Senior Python Backend Engineer – AI Evaluation, Contract (Remote)

Remote contract for senior Python engineers: build and review the pipelines and rubrics frontier AI research teams use to judge AI-written code. You'll review model outputs with a high bar, catch subtle bugs, and turn that judgment into clear write-ups and evaluation tooling. Pay: $60–90/hr depending on experience Hours: 20–40 hrs/week (at least 4 hrs/day), about 3 months, starts within 1–2 weeks Location: remote, US or Canada, 4 hours/day overlap with US Pacific time (evenings ET work) Required: - 5+ years of professional Python, ideally building data pipelines or backend infrastructure - Hands-on experience with preference data, rubric creation, or AI/LLM evaluation - Strong written communication - An up-to-date LinkedIn profile Strongly preferred: experience at top-tier tech companies and/or a top university. How it works: a 2-minute application, a short technical screen, then ID verification. We check every résumé, LinkedIn and ID. Apply: https://experts.rustlabs.ai/apply?role=senior-engineer&ref=li-python-swe