Research Engineer — AI Agent Harness & Eval

Tessl, a London-based startup, is hiring a Member of Technical Staff- Research Engineer for Harness Engineering and Agentic Orchestration. You will help shape how agent harnesses orchestrate model behavior, how we evaluate performance, and how production traces inform improvements.

Join a team that works close to customers and ships impactful experiments. The role blends research with hands-on implementation across AI/ML pipelines, evaluation, and tooling, with a hybrid working model in London.

#J-18808-Ljbffr…