Software Engineer - Applied AI / Platform
San Francisco$140k - $200kFull-timePosted 7mo ago
About the role
Applied AI / Platform engineer role at AfterQuery focusing on end-to-end ownership of projects that push AI evaluation infrastructure, including research engineering and platform engineering tasks.
Responsibilities
- Design and build scalable systems: RL environments, APIs, and human-in-the-loop platforms.
Qualifications
- Strong coding fundamentals in Node.js / TypeScript, Python and/or Go
Skills
Required:Node.js / TypeScriptPythonDistributed systems
Benefits
- Generous equity grant vested over 4 years
- Daily lunch & dinner covered
- Free gym membership
- Health insurance
Last updated Aug 26, 2026. Interested? Apply on the company site.

About AfterQuery
AfterQuery is an applied research lab curating data solutions to accelerate foundation model development.
AI researchdata solutionsfoundation model developmenttraining datasupervised fine-tuningreinforcement learningagent environmentscomputer use trajectories
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