Massive Opportunity: We are YC’s fastest unicorn valued at $3.2 billion 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 shape the engineering organization and lead major technical initiatives.
Strong Team: Our founding team has experience from Citadel Securities, Meta, Google, Silver Lake, and Morgan Stanley — work alongside world-class engineers and researchers.
The AfterQuery Research Fellow program welcomes experienced researchers from AI and other disciplines who want to apply their expertise to frontier AI research and help push the boundaries of model capabilities. Fellows join us in our San Francisco office for 12–16 weeks of full-time, paid research.
Projects are tailored to each fellow’s expertise and interests, with focus areas including:
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Data quality and data composition
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Post-training, including supervised fine-tuning and reinforcement learning
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Agent and foundation-model evaluation
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Public benchmarks in coding and specialized domains such as medicine, finance, law, and STEM
The goal is to develop the work into a joint publication or public benchmark. Fellows receive weekly mentorship and hands-on support with engineering, datasets, human annotation, and compute resources.