Jobs at Y Combinator

Designing and developing internal tools for Y Combinator, focusing on productivity software and event management for startup founders and teams.

The role involves building full-stack web applications, evaluating growth-stage companies, and contributing to investment decisions for Y Combinator.

The Product Engineer will develop critical software tools for founders, manage the YC program, and collaborate with a small team of engineers.

Own new AI-native products end-to-end from 0→1: design, build, and ship full-stack systems and developer tools (agents, embeddings, semantic search, knowledge graphs). Drive developer UX, make product decisions, engage communities, and iterate rapidly using AI-enabled dev stacks.

As a Frontend Leaning Full Stack Engineer, you will improve internal software, enhance user-facing tools, and shape UX/UI for founders and investors, focusing on efficiency and product ownership.

The role involves designing and building full-stack applications for Y Combinator's operations, focusing on automation, user experience, and direct collaboration with non-technical stakeholders.