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.
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Mashgin (W15) Self-Checkout using Computer Vision.
Senior Software Engineer, Infrastructure

fulltimePalo Alto, CABackend

Mashgin (W15) Self-Checkout using Computer Vision.
Senior Software Engineer, Full-Stack

fulltimePalo Alto, CAFull stack

OneSignal (S11) Engage customers through personalized omni-channel messaging(4 months ago)
Senior Software Engineer, Journeys Team (Fullstack)

fulltimeUnited States (Remote) / Remote (US)Full stack

OneSignal (S11) Engage customers through personalized omni-channel messaging(about 2 months ago)
Staff Software Engineer, SMS Team (Fullstack)

fulltimeUnited States (Remote) / Remote (US)Full stack

HackerRank (S11) Change the world to value skills over pedigree
Web Design Engineer

fulltimeHybrid in Santa Clara, CAFull stack

HackerRank (S11) Change the world to value skills over pedigree
HackerRank (YC S11) is Hiring an Engineering Manager

fulltimeSanta Clara, CA, USEngineering manager

Tenjin (S14) Mobile marketing analytics and infrastructure
Senior Full-Stack Ruby on Rails Engineer

fulltimeUS / CA / MX / BR / AR / CO / PE / Remote (US; CA; MX; BR; AR; CO; PE)Full stack

Tenjin (S14) Mobile marketing analytics and infrastructure
Senior Mobile SDK Engineer

fulltimeSan Francisco / Remote (US; CA; MX; CO; AR; BR; PE)Full stack

PicnicHealth (S14) Empowering Patients for Deep Real World Data
AI Tools Engineer

fulltimeSan Francisco, Remote / Remote (US)Full stack

Webflow (S13) Professional website design and publishing platform.
Senior Software Engineer

fulltimeSan Francisco, CA or Remote (US Only) / RemoteBackend

Webflow (S13) Professional website design and publishing platform.
Quality Assurance Manager

fulltimeSan francisco, CA or Remote (US Only) / Remote (US)Engineering manager

Wefunder (W13) We're Robinhood for pre-IPO startups. Everyone can invest $100.(8 months ago)
Full Stack, Senior Software Engineer

fulltimeSan Francisco, CA, USFull stack

Vulcan Technologies (S25) AI regulatory drafting and compliance(13 days ago)
Founding Engineer

fulltimeAustin, TX, USFull stack

Albacore Inc. (S25) Autonomous undersea vehicles to deter maritime invasions.
Mechanical Engineer

fulltimePhiladelphia, PA, USMechanical

Albacore Inc. (S25) Autonomous undersea vehicles to deter maritime invasions.
Electrical Engineer

fulltimePhiladelphia, PA, USElectrical

Channel3 (S25) Database of every product on the internet(7 days ago)
Founding Engineer

fulltimeNew York, NY, USBackend

Embedder (S25) Coding Agent for Firmware
Founding Embedded Software Engineer

fulltimeSan Francisco, CA, USEmbedded systems

Embedder (S25) Coding Agent for Firmware
Founding Software Engineer

fulltimeSan Francisco, CA, USFull stack

Text.ai (X25) AI in your group chats(2 days ago)
Founding Full Stack Engineer

fulltimeSan Francisco, CA, US / Remote (Los Angeles, CA, US)Full stack

StarSling (X25) Cursor for DevOps
Software Engineer (Full-Stack)

fulltimeSan Francisco, CA, USFull stack

StarSling (X25) Cursor for DevOps(28 days ago)
Founding Software Engineer (Full-Stack)

fulltimeSan Francisco, CA, USFull stack

Eloquent AI (X25) The AI Operator for Financial Services
AI Engineer, .＊RAG

fulltimeSan FranciscoFull stack

Eloquent AI (X25) The AI Operator for Financial Services
AI Engineer, Agent

fulltimeSan FranciscoFull stack

Third Chair (X25) Agents for in-house legal teams
Senior Software Engineer (Backend)

fulltimeIN / Remote (IN)Backend

Novoflow (X25) AI employees that automate medical operations for clinics.
Founding Forward Deployed Engineer

fulltimeSan Francisco, CA, US / Remote (US)Full stack

Novoflow (X25) AI employees that automate medical operations for clinics. (7 days ago)
Founding Software Engineer

fulltimeSan Francisco, CA, USFull stack

Crimson (X25) The AI Associate for Litigation Lawyers(5 days ago)
Founding Engineer (Full Stack)

fulltimeLondon, England, GBFull stack

The LLM Data Company (X25) Post-training Data Research
Founding Senior Research Engineer

fulltimeSan FranciscoFull stack

The LLM Data Company (X25) Post-training Data Research
Founding Research Engineer

fulltimeSan FranciscoFull stack

YouLearn (X25) AI tutor for each student.
Founding Engineer (Full Stack)

fulltimeSan Francisco, CA, USFull stack


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