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Mid Level Full-Stack Engineer

AfterQuery Afterquery ContractRemote
Posted Oct 3, 2026 · ✓ Still open — checked 5 hours ago

Quick facts

Type
Contract
Location
Remote
Platform
Afterquery — 226 open jobs
Typical pay at Afterquery
$40–150/hour · median $88 (77 jobs on our site)
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AfterQuery empowers foundational AI labs, enterprises, and startups by providing high-quality human-generated datasets that are essential for fine-tuning more capable, refined, and reliable AI systems. We are on the forefront of creating the most complex data infrastructure to capture the most useful data for our major clients. We have raised our most recent round from BoxGroup, YC and a group of strategic angels that will push us to be at the forefront of the industry. We're seeking a Full Stack Engineer to build diverse, production-quality applications that will serve as training examples for AI models. You'll create complete, functional end-to-end applications across various domains and use cases - each application you build becomes part of our AI training dataset. Your work will involve developing a wide range of software solutions that demonstrate different architectural patterns, features, and implementations.

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About Afterquery

AfterQuery is a Y Combinator-backed company that produces expert data for frontier AI labs. It hires professionals and specialists to build hard evaluation problems, write gold-standard answers and review model reasoning.