Senior Frontend Engineer

Who is Sonar?

Sonar helps prevent code quality and code 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, genAI, 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 used by +7M developers and 400K organizations worldwide, including the DoD, Microsoft, NASA, Master Card, Siemens, and T-Mobile.

We believe in developing great products that are supported by great internal teams and a strong culture. We are highly committed to and obsessed with the company, users, each other, and our open source community. We have high standards and hold each other accountable for acting with positivity, dedication, thoughtfulness, empathy, and passion daily.

We are deliberate with our decisions with high clarity of intention. At the same time, we feel extreme urgency and move forward quickly.

And lastly, we are highly effective and operationally efficient
. We operate collectively as One Team to accomplish our goals.

At Sonar, CODE is more than just an acronym – it's a mindset that defines daily operations.

At Sonar, we’re a group of brilliant, motivated, and driven professionals working hard to help supercharge developers to build better, faster. Sonar helps to continuously improve code quality and code security while reducing developer toil. This means that developers can focus on doing more of what they love and less of what they don’t. Our solutions don’t just solve symptoms of problems – we help fix issues at the source – for all code, whether it's developer-written, AI-generated, or from third parties.

We have a dynamic culture with employees worldwide and hub offices in the USA, Switzerland, the UK, Singapore, and Germany. Team members should be able 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: supercharge developers to build better, faster.

By joining Sonar, you will play a crucial role in enhancing Sonar Qube Cloud and Sonar Qube Server. You will provide teams and developers around the world with an exceptional experience, empowering them to develop better software.

As part of the role, you will join an on‑call rotation, ensuring that critical system issues are promptly addressed, thereby minimizing downtime and maintaining a seamless experience for our users.

• Collaborate with Product Managers and UX designers to specify and design new features.
• Participate in sprints with your team to deliver new features with a focus on the end user.
• Maintain and enhance existing features, incorporating feedback from colleagues and the community.
• Write comprehensive unit and integration tests to ensure code quality.
• Conduct thorough code reviews and provide meaningful feedback to peers.
• Contribute to the team's growth by improving tools and processes and by mentoring other engineers.
• Engage with the community on product forums to offer support and gather insights.
• Help solve production problems related to the team’s features.

• 5+ years of experience as a Front End Software Engineer.
• 1+ year of experience as a Staff Engineer or equivalent level.
• Excellent engineering skills and a good understanding of Computer Science fundamentals.
• Type Script Development:
  Demonstrated expertise in Type Script, including a good understanding of its ecosystem and tooling.
• Modern Front‑End Frameworks:
  Proficiency with React (preferred) or other modern front‑end frameworks, ensuring efficient and scalable user interfaces.
• Leadership: you’re able to take initiative and bring a subject to completion with little to no supervision. You have experience supporting and mentoring other team members.
• Source Code Quality:
  Commitment to high‑quality…