Startup jobs in Silicon Valley
South of the city, the portfolio runs deep: Sunnyvale hardware floors, Peninsula AI labs, San Mateo product teams. Every open role between San Mateo and San Jose collects here. San Francisco proper has its own page.
1491 open roles · Search and filter on the board →
The speedrun talent teamWe're hiring a Product EngineerContract. Students and co-ops welcome. Build the tools job seekers use.>> send this to the best builder you know <<See the role1491 roles · a16z portfolio plus wider market
Security Software Engineer Project Intern (Product Security) - 2026 Start (BS/MS)
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AI Product Manager Project Intern (TikTok LIVE-Ecosystem Governance) - 2026 Start (BS/MS)
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Frontend Engineer Project Intern (TikTok Multimedia Arch) - 2026 (BS/MS)
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Junior Architect Designer
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On-device AI Frameworks Engineer (Intern)
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Software Engineer, ML Infra (Junior & New Grad)
Wider market $125k - $175k Apply →
Forward Deployed Infrastructure Engineer, New Grad - US Government
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Software Engineer, AI Platform - New Grad
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Software Engineer, AI Platform - Intern
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Software Engineer Intern
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GTM Intern, Strategy & Operations
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PhD Research Intern
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Research Engineer Intern (Ads ML Infra) - 2026 Start (PhD)
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(General Hire) Research Scientist Intern (Monetization Technology) - 2026 Start (PhD)
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Machine Learning Engineer Intern (TikTok Search) - 2026 Start (PhD)
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Machine Learning Engineer Graduate - Global E-commerce Recommendation/Search - 2026 Start (PhD)
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Research Scientist Intern (Ads Integrity) - 2026 Start (PhD)
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Software Engineer, Internship - Infrastructure
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Software Engineer, New Grad - Infrastructure
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Research Scientist Intern (Monetization GenAI) - 2026 Start (PhD)
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Product Designer Project Intern (TikTok-Design-UX) - 2026 Start - Project Intern (TikTok Design) - 2027 Start
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Software Engineer Intern (Recommendation Infrastructure) - 2026 Start (PhD)
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AI Research Internship - LLM
Wider market $100k - $140k Apply →
Software Engineer Project Intern (Platform efficiency) - 2026 Start (BS/MS)
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Researcher Intern (Vision and Graphics) - 2026 Start (PhD)
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Software Engineer Graduate (Data Arch - Data Ecosystem ) - 2026 (PhD)
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Research Scientist Graduate (TikTok Recommendation-Agentic AI) - 2026 Start (PhD)
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Research Scientist Intern (TikTok Recommendation-LLMs, RL, GenAI) - 2026 Start (PhD)
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Software Engineer, New Grad - Defense
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Research Scientist in Generative AI Graduate (Intelligent Creation) - 2026 Start (PhD)
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Research Scientist Graduate - (Trust and Safety, CV/NLP/Multimodal LLM) - 2026 Start(PhD)
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(General Hire) Research Scientist Graduate(TikTok Recommendation) - 2026 Start (PhD)
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(General Hire) Machine Learning Scientist Graduate (TikTok Recommendation) - 2026 Start (PhD)
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Research Scientist Graduate (TikTok Recommendation-Large Recommender Models) - 2026 Start (PhD)
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Software Engineer Graduate (Data Arch - AI/ML Infrastructure) - 2026 Start (PhD)
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Chemist - New College Graduate
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Research Science Intern, Financial Innovation Lab
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ML Research Intern
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Product Designer, New Grad - US Government
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Software Engineer, Internship - Defense Tech
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Software Engineer, Internship
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End of a16z portfolio plus wider market results · 2071 more roles beyond this scope
Roles here come straight from each speedrun portfolio company and refresh daily. Prefer warm intros over cold applying? Join the speedrun talent network: one signup, and we route you to the founders most likely to need you.