Research Engineer, Benchmarking - Member of Technical Staff

Company

Callosum

Where

London

Level

Staff

First seen

August 21, 2026

Listed via

Ashby

What the posting says

This role owns that system. You will build a harness that measures task success, quality, and robustness across motifs, agent topologies, and decomposition strategies, grounded in execution - real commits, real traces, sandboxed grading - rather than self-reported or model-graded scores. The results become the proof points we show customers, the evidence behind the benchmarks we co-publish, and the basis on which an approach ships or doesn't. This is a research hire that builds. We expect the rigour of a strong evaluation paper applied to a production system, and the engineering ability to…

Read more and apply on Callosum's site

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