Oliver Bernard
AI Engineer (Up to £220k + equity)
How your CV stacks up
Upload your CV to see how well it fits this job role
?%
Staff / Principal AI Engineer, AI Platform
Up to £220k + Equity | London, Hybrid.
We’re working with a well-funded frontier AI company building the infrastructure used to train and evaluate increasingly capable AI agents.
They create interactive software environments where agents can complete tasks, receive feedback and improve through experience. The platform is already being used in real training and research workflows with leading AI labs.
They’re now scaling the core AI platform and hiring senior ICs to own major areas across model improvement, post-training, RL, evaluations and agent infrastructure.
Role
A deeply hands-on Staff / Principal position with significant technical ownership. You’ll define research and engineering direction while staying close to models, experiments and production systems.
Reasons to use Rodeo
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
It searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
Responsibilities
- Own major AI initiatives from research question through to production
- Lead work across post-training, fine-tuning, RL and model evaluation
- Build agent harnesses, sandboxed execution environments and feedback systems
- Develop training-data, synthetic-data and curation pipelines
- Design experiments, evaluation frameworks and measurable success criteria
- Turn successful research into scalable, observable production systems
Requirements
- Strong hands-on experience training, fine-tuning or post-training ML models
- Deep understanding of modern ML, RL, evaluation and model optimisation
- Experience building agentic systems or AI infrastructure
- Strong software engineering fundamentals and production-quality Python
- Track record owning technically ambiguous, high-impact projects
- Staff / Principal-level technical leadership while remaining an IC
Get help with your application
Your very own career expert that helps elevate your application to the next level.
Tech
Python, LLMs, RL, post-training, model evaluation, agents, synthetic data, distributed AI systems
Location
London, typically 2 days per week.
Package
Up to £220,000 base depending on experience, plus meaningful equity.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
Skills
Location