AI Researcher - Post-Training at Sonar
Geneva
—
Aug 4, 2026
Geneva
Sep 24, 2026
What this job asks for AI summary
A senior research role at Sonar's Geneva hub focused on LLM post-training for enterprise coding agents. The researcher will design and run experiments, build prototypes, and help translate research findings into production-grade products that enable customers to fine-tune models for agentic software development. The position sits within a cross-disciplinary team combining static analysis expertise with modern ML techniques.
Senior level · 4+ years · Master's required · Full-time
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How this req sits in the market our data
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $122,874 (middle half $87,544–$162,374).
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Aug 6, 2026. It is a model, not a headcount.
Why we read it this way (6)
This role is based in Geneva, Switzerland — not a US location. US compensation benchmarks do not apply.
The degree requirement is stated as 'Master's or PhD'; Master's is treated as the minimum hard gate. A PhD is not required.
The 4+ years of industry experience in machine learning is the stated role-level experience gate.
Rust and the listed SonarQube flagship languages (C#, C++, JS/TS, Java) are explicitly called out as a plus, so they are listed as preferred.
Policy optimization algorithms are listed with GRPO and PPO as examples; PPO is used as the primary skill name with GRPO as an alternative since both are named interchangeable examples of the same requirement.
The SOC classification is a judgement call: the role is primarily ML research (post-training, RL, fine-tuning) which maps to Data Scientists (15-2051), but the strong software engineering and product-delivery emphasis could support Software Developers (15-1252) as a runner-up.
Read the full posting
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