AI Engineer

AI Engineer

Are you ready to build the future of AI from the ground up?

Our client are not buying off-the-shelf solutions. They're custom-building everything - from infrastructure to intelligent agents - to create a best-in-class AI platform that redefines what's possible in enterprise automation.

We're currently looking for a high-impact AI Engineer to join their London-based team and help design and develop agentic AI systems that can reason, plan, and act autonomously across complex business domains.

What You'll Be Doing

Designing and implementing agentic AI systems capable of autonomous decision-making and task execution.
Building custom LLM pipelines, memory architectures, and tool-use frameworks.
Collaborating with product and engineering teams to integrate AI into real-world workflows.
Contributing to the development of our proprietary AI platform - no plug-and-play, all innovation.

What We're Looking For

Proven experience in building AI/ML systems, ideally with Azure OpenAI, Azure Cognitive Services Azure Machine Learning.
Strong Python skills and familiarity with modern AI frameworks (e.g., LangChain, Hugging Face, PyTorch).
Deep understanding of LLMs, vector databases, prompt engineering, and multi-agent systems.
Passion for building from scratch - you thrive in greenfield environments.
Based in or near London, with the ability to be onsite once a week.

Why Join Us?

Be part of a visionary team building something truly unique.
Work on cutting-edge AI challenges with full ownership and creative freedom.
Hybrid flexibility with a vibrant London office.
Competitive salary, equity options, and a culture of innovation.
Strong Python skills and familiarity with modern AI frameworks (e.g., LangChain, Hugging Face, PyTorch).
Deep understanding of LLMs, vector databases, prompt engineering, and multi-agent systems.
Passion for building from scratch - you thrive in greenfield environments.
Based in London, with the ability to be onsite once a week.

Why Join Us?

Be part of a visionary team building something truly unique.
Work on cutting-edge AI challenges with full ownership and creative freedom.
Hybrid flexibility with a vibrant London office.
Competitive salary, equity options, and a culture of innovation.To find out more about Huxley, please visit

Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC(phone number removed) England and Wales
Only candidates based in UK and eligible to work in UK are allowed