Research Engineers (LLMs / Conversational AI) – London | Up to £300k Base + Equity

I’m working with a hyper-growth Conversational AI unicorn that’s redefining how humans interact with machines.

• $250M Series D
• $4B+ valuation

They’re now launching a London hub and building out a Core Research Engineering team to push the boundaries of multi-modal AI.

What you’ll be working on

• Instruction following, retrieval, memory & long-horizon reasoning
• Post-training and optimisation of LLMs
• Building end-to-end ML pipelines for production
• Improving quality, efficiency, and user experience at scale
• Turning cutting-edge research into real-world systems

What they’re looking for

• Strong ML/AI fundamentals (LLMs, deep learning, NLP)
• Experience building and deploying models in production
• Ability to take ambiguous problems → structured solutions
• Research mindset with strong engineering execution

What’s on offer

• Up to £300,000 base
• Significant equity (team members already seeing 5x+ returns)
• London (onsite)

This is a rare chance to join a frontier AI company at a scale-up inflection point, with real ownership, real impact, and serious upside.