Agentic AI Engineer (.NET) - Contract

Agentic AI Engineer (.NET) - ContractClient: Global Technology Leader - NASDAQ ListedLocation: Hybrid - Bristol / 1-2 Days Per WeekDuration: 6 months + Intention to extend (Greenfield Multi-Year Programme)Day rate: £500 - Inside IR35Start date: ASAPOur client, a global leader in software systems, is building AI agents that generate production .NET code under developer supervision. The goal of this greenfield is a spec-driven pipeline where a specification and technical plan drive what the agent builds, and a developer reviews and validates the output at every stage before it ships.We are looking for a contractor who has built and shipped AI agents in production and who brings a strong .NET background. This is a hands-on engineering role with scope to set the technical direction and bring the wider team up to speed on the approach.What you will do:Design and build agents that produce production-grade .NET code.Implement a spec-driven development workflow (spec, plan, tasks, implement), using Spec Kit.Build review and approval gates so developers can verify and correct agent output before it is merged.Integrate tools and data sources into the agents via MCP (Model Context Protocol).Set up evaluation, guardrails and tests to catch incorrect output early.Work alongside engineering team''s and upskill them on agentic patterns and the spec-driven approach.Essential experience:Proven track record building and shipping AI agents in production, including tool calling, orchestration ..... full job details .....