Software Engineer jobs at Y Combinator startups

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Tab (W15) Revolutionising the way travellers discover, plan and book a trip(about 1 month ago)
Product Engineer

fulltimeLondon, UKFull stack

HackerRank (S11) Change the world to value skills over pedigree
HackerRank (YC S11) is Hiring a Senior Software Engineer

fulltimeSanta Clara, CA, USBackend

HackerRank (S11) Change the world to value skills over pedigree
HackerRank (YC S11) is Hiring a Software Development Engineer

fulltimeSanta Clara, CA, USBackend

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

fulltimeSan Francisco, Remote / Remote (US)Full stack

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

fulltimeLondon, England, GBBackend

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

fulltimeBR / Remote (BR)Backend

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

fulltimeSan FranciscoFull stack

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

fulltimeSan FranciscoFull stack

MorphoAI (X25) Software tool for designing robots and machines (3 months ago)
Founding Engineer

fulltimeLondon, England, GBMachine learning

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

fulltimeIN / Remote (IN)Frontend

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

fulltimeIN / Remote (IN)Backend

Minerva (X25) AI to Replace SMB Bookkeepers
Full Stack Developer (Founding Engineer Trial Contract)

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

Plexe (X25) Open-source agents to build predictive ML models from a prompt(about 1 month ago)
Forward Deployed Engineer

fulltimeIN / Remote (IN)Full stack

Plexe (X25) Open-source agents to build predictive ML models from a prompt
Founding Engineer (Full-Stack)

fulltimeGBFull stack

Artifact (W25) An Collaborative, AI-native IDE for Hardware Engineers(3 months ago)
Forward-Deployed Software Engineer

fulltimeNew York, NY, USFull stack

Artifact (W25) An Collaborative, AI-native IDE for Hardware Engineers(3 months ago)
Senior Software Engineer

fulltimeNew York, NY, USFull stack

Harper (W25) AI-native commercial insurance brokerage
AI Forward Deployed Engineer - Member of Technical Staff

fulltimeSan Francisco, CA, USMachine learning

Harper (W25) AI-native commercial insurance brokerage(2 months ago)
Machine Learning / Data Scientist - Member of Technical Staff

fulltimeSan Francisco, CA, USData science

Solidroad (W25) AI agents for sales and support teams, starting with training and QA.(2 months ago)
Senior Product Engineer

fulltimeSan Francisco, CA, USFull stack

Solidroad (W25) AI agents for sales and support teams, starting with training and QA.(about 1 month ago)
Software Engineer

fulltimeSan FranciscoFull stack

Olive (W25) Build internal tools for your data with natural language.
Software Engineering Intern

fulltimeSan Francisco, CA / Remote (US)Full stack

Olive (W25) Build internal tools for your data with natural language.
Founding Software Engineer

fulltimeSan Francisco, CAFull stack

ZeroEntropy (W25) High accuracy search API over unstructured data.
Founding Engineer

fulltimeSan Francisco, CA, USBackend

ZeroEntropy (W25) High accuracy search API over unstructured data.
Founding AI Engineer

fulltimeSan Francisco, CA, USMachine learning

SalesPatriot (W25) We help defense firms win more contracts with the Pentagon(4 months ago)
Lead Forward Deployed Engineer

fulltimeSan FranciscoFull stack

SalesPatriot (W25) We help defense firms win more contracts with the Pentagon(26 days ago)
Principal Fullstack Engineer (Backend, Infra, Agents & Frontend)

fulltimeSan Francisco, CA, USFull stack

Apolink (F24) 24/7 satellite connectivity in low Earth orbit
Principal Embedded Software Engineer

fulltimePalo AltoFull stack

FutureClinic (F24) We help doctors launch their own chat-based clinics(27 days ago)
Founding Engineer - Frontend

fulltimeNY, US / Remote (US)Frontend

FutureClinic (F24) We help doctors launch their own chat-based clinics(13 days ago)
Founding Engineer - Backend

fulltimeNY, US / Remote (US)Backend

Edgedive (F24) Understand what your customers are actually saying(1 day ago)
Engineering Intern - Fall 2025

internSan Francisco, CA, USFull stack


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