Software Engineer jobs at Y Combinator startups in San Jose
April 2025
San Jose has fast-growing Y Combinator startups that are well funded and hiring for software engineers. Find thousands of jobs and connect directly with founders at Y Combinator.
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San Jose startup jobs added recently
AfterQuery (W25) • High-quality AI starts with high-quality human dataInternshipSan Francisco, CA, US / Remote (US)Frontend
Instant (S22) • The Modern FirebaseFull-timeSan Francisco, CA, USFrontend
Stack AI (W23) • AI Agents for the EnterpriseFull-timeSan Francisco, CA, US / Remote (US)Animation
Volley (W18) • Voice AI games on smart speakers, TVs, and mobileFull-timeSan Francisco, CA
PostHog (W20) • The single platform to analyze, test, observe, and deploy new featuresFull-timeSan Francisco, CA, US
Strada (S23) • Phone AI agents for insuranceFull-timeSan Francisco, CA, USFull stack
Roame (S23) • Flight search engine using credit card points and milesFull-timeSan Francisco, CA, USProduct design
Complete (W22) • The complete way to do compensationFull-timeSan Francisco OfficeFull stack- Complete (W22) • The complete way to do compensationFull-timeSan Francisco OfficeFull stack
Parity (S24) • The AI SRE for Incident ResponseFull-timeSan Francisco, CA, USFull stack- Parity (S24) • The AI SRE for Incident ResponseFull-timeSan Francisco, CA, USFull stack
Tasker AI (W20) • Building AI agent automation layer of the internetFull-timeSan Francisco, CA, USUI / UX
Maitai (S24) • Reliable, self-improving enterprise AIFull-timeRedwood City, CA, USFull stack
Trueplace (W22) • Supercharging professionals for interviews.ContractVancouver, BC, CA / Vancouver, British Columbia, CA / San Francisco, CA, US / Los Angeles, CA, US / Toronto, ON, CA / Toronto, Ontario, CA / New York, NY, US / Remote (US)
Forage (S21) • Payments infrastructure for government benefitsFull-timeSan Francisco, CA (Hybrid) / Remote (US; CA)Frontend- Forage (S21) • Payments infrastructure for government benefitsFull-timeSan Francisco, CA (Hybrid) / Remote (US; CA)Backend
- Forage (S21) • Payments infrastructure for government benefitsFull-timeSan Francisco, CA (Hybrid) / Remote (US)Backend
- Forage (S21) • Payments infrastructure for government benefitsFull-timeSan Francisco, CA (Hybrid) / Remote (US)Backend
- Forage (S21) • Payments infrastructure for government benefitsFull-timeSan Francisco, CA (Hybrid) / Remote (US)Full stack
- Forage (S21) • Payments infrastructure for government benefitsFull-timeSan Francisco, CA (Hybrid)
Brighterway (S24) • Streamlining the record review process for physicians in medlegal…InternshipSan Francisco, CA, US / Remote (US)
PromptArmor (W24) • LLM Security and Compliance(1 day ago)Full-timeSan Francisco, CA, USFull stack
Dalus (W25) • AI-Powered Hardware System Design SoftwareFull-timeSan Francisco, CA, USFull stack
Olive (W25) • Build internal tools for your data with natural language.Full-timeSan Francisco, CA / Remote (US)Full stack- Olive (W25) • Build internal tools for your data with natural language.Full-timeSan Francisco, CAFull stack
Paradigm (W24) • A reimagined workspace with AI at its coreFull-timeSan FranciscoFull stack- Paradigm (W24) • A reimagined workspace with AI at its coreFull-timeSan Francisco
- Paradigm (W24) • A reimagined workspace with AI at its coreFull-timeSan Francisco, CA, USFull stack
Solidroad (W25) • AI agents for sales and support teams, starting with training and QA.(2 days ago)Full-timeSan Francisco, CA, USFull stack- Maitai (S24) • Reliable, self-improving enterprise AIFull-timeRedwood City, CA, US
Eloquent AI (X25) • Agentic AI Platform for Financial ServicesFull-timeSan Francisco, CA, US / London, England, GB / Remote (US)Machine learning- Eloquent AI (X25) • Agentic AI Platform for Financial ServicesFull-timeSan Francisco, CA, US / London, England, GB / Remote (US)Full stack
- Eloquent AI (X25) • Agentic AI Platform for Financial Services(4 days ago)Full-timeSan Francisco, CA, US / London, England, GB / Remote (US)Full stack
- Replo (S21) • Online commerce for the AI ageFull-timeSan FranciscoFull stack
Bits to Atoms (S24) • Match job seekers to roles at deep technology startups.(6 days ago)Full-timeSan Francisco, CA, US / Los Angeles, CA, US
Replicate (W20) • Run machine learning models in the cloudFull-timeRemote - United States / San Francisco, CA, US / Remote (US; CA)Full stack- Volley (W18) • Voice AI games on smart speakers, TVs, and mobileFull-timeSan Francisco, CAWeb design
- Volley (W18) • Voice AI games on smart speakers, TVs, and mobileFull-timeSan Francisco, CAWeb design
Firecrawl (S22) • The easiest way to extract AI ready data from the webContractBoston, MA, US / San Francisco, CA, US / Remote (US)- Firecrawl (S22) • The easiest way to extract AI ready data from the webFull-timeSan Francisco, CA, US / Boston, MA, US / Remote
Onyx (W24) • Open Source AI Assistant and Enterprise SearchFull-timeSan Francisco, CA, USMachine learning
Distro (S24) • The AI co-pilot for sales reps at industrial wholesale distributors.(about 8 hours ago)Full-timePalo Alto, CA, USMachine learning- Distro (S24) • The AI co-pilot for sales reps at industrial wholesale distributors.(about 7 hours ago)Full-timePalo Alto, CA, USFull stack
- Distro (S24) • The AI co-pilot for sales reps at industrial wholesale distributors.(about 8 hours ago)Full-timePalo Alto, CA, USFrontend
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