Thinking Machines Lab, San Francisco +1
Evaluation is one of the most important pillars of building frontier AI systems. It guides research direction, powers experimentation, and helps us understand whether changes to data and training are improving the capabilities and behaviors we care about.
To support this work, researchers need a powerful, self-serve platform that makes it easy to author evaluations, run them or reproduce them reliably at scale, and extract insight from the results. The platform must support both standardized external benchmarks and fast-moving internal evaluations, many kinds of tasks and graders, and inspection from aggregate metrics down to individual model trajectories.
In this role, you will design and build this platform end to end. You will work across Python frameworks, data pipelines, APIs, and user-facing applications, and collaborate closely with pre-training, post-training, and applied teams to improve how we evaluate models and turn results into research decisions.
The mission of Thinking Machines is to build AI that extends human will and judgment. We are training frontier models with Inkling, developing Tinker to let people make models their own, and crafting interfaces that broaden human-AI communication. We believe the future worth building is human, and we're hiring people who want to build it.
Pay not posted
Posted Oct 8, 2026
$170K–$200K / yr
Posted 22 days ago
People Culture TalentSan Francisco, CA
$200K–$350K / yr
Posted Sep 16, 2026
Pay not posted
Posted 28 days ago
MetaMenlo Park, California
$154K–$217K / yr
Posted Aug 28, 2026
checked 4 days agoOpenAISan Francisco
$347K–$445K / yr
Posted Sep 29, 2026
Source: the Thinking Machines Lab Ashby job board. We last checked this job 6 h ago. We first saw it 3 days ago. A job on a job board does not always mean that the team interviews people now.
Funding records can have errors and can be missing. The company page has the links.
This base pay is above the median for infrastructure, platform and SRE jobs in the Bay Area with no level in the job title.
We compare the middle of each posted range. This is base pay as posted. The group does not include this job.