London, Hybrid | Contract - Long Term | Salary: Competitive

Harnham is working with a growing robotics and AI company that is looking for a Senior ML Platform Engineer to join their team in London.

This is a hands‑on platform engineering role, focused on owning the software, tooling, web UI, and infrastructure layer used by data operators, ML engineers, and robotics engineers.

You will be responsible for building and improving the internal applications and orchestration tooling that support robot data collection, dataset workflows, model training infrastructure, and on‑robot deployment.

The Role

You will:

• Own and extend internal web applications used for robot data collection, review, QA, and dataset publishing
• Build and maintain FastAPI backends, vanilla JavaScript frontends, CLI tooling, and supporting services
• Improve recording workflows, state machines, config validation, batch...