Software Engineer - Evals at SpaceXAI
Palo Alto, CA
$175,000–$275,000from the description
Jul 21, 2026
Palo Alto, CA
Jul 23, 2026
What this job asks for AI summary
This role sits on an evaluations team responsible for measuring AI model capabilities and behaviors — building the infrastructure, datasets, and grading schemes used to assess, clean, and improve frontier models. Day-to-day work involves designing and shipping robust internal tooling and systems that support research workflows. It suits software engineers with a strong eye for quality who can translate abstract notions of model performance into concrete, measurable criteria.
Mid level · 3+ years · Full-time
We read this from the posting text with AI. Skim the description below before ruling yourself out.
How this req sits in the market our data
Rare in this occupation — lead with these, and say what you built with them.
What the occupation pays Median $138,970 (middle half $107,524–$175,762). This posting is about at that midpoint.
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Jul 28, 2026. It is a model, not a headcount.
Why we read it this way (4)
No specific programming languages, frameworks, or platforms are named anywhere in the posting — the only concrete technical skills mentioned are in the 'Bonus Points' (preferred) section: AI/ML workflows, annotation tools, evals, component libraries, and design systems.
The posting explicitly states 'We are open to all levels from new grads to senior engineers,' making seniority ambiguous. The hard gate of 3+ years of active coding experience and independent delivery expectations best maps to a Mid-level band, though the compensation range ($175K–$275K) is consistent with a wide Senior-to-Staff spread.
No work location is specified in the posting; the company (xAI) is generally associated with the San Francisco Bay Area but no city or remote policy is stated, so CBSA and remote fields are left unset/false.
The role sits at the intersection of software engineering and AI evaluation/research tooling — a secondary classification of 15-1299 (Computer Occupations, All Other) is noted given the evals/research-platform focus, but the primary day-to-day work described is building and shipping software systems.
Read the full posting
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