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Senior Software Developer .NET

KaseyaFull-time$100k - $250k*Kraków, PolandApr 28, 2025
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Kaseya® is the leading provider of complete IT infrastructure and security management solutions for Managed Service Providers (MSPs) and internal IT organizations worldwide powered by AI. Kaseya’s best-in-breed technologies allow organizations to efficiently manage and secure IT to drive sustained business success. Kaseya has achieved sustained, strong double-digit growth over the past several years and is backed by Insight Venture Partners www.insightpartners.com), a leading global private equity firm investing in high-growth technology and software companies that drive transformative change in the industries they serve.

Founded in 2000, Kaseya currently serves customers in over 20 countries across a wide variety of industries and manages over 15 million endpoints worldwide. To learn more about our company and our award-winning solutions, go to www.Kaseya.com and for more information on Kaseya’s culture, please click here: Kaseya Culture.

Kaseya is not your typical company. We are not afraid to tell you exactly who we are and our expectations. We have achieved record levels of success being BOLD, being GRITTY, being ACCOUNTABLE. The thousands of people that succeed at Kaseya are prepared to go above and beyond for the betterment of our customers, and the betterment of their careers and long-term financial wealth. 

About the Role

We are seeking a skilled and passionate Software Engineer with strong C# and .NET expertise to join our growing team. The ideal candidate will have a deep understanding of system networking, operating systems, database technologies, and a strong emphasis on clean, test-driven development.

Key Responsibilities

  • Develop and maintain applications using C# and .NET (both .NET Framework and .NET Core).

  • Design, develop, and troubleshoot .NET Core applications across Windows, MacOS, and Ubuntu environments.

  • Implement and maintain secure code signing practices across multiple platforms (Windows, Linux, MacOS).

  • Write and maintain shell scripts for Linux (Bash), Windows (PowerShell), and optionally Python or Perl scripting.

  • Collaborate with team members to foster a strong testing culture through unit testing and Test-Driven Development (TDD).

  • Manage and work within Git-based version control systems.

  • Troubleshoot and optimize database systems, including MS SQL, MySQL, and Sqlite.

  • Apply strong knowledge of networking protocols (TCP/IP, UDP, DNS, DHCP, SNMP) in application development and troubleshooting.

Required Skills and Qualifications

  • Minimum of 4 years' professional experience with C# and a deep understanding of the .NET framework.

  • Proficiency in both .NET Framework and .NET Core development.

  • Strong understanding of networking fundamentals including routing, DNS, DHCP, TCP, UDP, IP, and SNMP.

  • Hands-on experience with relational databases: MS SQL, MySQL, and Sqlite.

  • Experience working with Windows, MacOS, and Ubuntu operating systems, including troubleshooting .NET Core applications on Ubuntu.

  • Experience in cross-platform code signing (Windows, Linux, MacOS).

  • Scripting proficiency with Linux shell (Bash) and Windows PowerShell; knowledge of Python and Perl is a plus.

  • Solid foundation in Object-Oriented Programming (OOP) principles and design patterns.

  • Strong understanding and application of unit testing methodologies; experience with Test-Driven Development (TDD) is highly desirable.

  • Practical experience with Git and other version control systems.

Nice to Have

  • Familiarity with cloud environments and deployment pipelines.

  • Experience with containerization technologies like Docker.

  • Contributions to open-source projects or technical communities.

Join the Kaseya growth rocket ship and see how we are #ChangingLives !

Additional information
Kaseya provides equal employment opportunity to all employees and applicants without regard to race, religion, age, ancestry, gender, sex, sexual orientation, national origin, citizenship status, physical or mental disability, veteran status, marital status, or any other characteristic protected by applicable law.

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