C# Developer

Posted 20 Hours Ago
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Geneva
Hybrid
Entry level
Cloud • Information Technology • Security • Software
Sonar is committed to enabling developers and organizations to build better code for better software.
The Role
As a C# Developer at Sonar, you will develop and maintain features for C# and VB.NET code analyzers, enhance code understanding models, contribute to open-source products, and engage in setting team goals while promoting code quality.
Summary Generated by Built In

Why should I Apply:


At Sonar, we’re a group of brilliant, motivated, and driven professionals working hard to help organizations build responsible, secure, high-quality code quickly and systematically. We build solutions that don’t just solve symptoms of problems – we fix problems at the source – source code, to be specific.


We have a dynamic culture with employees worldwide and hub offices in the USA, Switzerland, the UK, Singapore, and Germany. We believe team members should have the opportunity to come to work every day, work on a product they are proud of, love what they do, and feel energized by their peers. With our roots deep in the open source community, we’re all about the mission: provide solutions that deliver Clean Code.


The impact you can have


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


Sonar C# code analyzer is designed to fulfil the need of any C# developer: spotting tricky code quality and security issues as fast as possible while generating very little noise. Null dereference, undisposed resources, dead code, and 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. 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 developing new rules on top of them.
  • Contribute to the 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 code quality 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 ecosystem.
  • 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 changes 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 Sonar.

Why you will love it here:


Our culture and mission set us apart. We have a dynamic work culture that values respect and kindness – and embraces the right to fail (and get right back up again!). We believe that the best idea wins and everyone has a voice.

We believe that great people make a great company. We value people skills as much as technical skills and strive to keep things friendly and laid-back while still being passionate leaders in our domains. Our 550+ SonarSourcers from 33 different nationalities can relate!

We embrace work-life balance. It is important to maintain a healthy work-life balance. This is why we have a flexible work policy that includes remote and in-office hybrid work (minimum three days a week in the office - Monday/Tuesday/Thursday).

We have a growth mindset. We love to learn and believe that continuous education is critical to our success. In an ever-changing industry, new skills are a must, and we're happy to help our team acquire them.



We prioritize Diversity, Equity, and Inclusion:


At Sonar, we are a global workforce and recognize the value of different backgrounds, and global cultures.


We are committed to creating a diverse work environment and are proud to be an equal-opportunity employer. All qualified applicants will be considered for employment without regard to race, colour, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.


All offers of employment at Sonar are contingent upon the clear results of a comprehensive background check conducted prior to the start date.

Top Skills

C#

What the Team is Saying

Will
Brian
London
Kim
Elizabeth
Varsha
Arden
Jeff
Max Steinberger
Patrick McKinney
The Company
HQ: Geneva
597 Employees
Hybrid Workplace
Year Founded: 2008

What We Do

Software-driven digital innovation is essential for competing in today's market, and the foundation of this innovation is code. However, there are widespread cracks in this foundation – lines of bad, insecure, and poorly written code – that manifests into tech debt, security incidents, and availability issues. With Sonar, developers and organizations are empowered to create quality, secure code confidently, whether written by humans or generated with AI.

The Sonar solution, SonarQube, helps prevent code quality and security issues from reaching production, amplifies developers' productivity in concert with AI assistants, and improves the developer experience with streamlined workflows. Sonar analyzes all code, regardless of who writes it—your internal team or genAI—resulting in more secure, reliable, and maintainable software.

At Sonar, we are driven by a deep belief in our people, a commitment to excellence, and an unwavering dedication to delivery. We operate as a united group where our collective success is the sum of each individual's contributions. Our company culture is driven by the values of CODE: Committed, Obsessed, Deliberate & Effective. This mindset reflects our culture of creativity, collaboration, and pride in the work we do.

Rooted in the open-source community, Sonar’s solutions support over 30 programming languages, frameworks, and infrastructure technologies. Today, Sonar is used by 7M+ developers and 400K organizations worldwide, including the DoD, Microsoft, NASA, MasterCard, Siemens, and T-Mobile.

Sonar is headquartered in Geneva, Switzerland with additional offices in Austin, Texas; Annecy, France; Bochum, Germany, London, England; and Singapore. The company is rapidly growing with over 600 employees!

Join us in our mission to solve the trillion-dollar challenge of bad code!

Why Work With Us

We are a product-first company, all while maintaining a people-first culture. Every employee has the opportunity to grow and learn. We promote from within, provide regular feedback and professional development opportunities, value the right to fail along with respect and kindness and work with team members to achieve their full potential.

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Sonar Offices

Hybrid Workspace

Employees engage in a combination of remote and on-site work.

At Sonar, we require employees to come into the office 3 days/week.

Typical time on-site: 3 days a week
HQGeneva Office (HQ)
Singapore Office
Annecy Office
Austin, TX office
Bochum Office
London Office
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