Software Engineer jobs at Y Combinator startups

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Verge Genomics (S15) We use human data and AI to develop better drugs faster.
Senior Data Engineer

fulltimeSan Francisco - Remote / Remote (US)Full stack

Verge Genomics (S15) We use human data and AI to develop better drugs faster.
Head of Product & Engineering

fulltimeSan Francisco - Remote / Remote (US)Full stack

OneSignal (S11) Engage customers through personalized omni-channel messaging(6 months ago)
Senior Software Engineer, Journeys Team (Fullstack)

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

OneSignal (S11) Engage customers through personalized omni-channel messaging(3 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
HackerRank (YC S11) | Hiring Engineering Manager | Santa Clara - Hybrid

fulltimeSanta Clara, CA, USEngineering manager

HackerRank (S11) Change the world to value skills over pedigree(4 days ago)
Senior Engineering Manager

fulltimeBengaluru, KA, IN / Bengaluru, Karnataka, INEngineering 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

Wefunder (W13) We're Robinhood for pre-IPO startups. Everyone can invest $100.(2 days ago)
Full Stack, Senior Software Engineer

fulltimeSan Francisco, CA, USFull stack

CircuitHub (W12) On-Demand Electronics Manufacturing
Computer Vision Engineer

fulltimeUK / Remote (US)Full stack

CircuitHub (W12) On-Demand Electronics Manufacturing(about 1 month ago)
Operations Research Engineer

fulltimeUK / Remote (US)Full stack

Amplitude (W12) Digital Analytics Platform(25 days ago)
Senior Product Engineer, AI Agents

fulltimeSan Francisco, CA, USFull stack

Amplitude (W12) Digital Analytics Platform
Staff Product Engineer, AI Agents

fulltimeSan Francisco, CA, USFull stack

Bolna AI (F25) Voice AI to enable India's next billion
Lead Backend Engineer (India)

fulltimeDL, IN / Delhi, IN / Bengaluru, KA, IN / Bengaluru, Karnataka, IN / Gurugram, HR, IN / Gurugram, Haryana, INBackend

RealRoots (S25) AI social app for female transplants(about 1 month ago)
Software Engineer, Full-Stack

fulltimeSan Francisco, CA, USFull stack

Humoniq (S25) AI-Native BPO for travel & transport
Senior Backend Engineer (GDS Experience Required)

fulltimeBoulder, CO, US / Mission Viejo, CA, US / New York, NY, US / Remote (US)Backend

Idler (S25) Scale AI for reinforcement learning environments.
Senior Software Engineer

fulltimeSan FranciscoFull stack

Idler (S25) Scale AI for reinforcement learning environments.
Software Engineer

fulltimeSan FranciscoFull stack

Floot (S25) The easiest way for non-coders to build apps with AI.(13 days ago)
Founding Full-Stack Engineer

fulltimeSan Francisco, CA, USFull stack

Comena (S25) AI agents for distributors and manufacturers to automate order entry.(about 5 hours ago)
Software Engineering Intern

internMunich, BY, DE / Munich, Bavaria, DEFull stack

Comena (S25) AI agents for distributors and manufacturers to automate order entry.(about 6 hours ago)
Forward Deployed Engineer

fulltimeMunich, BY, DE / Munich, Bavaria, DEFull stack

AgentHub (S25) The simulation and evaluation engine for AI agents
Founding Research Engineer

fulltimeSan Francisco, CA, USMachine learning

AgentHub (S25) The simulation and evaluation engine for AI agents(13 days ago)
Founding Engineer

fulltimeSan Francisco, CA, USFull stack

Pangolin (S25) Open-source alternative to Cloudflare Tunnels(about 21 hours ago)
Founding Engineer

fulltimeSan Francisco, CA, USFull stack

Wafer (S25) Optimized AI Inference. Custom Built for Your Stack.(10 days ago)
Member Of Technical Staff (Winter Intern)

internSan Francisco, CA, USMachine learning

Wafer (S25) Optimized AI Inference. Custom Built for Your Stack.(12 days ago)
Member Of Technical Staff (Summer Intern)

internSan Francisco, CA, USMachine learning

StarSling (X25) Cursor for DevOps(2 months ago)
Founding Software Engineer (Full-Stack)

fulltimeSan Francisco, CA, US / San Mateo, CA, US / Palo Alto, CA, US / Menlo Park, CA, US / Redwood City, CA, USFull stack

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

fulltimeSan Francisco, CA, US / San Mateo, CA, US / Palo Alto, CA, US / Menlo Park, CA, US / Redwood City, CA, USFull stack

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

fulltimeIN / Remote (IN)Backend

Besimple AI (X25) Expert-in-the-loop eval data for AI
Product Engineering Intern - Remote Part Time

internUS / Remote (US)Full stack


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