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AI Researcher - Post-Training

SonarSource · London, United Kingdom

Confidence
Medium confidence
Posted
5 Aug 2026
First seen
24 Oct 2026
Last checked

Evidence

Medium confidence

SonarSource is on the UK Home Office register. The posting doesn’t mention visas.

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UK Home Office Register of Licensed Sponsors

Listed as SonarSource UK LTD. London · Skilled Worker route · A rating. Snapshot 26 Oct 2026.

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Job posting

Doesn’t mention visas or relocation.

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Seen on the job board

First seen 24 Oct 2026. We check every day and remove closed roles.

Where you apply

jobs.lever.co/sonarsource

SonarSource’s job board, hosted by Lever.

Being on the register means SonarSource can sponsor visas. It doesn’t confirm this role qualifies, so check with the recruiter.

About the role

Who is Sonar? Sonar enables organizations to ship agentic code with confidence. Code creation is abundant, but confidence is scarce. Our core platform, SonarQube, verifies over 750 billion lines of code every day, delivering agentic verification and governance for all code. Trusted by more than 7 million developers and 75% of the Fortune 100, including teams at Nvidia, ServiceNow, Booking.

com, Goldman Sachs, AstraZeneca, and Ford Motor Company, Sonar enables organizations to reduce outages, improve security, and lower the cost and risk of agentic software development. Founded in Geneva and now headquartered in Austin, Texas, Sonar has a global team working across offices and hubs, including Silicon Valley, London, Bochum, Barcelona, Singapore, Tokyo, and the Washington, D.

C. area. At Sonar, we’re enabling enterprises to build agentic software factories that can move quickly while maintaining the control, consistency and evidence required to ship with confidence. Position description At Sonar, we are seeking an ambitious senior researcher to join our cross-disciplinary team, innovating and developing the next generation of solutions to build enterprise-grade coding agents and models. You will harness Sonar’s deep experience in static analysis, and combine it with your experience and leading techniques in large language model post-training.

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Apply on SonarSource’s site

Opens jobs.lever.co/sonarsource