Software Engineer (Java)

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, MasterCard, 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. 

Why You Should Apply: 

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.

The Impact You Will Have:

Join us in shaping the future of SonarQube's on-premises platform, directly empowering over 10 million developers worldwide to write cleaner, more secure code. As a Backend Developer in our Platform Team, you will build and enhance critical services that ensure SonarQube's seamless installation, upgrade, and scalable operation for our global customer base.

You will play a pivotal role in delivering SonarQube releases on schedule, working with a diverse tech stack including Java, Spring, Tomcat, Databases, and ElasticSearch. Your expertise will be crucial in ensuring that all features developed by other squads are continuously integrated, providing essential guidance on testing and packaging. You will contribute to tackling key challenges such as scaling to meet growing demand and improving the overall developer experience for both our internal teams and external users.

Based in our Geneva office, you will be part of a collaborative, innovative, and fast-paced squad that thrives on technical excellence and ownership. You'll work alongside highly skilled engineers to simplify complex platform operations, ensuring reliability and performance for our open-source community of over 500,000 members and tens of thousands of corporate customers, including industry leaders like NASA, Novartis, Ubisoft, and Microsoft. If you are passionate about building robust, scalable backend systems and driving significant impact, we want you on our team.

• Develop and enhance core backend services for SonarQube's on-premises platform, focusing on seamless installation, upgrade, and scalable operations.
• Design and implement robust solutions using Java, Spring, PostgreSQL, and ElasticSearch, ensuring the stability and performance of our platform.
• Collaborate with other development squads to guide continuous integration, testing, and packaging, ensuring smooth feature releases for our on-premises users.
• Drive technical excellence and contribute to architectural decisions for the SonarQube on-premises platform, balancing immediate needs with long-term scalability and maintainability.
• Diagnose and resolve complex technical challenges related to platform stability, performance, and developer experience.

• Strong Java development skills with 6+ years of experience writing clean, maintainable, and scalable code.
• Deep understanding of system architecture, design patterns, and performance optimization.
• Experience with databases (e.g., PostgreSQL) and writing efficient SQL queries.
• Commitment to code quality, with hands-on experience in automated testing and CI/CD practices.
• Growth mindset and experience in mentoring, coaching, and elevating your teammates.
• Proactive problem-solving attitude, taking ownership of initiatives and driving them to completion.
• Experience with container technologies like Docker or Kubernetes, and a good understanding of infrastructure as code (IaC) principles are a plus.
• You take full responsibility for complex challenges, driving solutions from inception to production and validating them with customer feedback.
• You thrive in a fast-paced, dynamic environment, tackling complexity with a structured and solution-oriented mindset.
• You validate assumptions, establish facts to guide better decisions, and proactively seek and provide feedback for growth.
• You tailor your message to your audience, inspire commitment, prioritize impact, and drive efficiency in collaboration.

• 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!). 
• Great people make a great company. We value people skills as much as technical skills and strive to keep things friendly while still being passionate leaders in our domains. 
• We have a flexible work policy that includes 3 days in-office and 2 days work-from-home each week for those located near our office locations; some locations such as Dubai, India, Japan and Australia operate fully remotely.
• We have a growth mindset. We love learning and believe continuous education is critical to our success. In an ever-changing industry, new skills are necessary, and we're happy to help our team acquire them.
• As the leader in our field, our products and services are as strong as our internal team members.
• We embrace transparency with regular meetings, cascading messages and updates on the growth and success of our organization.

• We encourage usage of our robust time-off allocations with 27 PTO days for our employees based out of the Geneva region, plus additional days based on seniority and circumstances.
• We contribute 60% of the total cost for your pension; 13.5% to 15.5% of your base salary for savings; 2% for risk.
• Generous discretionary Company Growth Bonus, paid annually.  
• Commuting:Sustainable mobility options, including carpooling and the refund of 60% of the annual transportation subscription.
• Global workforce with employees in 20+ countries representing 35+ unique nationalities.
• We have an annual kick-off somewhere in the world where we meet to build relationships and goals for the company.

We Value Diversity, Equity, and Inclusion:

At Sonar, we believe that our diversity is our strength. We are a global company that values and respects 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. We are proud to be an equal opportunity employer and welcome 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 precise results of a comprehensive background check and reference verification conducted before the start date.

Applications that are submitted through agencies or third party recruiters will not be considered.