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La Fosse Linkedin · Posted 2mo ago

Principal AI Engineer

London, Westminster, United Kingdom

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Indexed description

Principal AI Engineer

  • London - Hybrid (3 days in office)
  • Up to £135,000 + 20-40% bonus


A globally recognised investment advisory firm managing $50B+ in assets is building a brand-new, in-house AI capability. They are looking to hire a hands-on AI Engineer to help shape it.


This is a high-impact role working directly with the CIO, Research and Operations teams to design and deploy production-grade Agentic AI and RAG systems across complex, unstructured financial documentation.


What You’ll Do

  • Design and maintain advanced RAG pipelines
  • Build and evolve an in-house Agentic AI system
  • Work with LLMs, vector databases and knowledge graphs
  • Develop production APIs in Python
  • Implement guardrails, evaluation frameworks and monitoring
  • Translate real business problems into AI solutions


What We’re Looking For

  • 3+ years’ experience in AI engineering
  • 10 years experience in software, data or ML
  • Formal educational training in AI / ML
  • Strong Python skills
  • Experience with agentic AI frameworks
  • Experience with LLMs in production.
  • Experience with RAG, vector databases and agent frameworks
  • Comfortable owning projects end-to-end
  • Curious, driven and passionate about AI
  • Microsoft/Azure environment ideally.
  • Financial services experience is a plus but not essential.


This is a rare opportunity to build AI capability from the ground up in a sophisticated investment environment with real autonomy and senior exposure.


If you’re excited by Agentic AI and want to create something new — apply through the AD to find out more.


Principal AI Engineer

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