Full Stack Engineer (Java)

Sonar • Austin, TX

5d • Hybrid

About The Position

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:

As a full stack engineer at Sonar, you will deliver end‑to‑end product features across backend services and web frontends that directly improve key user and business outcomes. You will help evolve your squad’s architecture to ensure it remains reliable, performant, and secure as we scale. You will raise the engineering bar through high standards for code quality, automated testing, and delivery practices. You will operate as an AI-native engineer who uses AI tools programmatically - accelerating routine tasks while maintaining full ownership of design, correctness, and security.

Requirements

• 5+ years of experience building and operating web‑based products in production cloud environments.
• Strong backend skills in Java (our core backend language) or an alternative backend focused language, such as Go or Python.
• Experience designing, implementing and consuming HTTP APIs.
• Solid frontend experience with a modern JS/TS stack (e.g., React or similar), including component design, state management, and testing.
• Familiarity with databases and web infrastructure (relational storage, caching, messaging queues, REST/JSON, AuthN/Z).
• Experience architecting cloud-native applications.
• Hands-on experience with automated testing, CI/CD and observability practices.
• Experience evaluating and integrating AI‑assisted development tools into your workflow while maintaining high quality and security standards.
• Extensive hands-on experience with experimentation, incorporating customer feedback into the development cycle.
• Practical experience with distributed systems that serve millions of users.

Responsibilities

• Design and implement features across the stack: backend services and APIs, frontend components and flows, and the integration between them.
• Collaborate with Product Managers, UX designers, and other engineers to clarify problems, propose solutions, and break the work into incremental, shippable slices. As the work is done, you will also help raise awareness of problems across the team.
• Own the delivery lifecycle of your work: automated tests, CI pipelines, deployment, and follow‑up on metrics and production behavior.
• Use AI assistants pragmatically to speed up low‑level tasks (boilerplate, refactorings, test scaffolding) while keeping full responsibility for architecture and quality.
• Review code and participate in design discussions, providing clear and constructive feedback - including on AI‑generated code.
• Improve the systems and pipelines that allow AI-generated code to be safely integrated into production.
• Identify and tackle pragmatic refactoring opportunities and technical debt to improve maintainability, performance, or developer experience.
• Mentor teammates in both technical excellence and effective AI-native workflows.
• Share responsibility for service availability with your team, collaborate with customer facing teams to investigate issues, and participate in on call rotations.

Benefits

• Flexible comprehensive employee benefit package that is 90% paid by the company.
• We encourage usage of our robust time-off allocations.
• We offer an exciting 401(k) plan that has a 4% match, fully vested on day one of participation.
• Generous discretionary Company Growth Bonus, paid annually.
• Fully paid parking in the heart of downtown Austin, Texas.
• 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed