Senior C Developer

Short facts about us:

• We are a global remote-first team of 80+ people on 2 continents and in 7 time zones.
• We have been protecting our clients since 2014.
• The company has raised over $10M in investments.
• More than 200 customers around the world, including Fortune 500, Nasdaq, and high-growth startups choose Wallarm to protect their API and web applications.
• The company passed Y Combinator, the most prestigious incubator in Silicon Valley, from which Dropbox, Stripe, Docker, etc. came out.

Our product:

Wallarm API security solutions provide proven performance to support innovative companies serving millions of users and billions of API requests per month. Hundreds of Security and DevOps teams globally use Wallarm daily to:

1. Discover. See every asset across your entire attack surface—from cloud environments to every API endpoint with auto-discovery capabilities.
2. Protect. A single suite that goes beyond OWASP Top 10 for full coverage for API specific threats, account takeover, malicious bots, L7 DDoS, and more.
3. Respond. Streamline incident response with complete visibility, smart triggers, and active threat verification.
4. Test. Automate security testing of your APIs and web assets. Prioritize remediation for every asset, in every environment.

Our technology stack:

• The system management interface is written in React and is a Single Page Application. Therefore, backend teams are not engaged in layout, but only API development.
• For backend development, we use Ruby and Golang
• Some components and modules are written in Python (Data Science/ML). But mostly Python is used by the QA department for developing integration autotests.
• Cloud deployed with Kubernetes/Helm and Terraform
• Main frameworks used: Ruby On Rails (API only)/Sinatra; gin for Golang
• Main databases used: PostgreSQL, Elasticsearch, Riak/S3, Tarantool, and Redis

About this opportunity:

We are looking for a person to join the "node" development team - the node for the primary analysis and filtering of HTTP requests. This part of the system is installed at the client and is a filter node. In fact, this is an analog of any modern next-generation WAF (NGWAF) with additional integration functionality with the Wallarm cloud. To do this, we need a C developer who will help us solve our problems faster and better.

What you will do:

• Development of new functionality and support of the existing one as part of the development of our software.
• Development of Nginx, Envoy, Tarantool, Kubernetes Nginx Ingress Controller modules.
• Development of a library for DPI, parsing, and metrics calculation.
• Bindings of libraries to different languages.

In this role you’ll need:

• At least 3 years of experience with the C programming language.
• Experience in developing code in the Linux OS environment.
• Experience with development tools and processes, open-source and version control.
• Understanding the principles of network protocols.
• Experience with Git.
• Good command of bash.
• Proficiency in debugging and profiling tools (gdb, Valgrind, sanitizers, heaptrack, perf).
• English at the level of reading technical documentation.

Additional advantages will be:

• Experience with Nginx;
• Knowledge of Ruby;
• Basic understanding of Kubernetes.

What we offer:

• Ability to work on a product that makes the Internet safer
• Completely remote work
• Competitive salary and bonuses
• 15 paid days off in addition to the vacation
• Flexible working hours
• Allocated budget for each employee for compensation:
  • Education (trainings, conferences, books, etc.)
  • Sport (Fitness, sports sections, equipment, etc.)
  • Paid medicine (including psychologists)
  • Vacation (tickets, hotels, tours, etc.)
  • Leisure (tickets to the theatre or cinema)
  • Workplace equipment