Gen AI Engineer: Build Production AI Apps & Agents

Company: Lorien
Apply for the Gen AI Engineer: Build Production AI Apps & Agents
Location: London
Job Description:

Lorien in London is seeking a software engineer to build, evaluate and operate production-grade AI applications, agents and reusable tooling. This role focuses on AI integration and robust API-driven systems, not just prompt engineering.

You will implement agents, AI-assisted workflows, model integrations, automated evaluations, and guardrails while working hybrid, with on-site three days a week. Open to contract or permanent hire, with IR35 inside.

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Posted: September 21st, 2026