Software Engineer jobs at Y Combinator startups

Find open roles and connect with founders and hiring teams of over 1,000 vetted, funded Y Combinator startups. And create one application to apply to hundreds of roles at YC companies.
Create Profile ›
EngineeringDesignRecruitingScienceProductOperationsSalesMarketingLegalFinance
Lattice (W16) Modern people management platform.
Staff Software Engineer

fulltimeRemoteFull stack

OneSignal (S11) Engage customers through personalized omni-channel messaging
Engineering Manager, User Data Team

fulltimeSan Mateo, CA, US / Remote (CA, US; WA, US; PA, US; UT, US; TX, US; New York, NY, US)Backend

OneSignal (S11) Engage customers through personalized omni-channel messaging
Senior Software Engineer, Analytics Team

fulltimeUnited States (Remote) / Remote (WA, US; OR, US; CA, US; New York, NY, US; PA, US; TX, US; UT, US; NJ, US)Full stack

Checkr (S14) People infrastructure for the future of work
Senior Director of Data

fulltimeSan Francisco, California, United StatesData science

Checkr (S14) People infrastructure for the future of work
Senior DevOps Engineer

fulltimeSan Francisco, California, United StatesFull stack

Wefunder (W13) We're Robinhood for pre-IPO startups. Everyone can invest $100.
Full Stack, Senior Software Engineer

fulltimeRemoteFull stack

Etleap (W13) Etleap is an ETL solution for creating perfect data pipelines.
Software Engineer - Integrations South America (remote)

fulltimeBR / Remote (BR)Backend

Etleap (W13) Etleap is an ETL solution for creating perfect data pipelines.
Senior Software Engineer - San Francisco (Onsite)

fulltimeSan Francisco, CA, USBackend

Sepal AI (S24) Building LLMs for Large Enterprises.
Founding Full-Stack Engineer

fulltimeSan Francisco, CA, US / New York, NY, US / RemoteFull stack

Lilac Labs (S24) We automate the person taking orders at drive-thrus with a voice AI
Founding Engineer

fulltimeSan Francisco, CA, USBackend

David AI (S24) Data for audio AI
Founding Engineer

fulltimeSan Francisco, CA, US / New York, NY, USFull stack

camfer (S24) Building the world’s first AI mechanical engineer.
Founding Engineer

fulltimeSan Francisco, CA, USFull stack

camfer (S24) Building the world’s first AI mechanical engineer.
Intern

internSan Francisco, CA, USMachine learning

Silurian (S24) Foundation models to simulate Earth, starting with weather.
Founding Research Engineer

fulltimeSeattle, WA, US / RemoteFull stack

Phonely (S24) AI call centers
Founding Engineer (Full Stack + Dev Ops)

fulltimeSan Francisco, CA, USDevops

Theseus (S24) GPS Denied Navigation for Drones
Founding Engineer – Embedded Robotics Sensing

fulltimeSan Francisco, CA, USEmbedded systems

Theseus (S24) GPS Denied Navigation for Drones
Founding Engineer – Test Lead

fulltimeSan Francisco, CA, USEmbedded systems

RetailReady (W24) An AI-powered supply chain compliance engine
Full Stack Software Engineer

fulltimeSan Francisco, CA, USFull stack

Reprompt (W24) AI Agents for Location
Founding Engineer

fulltimeSan Francisco, CA, USFull stack

Yarn (W24) Make sales and marketing videos with AI.
Founding Engineer at Yarn (W24)

fulltimeNew York, NY, USFull stack

Quivr (W24) Open Source Chat-Powered Second Brain
Frontend Engineer

fulltimeParis, Île-de-France, FRFrontend

Spur (S24) Spur is your AI QA Engineer. Test your websites with natural language.
Founding Engineer / Full Stack

fulltimeNew York, NY, USFull stack

Retell AI (W24) Supercharge Your Contact Center Operations with AI Phone Agents
Founding Developer Relations Engineer

fulltimeRedwood City, CA, US / San Francisco, CA, USFull stack

Retell AI (W24) Supercharge Your Contact Center Operations with AI Phone Agents
Founding Full Stack Engineer

fulltimeSan Francisco, CA, US / Redwood City, CA, USFull stack

just words (W24) Scale hyper-personalized messaging with AI
Sr. Software Engineer (Backend)

fulltimeSan Francisco, CA, USBackend

just words (W24) Scale hyper-personalized messaging with AI
Founding Product Engineer

fulltimeSan Francisco, CA, USFull stack

Yondu (W24) Robots to Automate Fulfillment
Founding Robotics Engineer

fulltimeGardena, CA, US / Los Angeles, CA, USRobotics


Sign up to see more ›