Member of Technical Staff, Evals Lead is open at Build Ai in San Francisco. The posting gives no salary; similar roles in the United States advertise a median of $235K. Posted on Aug 30, 2026, and still on Build Ai’s careers page when we last checked, on Nov 14, 2026.
About the role
We’re hiring an Evals Lead to benchmark video and world-model capabilities with and without our data. You need to deeply understand the philosophy of evals: what an eval is allowed to claim, contamination, leakage, construct validity, and whether a number actually corresponds to a capability. More practically, you should have pushed consequential evals before — evals that changed what a lab trained, shipped, or…
The opening lines of the posting. The rest is on Build Ai’s careers page.
Hiring at Build Ai
Build Ai has 29 open roles right now. Most are in Engineering, Data & Research and Design. The median advertised salary across its roles with a published range is $240K. See all its roles

