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Agentic Software Engineer (f/m/d)

SonarSource -
Bochum

Jetzt bewerben

Details zur Stelle

Vollzeit
80.000 € – 110.000 € pro Jahr
vor 9 Tagen

Qualifikationen

Master
GitHub

Vollständige Stellenbeschreibung

Who is Sonar?

Sonar is driving the future of agent-centric software development. As the leader in AI code review and verification, 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.

The Impact You Will Have:

As an Agentic Software Engineer on the Platform Architecture squad, you will build the multi-agent systems that autonomously refactor and modernize Sonar's own codebase — starting with one of our biggest technical bets: unifying SonarQube Cloud (SQC) and SonarQube Server (SQS) onto a single, portable architecture ("build once, deploy twice"). You will:

Design and build agentic refactoring pipelines that can safely extract a domain's logic from our existing SQS/SQC codebases and re-platform it onto our Unified Core (a hexagonal "capability-core + adapters" architecture), with minimal human oversight.
Define the guardrails that make autonomous refactoring safe at scale — verification gates, automated test generation, static analysis, and rollback strategies that let agents move fast without breaking production code relied on by 7M+ developers.
Prove the approach on real migrations — Micronaut-to-Spring conversions, Lambda-to-container consolidations, API convergence (consolidating overlapping API surfaces onto shared contracts), and strangler-fig domain extractions — before scaling it into a repeatable, multi-agent "coding squad" capable of tackling many domains in parallel.
Stay hands-on in the Java/Spring codebase often enough to critically review what the agents produce, recognize when a refactor is architecturally wrong, and correct the agentic loop that generated it — not just the output.

What You Will Do

Spend the majority of your time (roughly 70%) designing, building, and iterating on agentic tooling: orchestration, tool-use, context management, and evaluation harnesses for autonomous code-modification agents.
Build and refine the verification layer that gates what agents are allowed to ship — automated test generation, regression detection, static analysis (using our own SonarQube), and human-in-the-loop checkpoints where warranted.
Spend the remainder of your time (roughly 30%) hands-on in our Java/Spring codebase: reviewing agent-generated pull requests, fixing what they get wrong, and feeding those lessons back into the tooling.
Partner closely with the Server, Cloud Platform, and value-stream squads whose domains you're migrating — earning their trust and buy-in matters as much as the code itself.
Contribute to the Architecture Decision Records (ADRs) and standards that govern how our platform evolves.
Track and evaluate emerging agent frameworks and techniques, bringing back what's genuinely useful — as distinct from what's just hype — for accelerating engineering across Sonar.

Experience and qualifications

Hands-on experience building or operating multi-agent or LLM-agent systems in a real production setting — not just prompting a coding assistant, but designing the orchestration, tool-use, and guardrails around autonomous agents.
Experience building evaluation or verification systems for AI-generated changes: automated testing, static analysis, regression detection, or comparable safety nets for code you didn't personally write.
Strong software engineering fundamentals in Java and Spring (or a comparable JVM/enterprise stack) — enough to read a large, mature codebase critically and tell good architecture from bad.
A track record of owning complex, ambiguous technical problems independently and driving them to resolution — this is an R&D-flavored role inside a production platform team, and you'll be shaping the playbook, not following one.
Experience influencing engineers and squads you don't manage — the migrations you'll enable depend on their trust as much as on your code.

Additional comments

This role is based in Bochum, Germany. We are unable to consider candidates unwilling to be in Bochum, but we are willing to relocate the right candidate.

Benefits

Pension Scheme: 1st Pillar (Unterstützungskasse): Automatic, financed by Sonar, 3% of gross salary, an additional benefit in addition to your salary.
Pension Scheme:2nd Pillar (bAV): Voluntary, 15% contribution by Sonar from social security savings.
We encourage usage of our robust time-off allocations with 28 PTO days plus additional days based on seniority and circumstances.
Sonar recognizes holidays on working calendar days. If the holiday date occurs on a Saturday, we will recognize the day on the preceding Friday. If the holiday date occurs on a Sunday, we will recognize the day on the following Monday.
Public transport reimbursement of 60% for annual subscription.
Generous discretionary Company Growth Bonus, paid annually.
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.

Salary range:

€80,000 - €110,000 a year

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.

Jetzt bewerben

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Ich möchte aktuelle Job-E-Mails für Stellen als software developer in essen, nw erhalten

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What You Will Do

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Benefits

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