17,974 Y Combinator jobs
Open roles at Y Combinator–backed companies, from current batches to graduated unicorns.
Head of Avionics Manufacturing
At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s…
Senior Avionics Hardware Engineer, Power
At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s…
Sales Operations Manager
About Wonderly Wonderly is a closed-loop, end-to-end system that self-improves on our customers’ revenue. We serve the home service industry ($1.3T), and can consistently double a new customer’s revenue within 90 days.…
Home Improvement Inside Sales Rep
About Wonderly Wonderly is a closed-loop, end-to-end system that self-improves on our customers’ revenue. We serve the home service industry ($1.3T), and can consistently double a new customer’s revenue within 90 days.…
Mid-Market Account Executive
Tracecat helps AI-native security teams build agents and automate cyber defense. We're a product-led, open core company with open source and community at the center (), and we win deals against competitors 100x our…
Staff Software Engineer, Directory Accuracy (Health Plans)
At H1, we believe access to the best healthcare information is a basic human right. Our mission is to provide a platform that can optimally inform every doctor interaction globally. This promotes health equity and…
In-Home Sales Representative
About Wonderly Wonderly is a closed-loop, end-to-end system that self-improves on our customers’ revenue. We serve the home service industry ($1.3T), and can consistently double a new customer’s revenue within 90 days.…
Senior Software Engineer - Product Security
Senior engineer on Faire's Product Security team builds scalable security frameworks (authentication, data access) for the wholesale marketplace's Kotlin services, consults with product teams on vulnerabilities and risks, and promotes secure coding practices. Stack includes Kotlin, TypeScript, Python, AWS, Terraform, Kubernetes, and MySQL/DynamoDB/CockroachDB.
Software Engineer, Robotics
About CircuitHub CircuitHub is reshaping electronics manufacturing with The Grid, a factory-scale robotics platform that makes small-batch, high-mix electronics assembly radically more efficient. Think…
Software Engineer, Computer Vision
About CircuitHub CircuitHub is reshaping electronics manufacturing with The Grid, a factory-scale robotics platform that makes small-batch, high-mix electronics assembly radically more efficient. Think…
Software Engineer, Front End & Design
About CircuitHub CircuitHub is reshaping electronics manufacturing with The Grid, a factory-scale robotics platform that makes small-batch, high-mix electronics assembly radically more efficient. Think…
Chief of Staff Associate Intern
About HyLight Power lines, gas pipelines and railways are still inspected the way they were 50 years ago: by helicopter. Expensive, noisy, and up to a tonne of CO₂ per flight hour. We built the alternative. The…
Chauffeur super poids lourd (SPL) Dirigeable (H/F)
À propos de HyLight Les lignes électriques, les gazoducs et les voies ferrées sont encore inspectés comme il y a 50 ans : en hélicoptère. Cher, bruyant, et jusqu’à une tonne de CO₂ par heure de vol. Nous avons…
Senior Electronics Engineer
About HyLight Power lines, gas pipelines and railways are still inspected the way they were 50 years ago: by helicopter. Expensive, noisy, and up to a tonne of CO₂ per flight hour. We built the alternative. The…