C# Developer / C# Developeress

Geneva

Product Development – Code Quality

Employee / Full-Time / On-Site

Who is Sonar?

Sonar prevents code quality and code security issues from impacting production, amplifying developers' productivity in unison with AI assistants while enhancing the developer experience through streamlined workflows. Our platform analyzes all code—whether written by your internal team, generated by AI, or sourced from third parties—resulting in more secure, reliable, and maintainable applications. With deep roots in the open-source community, Sonar supports over 30 programming languages, frameworks, and infrastructure technologies. Currently, our solutions are utilized by over 7 million developers and 400,000 organizations worldwide, including the DoD, Microsoft, NASA, MasterCard, Siemens, and T-Mobile.

At Sonar, we passionately develop great products supported by exceptional internal teams and a robust company culture. Our commitment to our company, users, each other, and the open-source community is unwavering. We hold ourselves to high standards and are accountable for embodying positivity, dedication, thoughtfulness, empathy, and passion in our daily operations.

Our approach to decision-making is deliberate, characterized by clarity of intention, and powered by an extreme sense of urgency that propels us forward rapidly. We prioritize effectiveness and operational efficiency, collaborating as One Team to achieve our objectives.

At Sonar, CODE is more than an acronym—it’s a mindset that defines our daily operations.

Why You Should Apply:

At Sonar, we gather a group of brilliant, motivated, and driven professionals dedicated to empowering developers to build better, faster. Our solutions continuously enhance code quality and security while reducing developer toil, allowing programmers to focus on what they love most. We don't just address the symptoms of issues—we tackle them at their source, across all types of code.

Our vibrant culture spans employees worldwide, with main offices in the USA, Switzerland, the UK, Singapore, and Germany. We believe that team members should come to work every day proud of the product they contribute to, energized by their peers, and engaged in a mission to supercharge developers to build better, faster.

The Impact You Will Have:

The Sonar Code Quality Team is searching for a passionate and innovative Software Engineer to join our ranks. Our mission is to design and implement advanced solutions that autonomously identify and prevent critical issues in source code, irrespective of whether the code is developer-written or AI-generated.

This role provides an exceptional opportunity to leverage your expertise in static analysis within an innovative environment, driving the integration of Artificial Intelligence (AI) and Large Language Model (LLM) techniques closely tied to applied research.

As a software engineer on our team, you will work at the cutting edge of technology and programming language semantics, enabling us to detect complex issues that often elude both human review and automated systems.

What You Will Do Daily:

• Contribute to End-to-End Delivery: Collaborate with Product Managers, engineering teams, and research teams to specify and implement sophisticated code analysis and bug detection capabilities in our products. This includes defining specifications, writing robust code and tests, conducting peer reviews, validating new features, and responding to user feedback after release.
• Deep Dive into Language: Regularly explore the intricacies of programming language semantics, advancing our knowledge and enhancing our programming language analyzers.
• Evolve Analyzer Intelligence: Influence how our analyzers interpret code by developing improved models and innovative new rules, thereby enhancing the precision of our code detection capabilities.
• Contribute to Strategic Goals: Engage with various stakeholders to actively contribute to short-term objectives and the long-term strategic vision for your squad.

The Experience You Will Need:

• 2+ years of C# development experience.
• Good understanding of the .NET ecosystem.
• Strong engineering skills and a deep understanding of Computer Science fundamentals.
• Proven grasp of static analysis techniques is a plus, as applied to challenging code analysis and bug detection problems.
• Ability to learn quickly.
• Experience or curiosity about Large Language Models (LLMs), Machine Learning (ML), and Artificial Intelligence (AI) is highly valued.
• An open-minded and positive can-do attitude.
• Comfortable dealing with change and complexity.
• Compiler knowledge is not required; you will learn it while working at Sonar. Candidates to be considered must be located near our Geneva or Bochum offices or be open to relocating prior to starting.

Why You Will Love It Here:

Our culture and mission set us apart. We foster a dynamic work culture grounded in respect and kindness, embracing the right to fail and get back up again!

We believe that great people build great companies. Thus, we value people skills as highly as technical skills and strive to maintain a friendly atmosphere while being passionate leaders in our respective domains.

Our flexible work policy includes 3 days on-site and 2 work-from-home days each week for those near our office locations. Some offices, such as those in Dubai, India, Japan, and Australia, operate fully remotely.

We cultivate a growth mindset and prioritize continuous learning, believing it is vital to our success in an ever-evolving industry. We're committed to helping our team acquire new skills.

As leaders in our field, our products and services are as strong as our internal team members.

Operating with transparency, we hold regular meetings and provide updates on the growth and success of our organization.

Benefits of Working With Sonar - Geneva:

• We encourage the use of our substantial time-off allocations, offering 27 PTO days for our Geneva-based employees, with additional days based on seniority and circumstances.
• We contribute 60% of the total cost for your pension, at rates of 13.5% to 15.5% of your base salary for savings, plus 2% for risk.
• Annual discretionary Company Growth Bonus.
• Sustainable commuting options, including carpooling and reimbursement for 60% of the annual transportation subscription.
• A global workforce with employees in over 20 countries, representing more than 35 unique nationalities.
• Annual company-wide kick-off event in various global locations to build relationships and set goals.

We Value Diversity, Equity, and Inclusion:

At Sonar, we believe that diversity is our strength. As a global company, we value and respect different backgrounds, perspectives, and cultures. We are committed to fostering a diverse and inclusive work environment where everyone feels valued and empowered to contribute their best.

As an equal opportunity employer, we welcome all qualified applicants regardless of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

Apply online using the form below.

Only applications matching the job profile will be considered.