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Member of Technical Staff- Research Engineer (Harness Engineering and Agentic Orchestration)

Tessl

Staff+HybridLondon, UK

Help shape the future of AI coding agents at Tessl.

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About Tessl

Tessl is building the context layer for AI coding agents.

What you'd do

Analyze customer sessions and agent failures
Design evaluation metrics for agent performance
Manage dataset curation and harness configuration
Prototype new agent solutions based on real tasks

What they're looking for

4+ years in AI/ML product development
Depth in agent harness and orchestration
Experience with LLMs and agentic systems
Strong instincts for customer needs

Perks

Health insurance for partners and dependents
Pension contributions
Pet-friendly office near King's Cross