Full Stack Engineer (Java)

What You Will Do Daily:

• 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.

The Experience You Will Need:

• 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.
 
How you work:
 
• Ownership and accountability: You feel responsible for the long‑term health and correctness of what you ship, whether written by you or generated with AI assistance.
• Collaborative by default: You communicate with clarity, seek alignment early, and view candid feedback as a tool for growth.
• AI‑native mindset: You treat AI tools as collaborators—not oracles—validating their output, understanding their limits, and using them to focus on higher‑value design and problem‑solving.
• Pragmatic and incremental: You balance architectural excellence with the need to deliver value quickly and iteratively.

Why You Will Love It Here:

• 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.
 

Benefits of Working With Sonar:

• 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.