":105},{"_95":472,"_97":105},{"_95":471,"_97":105},{"_95":467,"_97":105},{"_95":463,"_97":105},{"_95":459,"_97":105},{"_95":455,"_97":111},{"_95":454,"_97":111},{"_65":140,"_71":107,"_67":141,"_69":142,"_97":111},{"_65":456,"_71":107,"_67":457,"_69":458,"_97":111},"d8e28615-b6aa-4b0b-a766-429695790a03","PHP","php",{"_65":460,"_71":107,"_67":461,"_69":462,"_97":105},"c360889c-9e29-470e-8571-e25076f72639","AWS","aws",{"_65":464,"_71":107,"_67":465,"_69":466,"_97":105},"4d70ff61-7282-4b3e-9dc4-818d8e96a4e1","Azure","azure",{"_65":468,"_71":107,"_67":469,"_69":470,"_97":105},"2824a85f-626b-44f7-8ef2-0c6a6cdc3fc1","Terraform","terraform",{"_65":250,"_71":107,"_67":251,"_69":252,"_97":105},{"_65":258,"_71":107,"_67":259,"_69":260,"_97":105},{"_65":233,"_71":107,"_67":234,"_69":235,"_97":105},{"_65":475,"_71":107,"_67":476,"_69":477,"_97":111},"6c5e2310-2ff4-4721-8d31-def370486ac1","Golang","golang",{"_65":208,"_71":107,"_67":209,"_69":210,"_97":105},{"_65":480,"_71":107,"_67":481,"_69":482,"_97":105},"66e2fc35-d582-4ad9-b072-0c4e908dbae3","Ansible","ansible",{"_65":241,"_71":107,"_67":242,"_69":243,"_97":105},{"_65":112,"_71":107,"_67":113,"_69":114,"_97":111},{"_65":254,"_71":107,"_67":255,"_69":256,"_97":105},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":488,"_67":489,"_69":490,"_71":72,"_16":491,"_74":172,"_76":358,"_78":79,"_80":81,"_82":492,"_84":493,"_86":494,"_9":495},"ed25466a-2ae4-47da-98a9-d6ba683407c5","Business Intelligence Engineer (Hybrid)","business-intelligence-engineer-hybrid-at-upstreamsystems-com-nov-14-2024-7e7d16","

Who we are

The role

Main Responsibilities

Design, build and maintain efficient data pipelines and ETLs on big volumes of data.
Design, build and maintain online reports and dashboards.
Deliver on-demand data and reports.
Work closely with the business users to capture requirements.
Monitor the health and performance of the BI infrastructure and take the required corrective actions.
Continuously try to improve our tools and processes, following high quality and efficiency standards.

Requirements

Degree in Computer Science, Engineering, Natural Sciences or other quantitative field.
2+ years of experience in a similar role.
SQL expertise is a must. A suitable candidate should be comfortable with using complex joins, aggregations and window/analytics functions and follow best practices in terms of query optimization.
Experience in Python or similar scripting language, along with basic concepts of version control (Git).
Experience in at least one BI reporting tool (e.g. Tableau, Power BI, Cognos, etc.) and spreadsheets (Excel, Google Sheets).
Any experience with ETL tools, such as Pentaho DI, is a plus.
Any experience in handling semi-structured data and data APIs is a plus.
Nice to have experience in Airflow or other similar workflow management platforms.
Ability to handle and prioritize tasks with minimum supervision, ensuring smooth delivery.

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

",["D",1731542400000],["D",1738373903779],[496,497,498,499],{"_65":89,"_67":90,"_69":91},{"_95":503,"_97":98},{"_95":502,"_97":105},{"_95":501,"_97":105},{"_95":500,"_97":111},{"_65":112,"_71":107,"_67":113,"_69":114,"_97":111},{"_65":371,"_71":107,"_67":372,"_69":373,"_97":105},{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":505,"_67":506,"_69":507,"_71":72,"_16":508,"_74":75,"_76":77,"_78":79,"_80":81,"_82":509,"_84":510,"_86":511,"_9":512},"d69680b8-4ab4-4698-bfd6-97490f24a5a8","Cloud Platform Engineer - SysAdmin (Hybrid)","cloud-platform-engineer-sysadmin-hybrid-at-upstreamsystems-com-dec-19-2024-bc3de8","

Who we are

The role

Our focus centers on streamlining the development, building, testing, integration, packaging, and deployment of our microservice-based products. We are looking for a Cloud Platform Engineer to join our team and help us maintain and scale our infrastructure to offer our users an even greater experience. An ideal candidate would be a passionate engineer who loves Linux, who feels more comfortable in the shell rather than in an IDE, who is intimately familiar with cloud infrastructure and VMWare virtualization, has a strong networking background, is comfortable in a polyglot environment, who thrives in true-agile, fast-paced, production facing environments and loves hardware. This team member may not have all the answers but knows how to find them.

What you will do…

Help us define the future of our artifact and container-based deployment strategies.
Evolve and support our immutable deployment platform.
Contribute to the design of high-volume, low-latency applications for mission-critical systems, ensuring high availability and performance, while collaborating closely with development teams.
Design and implement on-premise and cloud infrastructure solutions on platforms such as VMWare, AWS, Azure.
Maintain and upgrade our on-premise data center infrastructure.
Develop and deploy Infrastructure as Code (IaC) using tools like Ansible and Terraform.
Troubleshoot and resolve issues related to system performance, network connectivity, and security.
Perform system upgrades, patch management, and security hardening.
Become part of a continuously evolving environment.
Optimize cloud infrastructure for cost, performance, and scalability.
Monitor the performance, availability, and security of our on-premise and cloud environments.
Become part of development on tools for automating deployments, unify platform metrics, reporting and monitoring.

Requirements

1-3 years of experience in a similar role.
Expertise in VMWare vCenter, clustering, and virtualization technologies.
Experience with managing bare metal servers, storage, and SAN networks.
Linux experience -- knowledge of Linux system administration and troubleshooting.
Exposure to container technology (e.g. Docker), container orchestration systems (e.g Kubernetes), container-focused Linux distributions, and virtualization in the cloud.
Cloud experience -- designing and building tools and infrastructure for cloud platforms (e.g. AWS, Azure).
Moderate exposure to tools -- Ansible, Terraform, Helm, Jenkins, Gitlab, Grafana, Prometheus, and Loki amongst others.
Operational experience -- comfortable supporting other departments, optimizing deployments for availability and uptime, and going deep on troubleshooting and remediation.
Programming experience -- Bash, Python, amongst others (both reading and writing).
Knowledge of Relational Databases (e.g. Postgres), and NoSQL DBs/systems (e.g. Redis, ElasticSearch).
Great communication skills, both written and verbal.
Eagerness to learn new technologies.

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

",["D",1734566400000],["D",1742002548813],[513,514,515,516,517,518,519,520,521,522,523],{"_65":89,"_67":90,"_69":91},{"_95":534,"_97":98},{"_95":533,"_97":105},{"_95":532,"_97":105},{"_95":531,"_97":105},{"_95":530,"_97":105},{"_95":529,"_97":105},{"_95":528,"_97":105},{"_95":527,"_97":111},{"_95":526,"_97":105},{"_95":525,"_97":105},{"_95":524,"_97":105},{"_65":233,"_71":107,"_67":234,"_69":235,"_97":105},{"_65":460,"_71":107,"_67":461,"_69":462,"_97":105},{"_65":464,"_71":107,"_67":465,"_69":466,"_97":105},{"_65":112,"_71":107,"_67":113,"_69":114,"_97":111},{"_65":254,"_71":107,"_67":255,"_69":256,"_97":105},{"_65":208,"_71":107,"_67":209,"_69":210,"_97":105},{"_65":480,"_71":107,"_67":481,"_69":482,"_97":105},{"_65":468,"_71":107,"_67":469,"_69":470,"_97":105},{"_65":250,"_71":107,"_67":251,"_69":252,"_97":105},{"_65":258,"_71":107,"_67":259,"_69":260,"_97":105},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":536,"_67":537,"_69":538,"_71":72,"_16":539,"_74":120,"_76":121,"_78":79,"_80":81,"_82":540,"_84":541,"_86":542,"_9":543},"15de33e9-382a-4cb8-946a-675c29be24de","Senior Software Engineer, Big Data Java / Scala (Hybrid)","senior-software-engineer-big-data-java-scala-hybrid-at-upstreamsystems-com-sep-16-2024-93e02b","

Our company

The role

Due to our global expansion we are looking for an enthusiastic Senior Big Data Developer to join our Software Development team in Athens, Greece.

Our HQ offices are based in Gerakas and we have adopted a hybrid work mode.

Your main responsibilities will be:

Work on big data platforms including data ingestions and data warehouse development
Programming in distributed messaging and data processing systems: Kafka, Spark
Design, develop, and support new and existing ETL processes employing industry standards and best practices to enhance loading of data from and into different source/ target systems
Write well designed, maintainable, testable, efficient software modules
Ensure designs are in compliance with specifications and that specifications cover all needed aspects of the implementation
Provide support for production systems
Support continuous improvement by investigating and presenting alternatives and new technologies

Requirements

The skills we require:

BSc/MSc in Computer Science, Engineering or equivalent
4+ years of full time professional experience
Experience programming in Java or Scala or other functional programming languages
Excellent knowledge of SQL
Familiarity with build tools such as Maven or Gradle
Proficient understanding of Git and its workflows

The skills we prefer:

Experience with a distributed data processing platform such as Spark, Hadoop
Experience with a distributed messaging system such as Kafka
Experience working with Data Warehouses

You will be an excellent fit for our team if you are:

Strong team player with good communication skills
Eager to work with leading-edge technologies
Analytical thinker with attention to detail
Reliable and dedicated professional with clear thinking and strong attention to detail
Able to multitask and thrive in a dynamic environment as well as balance and prioritize activities to ensure critical items are addressed

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

Upstream is an equal-opportunity employer. The Company does not discriminate on the basis of race, color, creed, pregnancy, religion, gender, national origin, age, disability, marital, or any other legally protected status. The Company also makes reasonable accommodations for disabled employees. Finally, the Company prohibits the harassment of any individual based on their protected status. This policy applies to all areas of personnel actions including recruitment, hiring, training, promotion, compensation, benefits, transfer,and social and recreational programs

",["D",1726444800000],["D",1744853763191],[544,545,546,547,548,549,550],{"_65":89,"_67":90,"_69":91},{"_95":557,"_97":98},{"_95":556,"_97":105},{"_95":555,"_97":98},{"_95":554,"_97":98},{"_95":553,"_97":105},{"_95":552,"_97":161},{"_95":551,"_97":135},{"_65":136,"_71":107,"_67":137,"_69":138,"_97":135},{"_65":162,"_71":163,"_67":164,"_69":165,"_97":166},{"_65":152,"_71":107,"_67":153,"_69":154,"_97":105},{"_65":157,"_71":107,"_67":158,"_69":159,"_97":111},{"_65":140,"_71":107,"_67":141,"_69":142,"_97":111},{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":559,"_67":560,"_69":561,"_71":72,"_16":562,"_74":120,"_76":77,"_78":79,"_80":81,"_82":563,"_84":564,"_86":565,"_9":566},"a5dea5c1-4aee-4715-8bdd-b3d42eedf847","Senior Software Engineer, Java","senior-software-engineer-java-at-upstreamsystems-com-dec-3-2024-cd3943","

Who we are

About the role

We are looking for an enthusiastic Senior Software Engineer to join our Software Development team in Athens, Greece.

As a Senior Software Engineer, you will be part of a very competent team that works on mission – critical applications contributing in all phases of the development process. You will be responsible for Java application development, supporting business objectives while providing expertise in full software development lifecycle, from concept and design, to testing.

Your main responsibilities will be:

Write well designed, testable, efficient software modules.
Ensure designs are in compliance with specifications and that specifications cover all needed aspects of the implementation.
Prepare and produce releases of software components.
Provide support for production systems.
Create/ review design documentation and provide feedback on test plans.
Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review.
Support and coach junior developers.

Requirements

The skills we require:

BSc/MSc in Computer Science, Software Engineering or equivalent.
5+ years of full time professional experience in designing and developing applications using the Java ecosystem.
Solid background in Object Oriented Analysis and Design.
Experience with popular Java frameworks and technologies such as Spring Framework, JPA/Hibernate.
Experience with asynchronous messaging technologies (e.g. RabbitMQ, Kafka).
Experience designing and developing HTTP web services.
Excellent knowledge of SQL and RDBMS concepts.
Working knowledge of Maven, Git and Continuous Delivery principles.

Experience in the following will be extra appreciated:

NoSQL databases such as Redis, Elasticsearch, Couchbase.
Caching technologies, such as Hazelcast, EhCache.
Horizontally scalable, distributed, microservices architectures.

You will be an excellent fit for our team if you are:

Strong team player with good communication skills.
Eager to work with leading-edge technologies.
Reliable and dedicated professional with clear thinking and strong attention to detail.
Able to work well under pressure and meeting deadlines in sometimes challenging situations.
Able to multitask and thrive in a dynamic environment as well as balance and prioritize activities to ensure critical items are addressed.

Benefits

Follow us on LinkedIn and stay updated on our latest news.

",["D",1733184000000],["D",1744853763191],[567,568,569,570,571,572,573,574,575,576],{"_65":89,"_67":90,"_69":91},{"_95":593,"_97":98},{"_95":592,"_97":105},{"_95":591,"_97":105},{"_95":590,"_97":105},{"_95":586,"_97":135},{"_95":585,"_97":111},{"_95":584,"_97":105},{"_95":583,"_97":105},{"_95":582,"_97":161},{"_95":577,"_97":578},{"_65":579,"_71":107,"_67":580,"_69":581,"_97":578},2400,"474b1c92-1069-48fd-a925-175b2b52cf37","Hibernate","hibernate",{"_65":162,"_71":163,"_67":164,"_69":165,"_97":166},{"_65":152,"_71":107,"_67":153,"_69":154,"_97":105},{"_65":258,"_71":107,"_67":259,"_69":260,"_97":105},{"_65":140,"_71":107,"_67":141,"_69":142,"_97":111},{"_65":587,"_71":107,"_67":588,"_69":589,"_97":135},"b0450936-ff2c-4c61-bb86-024fa15b72f1","Spring Framework","spring-framework",{"_65":225,"_71":107,"_67":226,"_69":227,"_97":105},{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":254,"_71":107,"_67":255,"_69":256,"_97":105},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":595,"_67":596,"_69":597,"_71":72,"_16":598,"_74":172,"_76":77,"_78":79,"_80":81,"_82":599,"_84":600,"_86":601,"_9":602},"7a323e93-6c4b-4c1a-98cf-c7e021c0e8a7","Senior DevOps Engineer","senior-devops-engineer-at-upstreamsystems-com-dec-3-2024-5a17ee","

Who we are

About the role

Our focus centers on streamlining the development, building, testing, integration, packaging, and deployment of our micro-services. We are seeking an experienced DevOps Engineer to help us maintain and scale our infrastructure in order to offer our users an even greater experience. An ideal candidate would be a passionate engineer who loves Linux, who is intimately familiar with cloud infrastructure and has a solid networking background. Additionally, they should have a developer-oriented mindset, be experienced in coding, comfortable working in a polyglot environment, excel in truly agile, fast-paced, production-facing environments, and while they may not have all the answers, they have the resourcefulness and determination to find them.

Key Responsibilities

Help us define the future of our artifact and container-based deployment strategies
Evolve and support our immutable deployment platform
Develop applications and tools written in Python and Golang
Contribute in the design of high-volume, low-latency applications for mission-critical systems, delivering high-availability and performance
Trouble-shoot and classify production issues
Become part of a continuously evolving environment
Help with the capacity planning for new projects in terms of hardware requirements, using proven best practices
Monitor and tune production systems performance
Become part of development on tools for automating deployments, unify platform metrics, reporting and monitoring
Design and implement CI/CD pipelines using Jenkins, GitLab CI/CD, or other similar tools to automate the build, test, and deployment processes
Enable developers to quickly build, bake, and deploy images either locally, on Kubernetes and to the cloud
Work directly with Upstream engineers to provide a polyglot-friendly experience and first-class support for platforms built on Java, Python, Go, PHP and others

Requirements

Strong programming experience -- Python, Golang amongst others (both reading and writing)

Linux experience -- knowledge on Linux system administration
Exposure to container technology (e.g. Docker), container orchestration systems (e.g Kubernetes), container-focused Linux distributions, and virtualization in the cloud
Cloud experience -- designing and building tools and infrastructure for cloud platforms (e.g. AWS, Azure)
Deep Knowledge on DevOps tools -- Ansible,Terraform, Helm, Jenkins, Gitlab, Grafana, Prometheus, Loki amongst others
Operational experience -- comfortable providing support to other departments, optimizing deployments for availability and uptime, going deep on troubleshooting and remediation
Knowledge of Relational Databases (e.g. postgres), NoSQL DBs/systems (e.g. Redis, ElasticSearch, Couchbase, Cassandra)
Great communication skills, both written and verbal
Eagerness to learn new technologies

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

",["D",1733184000000],["D",1766707121998],[603,604,605,606,607,608,609,610,611,612,613,614,615,616,617],{"_65":89,"_67":90,"_69":91},{"_95":632,"_97":98},{"_95":631,"_97":105},{"_95":630,"_97":111},{"_95":629,"_97":105},{"_95":628,"_97":105},{"_95":627,"_97":111},{"_95":626,"_97":111},{"_95":625,"_97":105},{"_95":624,"_97":105},{"_95":623,"_97":105},{"_95":622,"_97":105},{"_95":621,"_97":105},{"_95":620,"_97":105},{"_95":619,"_97":161},{"_95":618,"_97":111},{"_65":140,"_71":107,"_67":141,"_69":142,"_97":111},{"_65":162,"_71":163,"_67":164,"_69":165,"_97":166},{"_65":208,"_71":107,"_67":209,"_69":210,"_97":105},{"_65":480,"_71":107,"_67":481,"_69":482,"_97":105},{"_65":241,"_71":107,"_67":242,"_69":243,"_97":105},{"_65":468,"_71":107,"_67":469,"_69":470,"_97":105},{"_65":254,"_71":107,"_67":255,"_69":256,"_97":105},{"_65":233,"_71":107,"_67":234,"_69":235,"_97":105},{"_65":475,"_71":107,"_67":476,"_69":477,"_97":111},{"_65":456,"_71":107,"_67":457,"_69":458,"_97":111},{"_65":460,"_71":107,"_67":461,"_69":462,"_97":105},{"_65":464,"_71":107,"_67":465,"_69":466,"_97":105},{"_65":112,"_71":107,"_67":113,"_69":114,"_97":111},{"_65":258,"_71":107,"_67":259,"_69":260,"_97":105},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":634,"_67":169,"_69":635,"_71":72,"_16":636,"_74":-5,"_76":-5,"_78":-5,"_80":-5,"_82":637,"_84":-5,"_86":638,"_9":639},"f540685b-ad34-4990-876e-a51598d6a688","software-engineer-full-stack-javascript-at-upstreamsystems-com-aug-25-2025-472a0f","

Who we are

We are a leader in mobile technology, providing innovative solutions to 1.2 billion consumers. In an ever-increasing digital world, we help businesses grow their digital reach & toolkits to optimize user experience, increase engagement, attract new customers, and boost their revenues.
Think of performance marketing but on steroids as our top-notch marketeers and engineers build digital journeys through an omnichannel marketing approach like no other. Currently, we work with the biggest names in Telco, Insurance, Education, FMCGs, and Retail in over 45 countries in Latin America, Africa, the Middle East, and South-East Asia.

Τhe role

In the context of our growing business and ongoing project needs, we are looking for an enthusiastic Software Engineer to join our Software Development team in Athens, Greece.

Our HQ offices are based in Gerakas, and we have adopted a hybrid work mode.

As a Software Engineer, you will be part of a competent team that works on mission–critical applications throughout the entire development lifecycle, from concept and design to developing and delivering to production. You will use a modern JavaScript tech-stack, such as React/Next.js, Express.js, to build both the public-facing and internal application modules of our products. You will work in a cross-functional team with QA Automation and DevOps Engineers, who are integral to our CI/CD process. You will collaborate with UI/UX Designers and Product Managers to produce our world-class Marketing Technology Platform.

We use the industry's best practices and prioritize providing an exceptional developer experience, which means that you will have the tools and support you need to thrive in your role. You'll have the opportunity to work with top-tier private cloud infrastructure like Kubernetes clusters and dedicated \"performance labs\" to ensure that we meet our Platform's performance and scalability needs. We believe in fostering an environment that allows you to reach your full potential and deliver high-quality work with confidence.

Your main responsibilities will be to:

•\tWrite well-designed, testable, efficient software modules.

•\tTranslate business specifications, designs, and wireframes into high-quality code.

•\tCreate reusable components for the frontend component library.

•\tPrepare and produce releases of software modules.

•\tTroubleshoot and support existing products and infrastructure.

•\tReview, test, and debug code.

•\tSupport continuous improvement by investigating alternatives and technologies and presenting these for architectural review.

Requirements

Knowledge, Skills, and Experience

Computer Science, Engineering, or equivalent degree.
2+ years of full-time professional Full Stack / Web Development experience.
Hands-on experience in designing and developing full-stack applications using JavaScript, Typescript.
Hands-on experience in a popular library/framework such as React, Next.js, and Express.
Experience with HTML, CSS, and responsive design.
Experience with designing and consuming HTTP APIs.
SQL and NoSQL databases and caches (e.g., MongoDB, PostgreSQL, Elasticsearch, Redis, Memcached).
Messaging systems such as Kafka.
CI/CD tools and processes.

You will be an excellent fit for our team if you are:

Strong team player with good communication skills.
Eager to work with leading-edge technologies.
Analytical thinker with attention to detail.
Reliable and dedicated professional with clear thinking and strong attention to detail.
Able to multitask and thrive in a dynamic environment as well as balance and prioritize activities to ensure critical items are addressed.

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

Upstream is an equal-opportunity employer. The Company does not discriminate on the basis of race, color, creed, pregnancy, religion, gender, national origin, age, disability, marital status, or any other legally protected status. The Company also makes reasonable accommodations for disabled employees. Finally, the Company prohibits the harassment of any individual based on their protected status. This policy applies to all areas of personnel actions, including recruitment, hiring, training, promotion, compensation, benefits, transfer, and social and recreational programs

",["D",1756080000000],[640,641,642,643,644,645,646,647,648,649,650,651,652,653,654,655,656],{"_65":89,"_67":90,"_69":91},{"_95":673,"_97":105},{"_95":672,"_97":105},{"_95":671,"_97":105},{"_95":670,"_97":105},{"_95":669,"_97":105},{"_95":668,"_97":135},{"_95":667,"_97":105},{"_95":666,"_97":105},{"_95":665,"_97":98},{"_95":664,"_97":105},{"_95":663,"_97":111},{"_95":662,"_97":105},{"_95":661,"_97":111},{"_95":660,"_97":197},{"_95":659,"_97":105},{"_95":658,"_97":105},{"_95":657,"_97":135},{"_65":213,"_71":107,"_67":214,"_69":215,"_97":135},{"_65":152,"_71":107,"_67":153,"_69":154,"_97":105},{"_65":225,"_71":107,"_67":226,"_69":227,"_97":105},{"_65":198,"_71":107,"_67":199,"_69":200,"_97":197},{"_65":204,"_71":107,"_67":205,"_69":206,"_97":111},{"_65":208,"_71":107,"_67":209,"_69":210,"_97":105},{"_65":221,"_71":107,"_67":222,"_69":223,"_97":111},{"_65":258,"_71":107,"_67":259,"_69":260,"_97":105},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":229,"_71":107,"_67":230,"_69":231,"_97":105},{"_65":241,"_71":107,"_67":242,"_69":243,"_97":105},{"_65":237,"_71":107,"_67":238,"_69":239,"_97":135},{"_65":245,"_71":107,"_67":246,"_69":247,"_97":105},{"_65":217,"_71":107,"_67":218,"_69":219,"_97":105},{"_65":250,"_71":107,"_67":251,"_69":252,"_97":105},{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":254,"_71":107,"_67":255,"_69":256,"_97":105},{"_65":675,"_67":676,"_69":677,"_71":72,"_16":678,"_74":-5,"_76":-5,"_78":-5,"_80":-5,"_82":679,"_84":-5,"_86":680,"_9":681},"543ce9bb-f070-47c7-9eb5-2d8549b7014b","Senior Security & Compliance Engineer","senior-security-compliance-engineer-at-upstreamsystems-com-oct-10-2025-d94616","

Who we are

About the role:

Our focus centers on bringing domain-specific security knowledge, skills, and best practices to our talented network and engineering teams. We are seeking a Sr. Security & Compliance Engineer to provide added value services, helping ensure our business remains highly available, flexible, and robust. An ideal candidate would be a passionate engineer who is dedicated to pursuing complicated technical security problems and coming up with robust engineering solutions. This role requires someone who can exhibit a technical lead role for projects and technologies, who acts as a crucial point of reference within the company, and thrives in challenging, production-facing environments.

What you will do...

• Monitor and respond to security events, managing escalation and acting as a liaison during security incidents.

• Serve as a dedicated security analyst for critical projects.

• Lead the vulnerability management lifecycle, overseeing installation and patching efforts.

• Conduct specialized security work, including security audits, Penetration Testing (e.g., CHECK, CREST, CEH, TIGER), evidence collection, and forensics analysis.

• Drive and own technical tasks, pursuing their completion within time and technological constraints.

• Contribute to end-user security education and awareness.

• Maintain and update compliance posture, ensuring security policies and standards remain current and effective.

• Serve as a primary technical resource for security-related client discussions, articulating technical concepts to various types of audiences.

• Provide essential security content and review for commercial engagements, including RFPs, bids, and client assurances.

Requirements

• Networking & Infrastructure: Excellent knowledge of TCP/IP. Comprehensive understanding of the core Linux network stack.

• Security Testing Methodologies: Expert proficiency in essential security disciplines including Network Traffic and Protocol Analysis, comprehensive Vulnerability Assessment and Scanning methodologies, network service enumeration, and hands-on Web Application Penetration Testing techniques.

• System and Infrastructure Hardening: Proven, hands-on experience in developing, implementing, and auditing standardized security baselines, robust configuration management controls, and effective patch management strategies across diverse operating system and application platforms, including critical data services.

• Security Control Systems: Deep knowledge and hands-on experience with SIEM solutions and Vulnerability Management platforms.

⮚ Experience implementing and managing IPS Systems (Cisco, Checkpoint) and Firewalls (Cisco, Checkpoint).

⮚ Proficiency with DLP and Endpoint Protection solutions, including Application Control and Device Control.

⮚ Experience with Web Application Firewalls (WAF).

⮚ Familiarity with products for IDAM (Identity and Access Management).

• Data Protection: Experienced in data encryption technologies and products.

• Development: High-quality Python/shell development experience is considered a plus.

• Knowledge of Cloud and Mobile Security Architecture.

• Experience in datacenter protection strategies.
• Security Governance: Demonstrable knowledge of common security standards and compliance frameworks (e.g., ISO 27001, NIST Cybersecurity Framework, SOC 2). Practical experience translating technical controls into formal, auditable security policies and procedures.
• Formal Documentation: Proven ability to translate complex security testing results, audits, and posture assessments into high-quality, professional, and accessible documentation suitable for internal leadership and external client assurance reviews.

• Stakeholder Communication: Solid communication skills (both oral and written), being able to explain concepts and ideas to various types of audiences, with proven experience presenting technical security findings and strategy to both C-level executives and external clients.

Additional Experience

• Knowledge of Cloud and Mobile Security Architecture and experience in datacenter protection strategies.

• Prior experience in a network position will be considered a plus.

Core Competencies

• Operational Excellence: Track record of meeting deadlines in challenging situations. Dependable, reliable, with strong attention to detail. Requires a flexible work style to ensure quality standards are met.

• Teamwork: Strong team player, capable of providing guidelines and assistance to peers

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

",["D",1760054400000],[682,683,684,685],{"_65":89,"_67":90,"_69":91},{"_95":689,"_97":161},{"_95":688,"_97":161},{"_95":687,"_97":111},{"_95":686,"_97":98},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":112,"_71":107,"_67":113,"_69":114,"_97":111},{"_65":162,"_71":163,"_67":164,"_69":165,"_97":166},{"_65":690,"_71":163,"_67":691,"_69":692,"_97":166},"0d747953-bac5-44b2-90d1-f12fcf170997","Security Engineer","security-engineer",{"_65":694,"_67":695,"_69":696,"_71":72,"_16":697,"_74":-5,"_76":-5,"_78":-5,"_80":-5,"_82":698,"_84":-5,"_86":699,"_9":700},"a14c65cf-b22f-4581-8dbc-0b746f5af98e","Software Engineer, Java","software-engineer-java-at-upstreamsystems-com-jan-26-2026-36831d","

The company

The role

We are looking for an enthusiastic Software Engineer, Java, to join our Software Development team in Athens, Greece.

You will be part of a very competent team that works on mission – critical applications, contributing to all phases of the development process. You will be responsible for Java application development, supporting business objectives while providing expertise in the full software development lifecycle, from concept and design to testing.

Your main responsibilities will be:

Develop on high-volume, low-latency applications for mission-critical systems, delivering high-availability and performance.
Write well-designed, testable, efficient software modules.
Ensure designs comply with specifications and that specifications cover all needed aspects of the implementation.
Create/review design documentation and provide feedback on test plans.

Requirements

BSc/MSc in Computer Science, Software Engineering or equivalent.
3+ years of full time professional experience in designing and developing applications using the Java ecosystem.
Solid background in Object Oriented Analysis and Design.
Experience with popular Java frameworks and technologies such as Spring Framework, JPA/Hibernate, JEE.
Good knowledge of SQL and RDBMS concepts.
Experience with HTTP APIs.
Basic understanding of concurrency concepts.
Working knowledge of Maven, Git and CI/CD principles.

Experience in the following will be extra appreciated:

Asynchronous messaging technologies, such as RabbitMQ, Kafka.
Horizontally scalable, distributed, microservices architectures.
NoSQL databases such as Redis, Elasticsearch.
Caching technologies, such as Hazelcast, EhCache.

You will be an excellent fit for our team if you are:

Strong team player with good communication skills.
Eager to work with leading-edge technologies.
Analytical thinker with attention to detail.
Reliable and dedicated professional with clear thinking and strong attention to detail.
Able to multitask and thrive in a dynamic environment as well as balance and prioritize activities to ensure critical items are addressed.

Benefits

",["D",1769385600000],[701,702,703,704,705,706,707,708,709,710],{"_65":89,"_67":90,"_69":91},{"_95":720,"_97":98},{"_95":719,"_97":105},{"_95":718,"_97":105},{"_95":717,"_97":105},{"_95":716,"_97":105},{"_95":715,"_97":105},{"_95":714,"_97":578},{"_95":713,"_97":111},{"_95":712,"_97":135},{"_95":711,"_97":105},{"_65":225,"_71":107,"_67":226,"_69":227,"_97":105},{"_65":587,"_71":107,"_67":588,"_69":589,"_97":135},{"_65":140,"_71":107,"_67":141,"_69":142,"_97":111},{"_65":579,"_71":107,"_67":580,"_69":581,"_97":578},{"_65":152,"_71":107,"_67":153,"_69":154,"_97":105},{"_65":241,"_71":107,"_67":242,"_69":243,"_97":105},{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":254,"_71":107,"_67":255,"_69":256,"_97":105},{"_65":258,"_71":107,"_67":259,"_69":260,"_97":105},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":722,"_67":723,"_69":724,"_71":72,"_16":725,"_74":-5,"_76":-5,"_78":-5,"_80":-5,"_82":726,"_84":-5,"_86":727,"_9":728},"aa87e469-1c14-41ba-a713-8b6fe0044405","DevOps Engineer","devops-engineer-at-upstreamsystems-com-mar-13-2026-950149","

Who we are

About the role:

Our focus centers on streamlining the development, building, testing, integration, packaging, and deployment of our microservice-based products. We are looking for a Cloud Platform Engineer to join our team and help us maintain and scale our infrastructure to provide an even better experience for our users. An ideal candidate would be a passionate engineer who loves Linux, prefers working in the shell over an IDE, is intimately familiar with cloud infrastructure and VMWare virtualization, has a strong networking background, is comfortable in a polyglot environment, who thrives in true-agile, fast paced, production facing environments and loves hardware. A team member who may not have all the answers but knows how to find them.

What you will do...

Help us define the future of our artifact and container-based deployment strategies.
Evolve and support our immutable deployment platform.
Contribute to the design of high-volume, low-latency applications for mission-critical systems, ensuring high availability and performance, while collaborating closely with development teams.
Design and implement on-premise and cloud infrastructure solutions on platforms such as VMWare, AWS, Azure.
Maintain and upgrade our on-premise data center infrastructure.
Optimize cloud infrastructure for cost, performance, and scalability.
Develop and deploy Infrastructure as Code (IaC) using tools like Ansible and Terraform.
Troubleshoot and resolve issues related to system performance, network connectivity, and security.
Perform system upgrades, patch management, and security hardening.
Adapt to and become part of a continuously evolving environment.
Design and implement CI/CD pipelines using tools like Jenkins, GitLab CI/CD, or other similar tools to automate the build, test, and deployment processes.
Enable developers to quickly build, bake, and deploy images either locally, on Kubernetes and to the cloud.
Work directly with Upstream engineers to provide a polyglot-friendly experience and first-class support for platforms built on Java, Python, Go, PHP and others.
Monitor the performance, availability, and security of our on-premise and cloud environments.
Contribute to the development of tools for automating deployments, unifying platform metrics, reporting, and monitoring.

Requirements

3--5 years of experience in DevOps, Systems Engineering, or similar roles.
Expertise in VMware vCenter, clustering, and virtualization technologies.
Experience managing bare metal servers, storage, and SAN networks.
Linux experience -- knowledge of Linux system administration and troubleshooting.
Exposure to container technology (e.g., Docker), container orchestration systems (e.g., Kubernetes), container-focused Linux distributions, and cloud virtualization.
Cloud experience -- designing and building tools and infrastructure for cloud platforms (e.g., AWS, Azure).
Knowledge on DevOps tools -- Ansible, Terraform, Helm, Jenkins, Gitlab, Grafana, Prometheus, Loki, amongst others.
Operational experience -- comfortable providing support to other departments, optimizing deployments for availability and uptime, going deep on troubleshooting and remediation.
Programming experience -- Bash, Python, Golang, amongst others (both reading and writing).
Knowledge of Relational Databases (e.g., PostgreSQL) and NoSQL systems (e.g., Redis, Elasticsearch, Couchbase, Cassandra).
Great communication skills, both written and verbal.
Eagerness to learn new technologies.

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

",["D",1773360000000],[729,730,731,732,733,734,735,736,737,738,739,740,741,742,743,744],{"_65":89,"_67":90,"_69":91},{"_95":760,"_97":105},{"_95":759,"_97":105},{"_95":758,"_97":111},{"_95":757,"_97":105},{"_95":756,"_97":105},{"_95":755,"_97":105},{"_95":754,"_97":105},{"_95":753,"_97":111},{"_95":752,"_97":111},{"_95":751,"_97":105},{"_95":750,"_97":105},{"_95":749,"_97":105},{"_95":748,"_97":111},{"_95":747,"_97":105},{"_95":746,"_97":105},{"_95":745,"_97":98},{"_65":144,"_71":100,"_67":145,"_69":146,"_97":103},{"_65":464,"_71":107,"_67":465,"_69":466,"_97":105},{"_65":468,"_71":107,"_67":469,"_69":470,"_97":105},{"_65":112,"_71":107,"_67":113,"_69":114,"_97":111},{"_65":250,"_71":107,"_67":251,"_69":252,"_97":105},{"_65":233,"_71":107,"_67":234,"_69":235,"_97":105},{"_65":225,"_71":107,"_67":226,"_69":227,"_97":105},{"_65":140,"_71":107,"_67":141,"_69":142,"_97":111},{"_65":456,"_71":107,"_67":457,"_69":458,"_97":111},{"_65":460,"_71":107,"_67":461,"_69":462,"_97":105},{"_65":208,"_71":107,"_67":209,"_69":210,"_97":105},{"_65":254,"_71":107,"_67":255,"_69":256,"_97":105},{"_65":258,"_71":107,"_67":259,"_69":260,"_97":105},{"_65":475,"_71":107,"_67":476,"_69":477,"_97":111},{"_65":241,"_71":107,"_67":242,"_69":243,"_97":105},{"_65":480,"_71":107,"_67":481,"_69":482,"_97":105},{"_65":762,"_67":169,"_69":763,"_71":72,"_16":764,"_74":-5,"_76":-5,"_78":-5,"_80":-5,"_82":765,"_84":-5,"_86":766,"_9":767},"f76ba75b-26eb-442a-8862-29d4306ed1d5","software-engineer-full-stack-javascript-at-upstreamsystems-com-mar-23-2026-f3097c","

Who we are

About the Role

In the context of our growing business and ongoing project needs, we are looking for an enthusiastic Software Engineer to join our Software Development team.

Your main responsibilities will be to:

•\tWrite well-designed, testable, efficient software modules.

•\tTranslate business specifications, designs, and wireframes into high-quality code.

•\tCreate reusable components for the frontend component library.

•\tPrepare and produce releases of software modules.

•\tTroubleshoot and support existing products and infrastructure.

•\tReview, test, and debug code.

•\tSupport continuous improvement by investigating alternatives and technologies and presenting these for architectural review.

Requirements

Knowledge, Skills, and Experience

Computer Science, Engineering, or equivalent degree.
2+ years of full-time professional Full Stack / Web Development experience.
Hands-on experience in designing and developing full-stack applications using JavaScript, Typescript.
Hands-on experience in a popular library/framework such as React, Next.js, and Express.
Experience with HTML, CSS, and responsive design.
Experience with designing and consuming HTTP APIs.
SQL and NoSQL databases and caches (e.g., MongoDB, PostgreSQL, Elasticsearch, Redis, Memcached).
Messaging systems such as Kafka.
CI/CD tools and processes.

You will be an excellent fit for our team if you are:

Strong team player with good communication skills.
Eager to work with leading-edge technologies.
Analytical thinker with attention to detail.
Reliable and dedicated professional with clear thinking and strong attention to detail.
Able to multitask and thrive in a dynamic environment as well as balance and prioritize activities to ensure critical items are addressed.

**Apply with your CV in English and attach your portfolio as a PDF or PPT file - we’d love to see your work!

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile, and highly motivated team in a competitive and fast-paced environment.

",["D",1774224000000],[768,769,770,771,772,773,774,775,776,777,778,779,780,781,782,783,784],{"_65":89,"_67":90,"_69":91},{"_95":804,"_97":135},{"_95":803,"_97":105},{"_95":802,"_97":105},{"_95":801,"_97":105},{"_95":800,"_97":105},{"_95":799,"_97":105},{"_95":798,"_97":105},{"_95":797,"_97":105},{"_95":796,"_97":105},{"_95":795,"_97":135},{"_95":791,"_97":98},{"_95":790,"_97":105},{"_95":789,"_97":105},{"_95":788,"_97":111},{"_95":787,"_97":111},{"_95":786,"_97":197},{"_95":785,"_97":105},{"_65":225,"_71":107,"_67":226,"_69":227,"_97":105},{"_65":198,"_71":107,"_67":199,"_69":200,"_97":197},{"_65":204,"_71":107,"_67":205,"_69":206,"_97":111},{"_65":221,"_71":107,"_67":222,"_69":223,"_97":111},{"_65":229,"_71":107,"_67":230,"_69":231,"_97":105},{"_65":258,"_71":107,"_67":259,"_69":260,"_97":105},{"_65":792,"_71":100,"_67":793,"_69":794,"_97":103},"d6d5d49b-3e0f-4958-bd25-1bb1e01098b6","Johannesburg, South Africa","johannesburg-south-africa",{"_65":213,"_71":107,"_67":214,"_69":215,"_97":135},{"_65":208,"_71":107,"_67":209,"_69":210,"_97":105},{"_65":241,"_71":107,"_67":242,"_69":243,"_97":105},{"_65":250,"_71":107,"_67":251,"_69":252,"_97":105},{"_65":254,"_71":107,"_67":255,"_69":256,"_97":105},{"_65":152,"_71":107,"_67":153,"_69":154,"_97":105},{"_65":217,"_71":107,"_67":218,"_69":219,"_97":105},{"_65":245,"_71":107,"_67":246,"_69":247,"_97":105},{"_65":106,"_71":107,"_67":108,"_69":109,"_97":105},{"_65":237,"_71":107,"_67":238,"_69":239,"_97":135},"default","current","top","bottom","workable_com","Upstream is a global mobile marketing technology company that specializes in customer engagement and digital monetization for mobile network operators and large brands.","https://upstreamsystems.com",{"_22":977,"_978":979},"toast","filters",[817,818,819,820,821,822,823,824,825,826,827,828,829,830,831,832,833,834,835,836,837,838,839,840,841,842,843,844,845,846,847,848,849,850,851,852,853,854,855,856],"analytics",{"_65":974,"_14":975,"_69":976},{"_65":971,"_14":972,"_69":973},{"_65":968,"_14":969,"_69":970},{"_65":965,"_14":966,"_69":967},{"_65":962,"_14":963,"_69":964},{"_65":959,"_14":960,"_69":961},{"_65":956,"_14":957,"_69":958},{"_65":953,"_14":954,"_69":955},{"_65":950,"_14":951,"_69":952},{"_65":947,"_14":948,"_69":949},{"_65":944,"_14":945,"_69":946},{"_65":941,"_14":942,"_69":943},{"_65":938,"_14":939,"_69":940},{"_65":935,"_14":936,"_69":937},{"_65":932,"_14":933,"_69":934},{"_65":929,"_14":930,"_69":931},{"_65":926,"_14":927,"_69":928},{"_65":923,"_14":924,"_69":925},{"_65":920,"_14":921,"_69":922},{"_65":917,"_14":918,"_69":919},{"_65":914,"_14":915,"_69":916},{"_65":911,"_14":912,"_69":913},{"_65":908,"_14":909,"_69":910},{"_65":905,"_14":906,"_69":907},{"_65":902,"_14":903,"_69":904},{"_65":899,"_14":900,"_69":901},{"_65":896,"_14":897,"_69":898},{"_65":893,"_14":894,"_69":895},{"_65":890,"_14":891,"_69":892},{"_65":887,"_14":888,"_69":889},{"_65":884,"_14":885,"_69":886},{"_65":881,"_14":882,"_69":883},{"_65":878,"_14":879,"_69":880},{"_65":875,"_14":876,"_69":877},{"_65":872,"_14":873,"_69":874},{"_65":869,"_14":870,"_69":871},{"_65":866,"_14":867,"_69":868},{"_65":863,"_14":864,"_69":865},{"_65":860,"_14":861,"_69":862},{"_65":857,"_14":858,"_69":859},"0b97a312-0f65-48cd-9b3d-f146c138cfbe",".NET jobs","net-jobs","ebf71731-d2c0-49c6-956e-b8769916d5b8","Unity jobs","unity-jobs","a0f4c71f-6a35-47ae-bf4c-8ac20c1cb8d1","CSS jobs","css-jobs","042cd5b5-1dd1-4f07-91d1-469ff27ee1ec","gRPC jobs","grpc-jobs","0be1b018-0289-44cc-b679-8a7cb6d83c2c","Vuex jobs","vuex-jobs","8203730b-6bae-42d9-ad06-af473e4d526e","iOS jobs","ios-jobs","6a783f3a-62c5-47fb-baa8-7b293cb86b28","MongoDB jobs","mongodb-jobs","d1a8a791-26a8-49e5-9c56-fa7dc7e94409","AWS jobs","aws-jobs","9a065a08-8b44-4cbf-95c2-e15d2f1ce2d7","Electron jobs","electron-jobs","244eeac1-46a8-4b0c-bfc7-e6dfe2f7058f","MVC jobs","mvc-jobs","5ae11518-261e-4b97-b7ad-0be11645ac3e","Cypress jobs","cypress-jobs","d3c53034-1884-47aa-a7e8-7922cc57a336","Elasticsearch jobs","elasticsearch-jobs","be74bef3-8c01-481d-866c-cf259966c72a","JWT jobs","jwt-jobs","252d0ac3-f1bb-4b6f-a6c6-571d50021613","Serverless jobs","serverless-jobs","047387d9-77ae-42bf-9e10-abb18e6c3ad5","GraphQL jobs","graphql-jobs","9f7e9856-4e9d-4097-85ab-7e8e5073b343","React jobs","react-jobs","da5a2dab-935f-43aa-805a-b4847d818eea","Ansible jobs","ansible-jobs","978dda2b-6a13-4ca9-b13d-86a562ba897c","Android jobs","android-jobs","699661f8-269f-4e7b-a0b1-f0d3422a2729","Blockchain jobs","blockchain-jobs","5545eceb-b2fa-4b9d-a63c-ec404449aafe","Bun jobs","bun-jobs","8778f686-3509-4ac5-b373-621e0c57d2a9","S3 jobs","s3-jobs","411d1ffd-5cac-4e96-9506-9ba72d17fec5","API jobs","api-jobs","a3eb0f70-eba5-46de-a86c-0a427f6c79d2","TDD jobs","tdd-jobs","4861834e-6d23-461f-a91e-5b1fe3e84604","EC2 jobs","ec2-jobs","a31805d3-2bcc-4a50-8b74-8a2fbbd0dd4d","Docker jobs","docker-jobs","04ffd7db-36b3-4971-a008-453a4644d3d7","Remix jobs","remix-jobs","5592d84b-74bf-4308-9891-0512ba152a32","Vue jobs","vue-jobs","8f46b327-ebce-414c-83bf-cd888dc05407","Flutter jobs","flutter-jobs","d17e99ba-b364-4469-a036-cf2bc3a27aa1","Web3 jobs","web3-jobs","3f319cef-27df-4535-8c9f-73ac128644b3","Next.js jobs","next-js-jobs","00ac9095-bd38-475c-8c2e-e75977c44eff",".NET Core jobs","net-core-jobs","185592c3-7b22-4962-ab9e-15e3839ca99d","React Native jobs","react-native-jobs","dd5e8b34-539d-4b38-bd62-9f1f77dd41ce","ASP.NET jobs","asp-net-jobs","c1136caf-1ab5-4de2-94ff-6aa01376b9b6","Astro jobs","astro-jobs","4f0b038c-be9b-43b4-92cd-eba2258ea860","Azure jobs","azure-jobs","b1d9c383-0296-4781-88b5-913b2f724ab4","GIT jobs","git-jobs","f15868ea-68cc-4805-a09b-da0c42170372","Ruby on Rails jobs","ruby-on-rails-jobs","74f79424-182a-44c0-933c-216a6334f85d","jQuery jobs","jquery-jobs","147abb45-3ef9-47c9-87d6-045ef8dc4e42","JSON jobs","json-jobs","f6c9d2c7-5b05-4abe-8415-d23625545a28","Nuxt.js jobs","nuxt-js-jobs","https://jobsfordevelopers.com","image","https://jobsfordevelopers.com/images/social/default.png"]

Upstream

Automate your job search with AI

Get 1-on-1 mentorship to land your dream job

Popular searches