Python Developer & AI Engineer (Forward Deployed)

Company: McCabe & Barton
Apply for the Python Developer & AI Engineer (Forward Deployed)
Location: London
Job Description:

London, UK | Hybrid – 3 days in office

Rate: Inside IR35

We are seeking a Python Developer & AI Engineer (Forward Deployed) to join a fast-moving team working across AI platform engineering and direct collaboration with the Investment Team.

The role is split approximately 60/40 between platform engineering and business-facing AI delivery, focusing on building and deploying production‑grade AI solutions.

We are looking for someone who writes clean, production-quality code and can turn AI capability into real business impact.

Key Responsibilities

  • Build and maintain MCP connectors across core systems.
  • Support the LLM gateway, including model routing, prompt caching, and cost management.
  • Administer Claude Enterprise and ChatGPT Enterprise environments.
  • Develop and deploy agentic AI and RAG-based applications.
  • Work closely with investment stakeholders to scope and deliver AI solutions.
  • Ensure scalable, production‑ready AI infrastructure and high engineering standards.

Required Skills

  • Strong experience with Python, TypeScript, and .NET development.
  • Hands‑on experience building and deploying AI applications in production.
  • Experience with MCP or orchestration frameworks (LangChain, LangGraph, Pydantic AI).
  • Strong understanding of LLM infrastructure (routing, caching, inference optimisation).
  • Experience with LLM observability tools (e.g. Langfuse).
  • Strong communication skills and ability to work with non‑technical stakeholders.
  • Experience with Claude Enterprise and/or ChatGPT Enterprise.
  • Exposure to financial services (not essential).

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Posted: June 13th, 2026