C# Developer / C# Developeress

Geneva

Product Development – Code Quality

Employee / Full-Time / On-Site

Who is Sonar?

Sonar helps prevent code quality and security issues from reaching production, amplifying developers' productivity in concert with AI assistants, and improving the developer experience with streamlined workflows. Sonar analyzes all code, regardless of the source—whether it be your internal team, generative AI, or third parties—resulting in more secure, reliable, and maintainable applications. Rooted in the open-source community, Sonar’s solutions support over 30 programming languages, frameworks, and infrastructure technologies. Today, Sonar is trusted by over 7 million developers and 400,000 organizations worldwide, including the Department of Defense, Microsoft, NASA, MasterCard, Siemens, and T-Mobile.

We believe in creating exceptional products, backed by dedicated internal teams and a strong culture. Our commitment to our company, our users, each other, and the open-source community drives us daily. We maintain high standards, holding each other accountable for acting with positivity, dedication, thoughtfulness, empathy, and passion.

Our decision-making is deliberate, with clarity of intention and a sense of urgency, moving forward decisively. We operate collectively as One Team to accomplish our goals.

Why You Should Apply:

At Sonar, we’re a group of brilliant, motivated, and driven professionals working tirelessly to empower developers to build better and faster. Our solutions continuously enhance code quality and security while reducing repetitive tasks for developers, allowing them to focus on what they love. We address not just the symptoms of problems—our approach targets the source for all code, be it developer-written, AI-generated, or from third parties.

With a dynamic culture boasting a global workforce and hub offices in the USA, Switzerland, the UK, Singapore, and Germany, we encourage team members to take pride in their work and feel energized by their peers. Our roots in the open-source community focus on a singular mission: supercharging developers to build better and faster.

The Impact You Will Have:

The Sonar Code Quality Team is seeking a passionate and innovative Software Engineer to join us. Our mission is to design and implement advanced solutions that automatically identify and prevent critical issues in source code, whether authored by developers or generated by AI agents.

This role offers the chance 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 connected to applied research. As a software engineer on our team, you will work at the intersection of cutting-edge technologies 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 scoping specifications, writing robust code and tests, conducting peer reviews, validating new features, and incorporating user feedback post-release.
• Deep Dive into Language: Regularly explore the intricacies of programming languages semantics, advancing our knowledge and enhancing our programming languages analyzers.
• Evolve Analyzer Intelligence: Influence how our analyzers interpret code by developing improved models and innovative new rules, enhancing the precision of our code detection capabilities.
• Contribute to Strategic Goals: Engage with various stakeholders to actively contribute to short-term objectives and 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 with a deep understanding of Computer Science fundamentals.
• Proven grasp of static analysis techniques is a plus, particularly as they apply 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.
• Open-minded with a 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 environment that values respect and kindness, embracing the right to fail and learn from mistakes. Great people make a great company; we equally value interpersonal skills alongside technical expertise and strive for a friendly atmosphere while maintaining passionate leadership in our domains.

We offer a flexible work policy that includes three days in-office and two work-from-home days each week for those located near our office locations. Some locations, such as Dubai, India, Japan, and Australia, operate fully remotely. At Sonar, we champion a growth mindset, encouraging continuous education considered critical to our success, as acquiring new skills is essential in our ever-changing industry.

As the leader in our field, our products and services reflect the strength of our internal teams. We prioritize transparency through regular meetings, cascading messages, and updates on our organization's growth and successes.

Benefits of Working With Sonar - Geneva:

• We encourage the use of our robust time-off policy, offering 28 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, equating to 13.5% to 15.5% of your base salary for savings, and an additional 2% for risk.
• Generous discretionary Company Growth Bonus, paid annually.
• Sustainable mobility options for commuting, including carpooling and reimbursement of 60% of the annual transportation subscription.
• Global workforce with employees in over 20 countries, representing more than 35 unique nationalities.
• Annual company kick-off event hosted at various global locations to build relationships and set goals.

We Value Diversity, Equity, and Inclusion:

At Sonar, we believe that diversity is our strength. We are a global company that values and respects diverse 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. We proudly uphold our status as an equal opportunity employer, welcoming all qualified applicants regardless of race, color, 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 successful results of a comprehensive background check and reference verification conducted before the start date.

Apply online using the form below. Only applications matching the job profile will be considered.