AfterQuery captures how experts reason and turns real-world professional work into high-quality training data for frontier foundation models. Backed by Y Combinator.
About the role
Growth Engineering is where engineering meets the company’s most important commercial and user-facing problems. You will build the product systems that help us find, qualify, activate, and retain exceptional experts — and help the teams serving frontier AI labs move faster with better information and less manual work.
What they're looking for
- 3–5 years of professional software engineering experience, ideally building high-velocity product, growth, marketplace, or workflow software
- Strong full-stack engineering ability and a track record of shipping user-facing product from ambiguous requirements
- Excellent product sense: you can distinguish the real problem from the first requested solution and focus on what will move the metric
- Comfort working closely with non-technical partners and translating their needs into simple, robust systems
- High ownership, strong judgment, and the ability to move quickly without creating unnecessary complexity
- Experience with growth engineering, marketplace liquidity, onboarding, conversion optimization, or product analytics
More about this role
AfterQuery is an applied research lab curating data solutions for foundation model development. We serve every frontier AI lab with the mission of delivering the best data to power the best models. In doing so, we can make expertise that once took a lifetime to build available to anyone who needs it.
Our customers are the ones building the foundation models themselves and our work sits directly in the loop of how those systems improve. This is a rare opportunity to join a company at a defining moment in AI. Forbes reported that we could be YC's fastest unicorn, reportedly raising at a $3.2 billion valuation. We're based in San Francisco and backed by leading investors including Altos Ventures, BoxGroup, and Y Combinator and angels from Google DeepMind, OpenAI, Anthropic, Meta Superintelligence Labs, and Microsoft AI.
Massive Opportunity: Forbes reported that we could be YC's fastest unicorn, reportedly raising at a $3.2 billion valuation, and we're not slowing down.
Founding Impact: You will own and architect core infrastructure systems that power our platform from the ground up.
Equity & Growth: Competitive salary and meaningful equity. As we scale, you’ll have the opportunity to...
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