AI Engineer (Harness)
Valarian Technologies is hiring for AI Engineer (Harness) in London. Mid level. First seen September 17, 2026; open as of November 12, 2026. Jobs taken straight from company career pages — no aggregator in between.
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- Company
- Valarian Technologies
- Where
- London
- Level
- Mid
- First seen
- September 17, 2026
- Listed via
- Lever
What the posting says
The Role As an AI Harness Engineer at Valarian, you will own the experimental design, evaluation methodologies, and benchmark infrastructure for our AI models and autonomous agentic workloads. In an emerging domain with no standard playbook, you will serve as the bridge between rigorous data science, statistical validation, and production agent scaffolding. You will design robust evaluation datasets, architect calibrated LLM-as-a-judge pipelines, and build metrics that accurately capture multi-step agent performance under non-deterministic conditions. Your insights and error analyses will…
Read more and apply on Valarian Technologies' site
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