AI Harness Engineer — LLM Evaluation & Benchmark Architect

Company: Valarian Technologies
Apply for the AI Harness Engineer — LLM Evaluation & Benchmark Architect
Location: London
Job Description:

Valarian Technologies is seeking an AI Harness Engineer to own experimental design and evaluation infrastructure for AI models and autonomous workloads. You will bridge data science, statistics, and production scaffolds, designing robust datasets, calibrated LLM-judge pipelines, and scalable Python harnesses.

You will drive metric integrity, error analysis, and governance of tool orchestration, ensuring safe, reproducible evaluations while collaborating with London-based teams in a hybrid setup.

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Posted: October 21st, 2026