Job Detail

The impact you can have

The SonarSource Languages Team is looking for a passionate C# Developer to develop the most advanced .NET static analyzers in the world.

SonarSource’s C# code analyzer is designed to fulfill the need of any C# developer: spotting tricky code quality and security issues as fast as possible while generating very little noise. Null dereferences, undisposed resources, dead code, logic flow errors … are some examples of those quality issues. The analyzer is open-source, built on top of the Roslyn compiler framework and can run inside the IDE as well as on CI systems.

By joining our team, you will be part of an autonomous team without a manager. You will choose what to work on. Within our team, you will be supported by great colleagues who are always willing to discuss difficult technical problems. You will be able to grow your skills and focus on what matters.

On a daily basis, you will

• Develop new and maintain existing features for the code analyzers for C# and VB.NET


• Evolve the way our analyzers understand code by creating ever better models and develop new rules on top of them


• Contribute to code quality of the hundreds of thousands of developers around the world


• Contribute to open source: develop open source products and contribute back to libraries used by your products


• Define the team’s short and long term goals


• Be in a team where continuous integration is not just a buzzword and which really cares to provide the best user experience

The skills you will demonstrate

• Ability to develop in C# with clean code


• Good understanding of the .NET Framework and the .NET platform


• Excellent engineering skills and good Computer Science fundamentals


• Fluency in source code quality: tests (unit and functional), CI/CD


• Curious and eager to learn, with a positive attitude


• Comfortable in dealing with change and complexity


• Bold and self-confident to challenge the status quo as well as be challenged


• Wanting to face challenging tasks and to have fun resolving them


• Compiler frontend knowledge is not required; you will learn it while working at SonarSource

We can consider remote workers on a case-by-case basis. We normally consider only European time zones for remote work.

How to perform during interviews

If you want to have an overview of the hiring process and maximize your chances to pass, feel free to check our Interview Preparation Guide!

Words from the team

The Languages Team's mission is to build state-of-the-art static analyzers used by millions of developers.

We want to help developers to write better and safer code by spotting issues of several kinds for all major programming languages:

• Maintainability issues: code smells


• Reliability issues: bugs


• Security issues: vulnerabilities and security hotspots

Ultimately, we target all issues which can be found through static analysis, even if they require a very deep understanding of the code. The sky's the limit! We believe that, as a side effect, our analyzers should educate developers about coding best practices thanks to the rule descriptions and to the raised issues.

From a SonarSource perspective, the mission of the Languages Team is to generate the data that will provide the most valuable feedback for users of SonarSource’s products.

Why you will love it here

• Safe work culture:
  We value respect, kindness, and the right to fail.


• Flexible hours:
  We schedule our days in order to be effective at work, while also being able to enjoy life’s important moments.


• Great people:
  We value people skills as much as technical skills and strive to keep things friendly and laid back. Still, that does not prevent us to be passionate leaders in our domains. Our 200+ SonarSourcers from 27 different nationalities can relate!


• Work-life balance:
  Keeping a healthy work-life balance is important. This is why some people prefer working some days from home.


• Always keep learning:
  In an ever-changing industry, learning new skills is a must, and we're happy to help our team to acquire them.

What we do

SonarSource was started by a team of developers that wanted to change the way code is built in an agile development process. The company was created to develop the open-source tool SonarQube, which is now the standard in code quality management with over 190,000 instances deployed today. Every day we are focused on solving developers’ next big problem.

Who we are

At SonarSource we believe in people, excellence, and delivery. We’re a team of problem solvers and overachievers who seek out others who are also passionate and relentless in their respective missions. We want to work with people who are ready to fasten their seat belts and be part of an incredible ride. We work hard not because we’re told to, but because we genuinely love what we do and do what we love. If there’s one main message we want you to remember about us, it’s that we push others to be best in class at whatever they do: choose your battle, innovate, take risks, and lead change. Join us; we’ll be smarter and stronger together.

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