Python Developer – Agentic AI / GenAI – Investment Banking

Company: GCS Recruitment
Apply for the Python Developer – Agentic AI / GenAI – Investment Banking
Location: London
Job Description:

Python Developer – Agentic AI / GenAI – Investment Banking

London, Farringdon | Hybrid | Inside IR35 | Contract

We are looking for a highly experienced Python Developer / AI Engineer to join a consulting engagement delivering Agentic AI and Generative AI solutions within an Investment Banking environment.

This is a hands‑on development role requiring strong Python engineering alongside proven commercial experience building Agentic AI, LLM and RAG solutions.

Key Skills

  • Strong commercial Python development
  • Hands‑on Agentic AI / AI Agent development
  • LLMs / Generative AI
  • RAG (Retrieval-Augmented Generation)
  • OpenAI / GPT
  • Anthropic Claude
  • LangChain, LangGraph, AutoGen, CrewAI or similar
  • FastAPI / API development
  • AI orchestration, tool calling and guardrails
  • Strong Investment Banking / Capital Markets experience
  • Excellent communication and stakeholder‑facing skills

The Role

You will work within a consulting team designing and developing production‑grade AI solutions for an Investment Banking client.

The work will involve building Python‑based AI applications, agentic workflows, LLM integrations and RAG solutions within a highly regulated enterprise environment.

Contract Details

  • Location: London, Farringdon
  • Working model: Hybrid
  • IR35: Inside IR35
  • Sector: Investment Banking / Capital Markets
  • Contract: Initial contract with potential extension

Previous Investment Banking experience is essential.

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Posted: September 23rd, 2026