Perm
AI Engineer
£100,000 – £130,000
London, ENG, GB
Perm
On-site / Hybrid
AI Engineer | Up to £130,000 | Remote | Full-Time
We've partnered with a well-funded Web3 infrastructure company eliminating blockchain fragmentation to recruit an AI Engineer. Following a $20M Series A, they're scaling fast and need someone who can supercharge the org through intelligent systems, reporting directly to the CTO.
You'll own the full AI stack; internal tooling, developer experience, customer-facing products, and everything in between, in a technically ambitious environment where your work has immediate, visible impact.
Key Responsibilities:
- Build AI-powered internal tooling and automation across all teams
- Enhance developer workflows with AI coding assistants and DX improvements
- Develop and maintain customer-facing AI systems and support pipelines
- Architect large-scale RAG and knowledge systems
- Design multi-agent and agent swarm architectures
- Manage LLM integration, model selection and cost/performance optimisation
- Fine-tune domain-specific LLMs and maintain observability (LangFuse, W&B)
- Build workflow automation pipelines with n8n and LangChain
What We're Looking For:
- Proven track record shipping AI systems in production
- Strong Python, TypeScript and/or JavaScript
- Hands-on expertise with LangChain, n8n and RAG at scale
- LLM fine-tuning and multi-agent architecture experience
- Familiarity with MCP and modern AI tooling (Cursor, Claude)
- A product mindset: you identify what teams actually need and drive adoption
Bonus: Voice AI/multimodal experience or open-source AI contributions
If you want to build at the intersection of cutting-edge AI and Web3 infrastructure, with real ownership and outsized impact, this is the role for you.
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