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Senior Software Engineer, AI Evaluation Infrastructure

Job Overview

We build the infrastructure that frontier AI labs use to evaluate coding agents and language models: benchmark datasets, agent evaluation runs at scale, and automated task quality checks.

Key points

  1. Design and ship features end to end: data model, API, background workers, and the UI when the change needs it.

  2. Build and improve how agents and models are evaluated: running trials in sandboxed environments, scoring results…

  3. Improve how benchmark tasks are quality-checked: verifiers, rubric-based and LLM-as-a-judge grading, and deciding whether a task is clear, solvable, and fair to score.

  4. Integrate new models, agents, and benchmarks in a way that generalizes, without a special case for each one.

  5. Bachelor’s degree or higher in Software Engineering, Computer Science, or a related field.

  6. Strong Python and experience with Django (or a similar framework), PostgreSQL, and a task queue such as Celery. What matters most is having run…

  7. Hands-on experience in LLM evaluation, beyond calling a model API. You understand how a benchmark task is built…

  8. Judgment about task quality. You can spot ambiguous instructions, weak or gameable verifiers, leaked answers, and checks that pass for the wrong reason.

Skills

LLMsPythonTypeScriptReactSQLDjangoDockerKubernetes

Experience: Senior-level · 5+ years

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