Principal AI Engineer – Agentic AI / Developer Platforms
London | Hybrid | Contract
We’re partnering with a leading technology-driven organisation that is taking a genuinely progressive approach to AI within software engineering.
They’re looking for a hands-on Staff / Principal-level Engineer to help shape how AI and coding agents are used across their engineering function.
This is a role for someone who is an experienced software engineer first, with deep practical Agentic AI experience. You’ll still be writing code, building platforms and solving engineering problems yourself.
What you’ll be doing
- Building shared AI and developer-platform capabilities used by engineering teams
- Creating reusable tooling, SDKs, agent frameworks and engineering patterns
- Using coding agents such as Claude Code, Codex and Cursor extensively within your own development workflow
- Building and operating MCP, Agentic AI, RAG and multi-agent capabilities
- Establishing evaluation, testing and release controls for AI-generated software
- Improving developer productivity, CI/CD, testing and repository quality
- Designing for enterprise requirements around security, identity, auditability, data integrity and compliance
- Influencing engineering teams through working software and strong technical judgement
What we’re looking for
We’re particularly interested in engineers who have a strong commercial software engineering background and can demonstrate that they have personally built and shipped production systems.
Ideally, you’ll have experience across areas such as:
- Staff / Principal Software Engineering
- Python and modern software engineering
- Agentic AI and coding agents
- Claude Code / Codex / Cursor
- MCP
- LangGraph or similar orchestration frameworks
- RAG and context engineering
- LLM evaluation and regression testing
- Developer platforms and internal tooling
- CI/CD, observability and production operations
- Security, authentication and enterprise identity
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