FullStack Engineer

Sonar; Singapore; On-site; SGD 120,000 - 180,000; Full time

Benefits offered by this job

Relocation assistance

Job summary

Sonar, a leader in AI code verification and governance, seeks a Software Engineer to develop, deploy, and maintain scalable web apps that integrate with advanced AI models and agentic systems. You will collaborate with engineers, designers and researchers to deliver high-quality solutions that enable developers to innovate with confidence.

You will design 0-to-1 applications for AI-powered solutions, build RESTful APIs, and ensure performance, scalability, and robust testing.

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related field.
• Experience working with Agentic technologies (e.g. Codex, Claude, CoPilot)
• Experience in building web applications and designing and integrating RESTful APIs.
• Experience in developing using Java Spring framework or similar
• Experience developing in Agile practices and principles (Scrum/Kanban)
• Knowledge of containerization and orchestration technologies, i.e Docker/Kubernetes.
• Experience with CI/CD pipelines for automated deployments.
• Excellent debugging, optimization skills, communication, and teamwork skills.

Responsibilities

• Design, develop, and maintain AI-powered applications with scalability and cost efficiency.
• Participate in all aspects of agile software development, from design to deployment.
• Build and integrate RESTful APIs to support dynamic web and cloud applications.
• Develop scalable backend services and databases to enhance performance.
• Architect end-to-end systems optimized for speed and scale.
• Ensure responsive design and seamless user experience.
• Follow TDD with unit and integration tests; incorporate stakeholder feedback.
• Participate in code reviews and provide constructive feedback.

Skills

Agile practices

Debugging

Communication

Teamwork

Problem solving

Education

Bachelor's degree in Computer Science, Engineering, or related field

Tools

Java Spring

Docker

Kubernetes

RESTful APIs

CI/CD

Claude Codex Copilot

Job description

Who is Sonar?

Sonar is driving the future of agent-centric software development. As the leader in AI code verification and governance, we solve a critical problem: ensuring that software generated by AI-assisted developers or autonomous agents is reliable, secure, and maintainable. Integrating seamlessly with Claude Code, Codex, Cursor, GitHub Copilot, Gemini, and Devin, we help over 75% of the Fortune 100 build trusted, reliable, compliant software. Customers who use Sonar are 44% less likely to report an outage due to AI-generated code. We believe code verification is the critical missing link in the Agent-Centric Development Cycle (AC/DC). Industry giants like Nvidia, ServiceNow,Booking.com, Goldman Sachs, AstraZeneca, and Ford Motor Company count on us to provide independent, explainable, consistent review and governance of their AI-generated code via products like:

• SonarQube: The world’s leading AI code review and verification platform.
• SonarQube Foundation Agent: Currently topping the leaderboards for agentic software repair.
• SonarSweep & Sonar Context Augmentation: Providing the enterprise-grade context and constraints agents need to be truly effective.

Our team operates across global hubs in Austin, Bochum, Dubai, Geneva, London, Singapore, Tokyo, and Washington D.C. We move with a mindset we call CODE:

• Committed to our customers and community.
• Obsessed with quality.
• Deliberate in our decisions.
• Effective as one team.

With over $400M in revenue and profitable, fast-paced growth, we are building the backbone of the AI software revolution. If you’re hungry to have an impact, want to build at a fast pace, and ready to work at the forefront of AI, we want to hear from you.

Position description

You will be responsible for developing, deploying, and maintaining robust and scalable web applications that integrate seamlessly with our advanced AI models and agentic systems. You will work collaboratively with our software engineers, designers and researchers to deliver high-quality solutions. Your work will directly impact the efficiency and effectiveness of our AI products, enabling developers to spend less time fixing issues and more time innovating. You will contribute to the creation of scalable, reliable, and performant solutions that integrate seamlessly with our existing infrastructure.

What You Will Do

• Design, develop, and maintain 0-to-1 applications for AI-powered solutions focusing on automation, high performance, scalability, and cost efficiency.
• Participate in all aspects of agile software development, from design to deployment.
• Build and integrate RESTful APIs to support dynamic web and cloud applications.
• Develop scalable backend services and databases to enhance application performance.
• Architect and design end-to-end systems optimized for speed and scale.
• Ensure responsive design and seamless user experience
• Maintain best practices by following TDD and ensuring unit/integration tests are synced
• Debug and troubleshoot reported issues and incorporate feedback from other stakeholders
• Participate in code reviews and provide constructive feedback to other developers

Experience And Qualifications

• Bachelor’s degree (or equivalent) in Computer Science, Engineering, or related field.
• At least 3 years of experience as a Software Engineer or in a similar role.
• Experience working with Agentic technologies (e.g. Codex, Claude, CoPilot)
• Experience in building web applications and designing and integrating RESTful APIs.
• Experience in developing using Java Spring framework or similar
• Experience developing in Agile practices and principles (Scrum/Kanban)
• Knowledge of containerization and orchestration technologies, i.e Docker/Kubernetes.
• Experience with CI/CD pipelines for automated deployments.
• Excellent debugging, optimization skills, communication, and teamwork skills.

In-office culture

We're intentional about this. We believe the best teams are built in the room together. Three anchor days - Mondays, Tuesdays, and Thursdays - create the collaboration rhythm that makes a hub office worth having. Candidates need to be genuinely based in the location the role is posted - if that’s not where you are today, we’re happy to support relocation for the right person.

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.

If you need any accommodation, please reach out to us at [email protected] .

All offers of employment at Sonar are contingent upon the 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.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.