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# Senior AI Engineer - Stealth Mode Start-up - up to £150k - London

- **Company:** Oliver Bernard Ltd
- **Location:** Greater London, UK
- **Experience:** Expert
- **Salary:** £150,000.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Large Language Models, Model Validation
- **Published:** September 9, 2026
- **Apply:** https://www.collegerecruiter.com/job/2856358035-senior-ai-engineer-stealth-mode-start-up-up-to-150k-london

## About the Role

* Strong experience working with LLMs and/or foundation models
 * Experience with training, fine-tuning, RL or post-training
 * Background in model evaluation and optimisation
 * Experience building AI agents / agentic systems
 * Strong software engineering fundamentals



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