AI Engineer - Hedge Fund - Up to £250k TC

You are building AI infrastructure at one of the fastest growing hedge funds in the world. This is a Millennium spin-out that launched in 2014 and has grown to $17B AUM with 300 people globally, 100 of them based in London. They are now expanding aggressively, with plans to add around 80 people over the next couple of years. You are part of that growth. The fund operates across global macro and fixed income and is now pushing hard into systematic strategies. AI sits right at the centre of that push, and this role sits right at the centre of that. This is genuinely greenfield. The team will be transparent with you about that. There is no established playbook here, no legacy system to maintain, no one looking over your shoulder telling you how it was done before. You are helping shape what this function becomes, which means real ownership from day one. You will be working across LLM and generative AI development in a production environment, bringing Python fundamentals that you can apply to genuinely complex financial problems. The work is technical, the stakes are high, and the people around you are sharp. You are in the office with the team. This is a collaborative environment and they want you present for it. You have production LLM and generative AI experience under your belt. You are comfortable in Python. This would be a great third or fourth role in your career, somewhere you can take what you have learned and actually run with it. The compensation goes up to £250k total comp, which reflects how seriously they are taking this buildout. Ready to stop maintaining and start building? Get in touch. No up-to-date CV required.