Founding Engineer Jobs in San Francisco, CA

If youre a Full Stack Engineer looking for meaningful work real ownership and the chance to build something foundationalnot just another feature factorythis is the kind of opportunity thats increasingly rare.Join a small elite team tackling one of the internets hardest problems: trust and safety at...

About the Company Our client is a San Francisco-based AI-native startup building a new generation of intelligent systems for knowledge workers. Their product is designed to go beyond traditional AI tools it understands user context prioritizes workflows and proactively supports decision-making act...

Job DescriptionFounding Engineer (AI / Full Stack)San Francisco USA (Relocation Visa Sponsorship)$130000 $160000 EquityRevive Recruitment are proud to be partnered with an early-stage AI / HR Tech start-up backed by pre-seed funding building next-generation AI agents to transform how companies co...

NegotiateAI is a portfolio company of Menlo Ventures.About NegotiateAIWere building a revolutionary enterprise platform to transform procurement. Our mission is to transform procurement into a core strategic function starting with the manufacturing and industrial verticals. Our focus is to streamlin...

What We DoShepherd is an AI-native commercial insurance platform transforming how high-hazard industries get covered. Our mission is to make risk frictionless for the builders and operators shaping the physical world protecting progress from concept through construction and into decades of operatio...

FOUNDING PRODUCT DESIGNERAI Startup Backed by Top-Tier Silicon Valley InvestorsPalo Alto CA Hybrid (3 days in-office)$190000 $250000 Meaningful EquityThis is not a typical design role.This is for someone who wants to build something that matters from day one.Were working with a high-growth ventu...

About UsGumloop is the AI automation platform for the enterprise. We give teams the power to easily build and deploy AI agents in Slack Microsoft Teams or standalone that automate real work across hundreds of integrations with no engineering background required. The platform has three pillars:1. Age...

This is a job that Jill our AI Recruiter is recruiting for on behalf of one of our customers.She will pick the best candidates from Jacks network.The next step is to speak to Jack.Job Title: Senior Frontend Engineer at Salary: $180k-$220k EquityCompany Description: - Series A AI infrastructure st...

CoreWeave is The Essential Cloud for AI. Built for pioneers by pioneers CoreWeave delivers a platform of technology tools and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs startups and global enterprises CoreWeave combines superior infrastructure per...

About UsOur mission: Eradicate health disparities by empowering the teams who care for underserved families.BridgeHealthAI partners with Federally Qualified Health Centers (FQHCs) and community organizations to ensure every patient gets the care and benefits they deserve without drowning care teams...

Job DescriptionFounding AI Engineer (Agentic AI Reinforcement Learning)Stealth AI Startup AI for Semiconductor EngineeringSan Francisco Onsite$180k $250k base 0.40.75% equityEarly Team Real Production CustomersThis isnt another LLM wrapper job.Were working with a stealth AI startup building ag...

Full Time - Founding Engineer(Back-End) in San Francisco CA - Hybrid Role Duration: Full Time / Permanent --- No contractors will be allowed for this role. Salary: 180000.00 USD - 260000.00 USD Location: San Francisco CA - Hybrid Role Our client an enterprise fintech startup focused on the in...

Job Title: Founding Full-Stack Engineer Job Location: San Francisco CA (Onsite) Job Type: Full-Time Permanent Job Overview As a Founding Full-Stack Engineer in our YC-backed content platform located in San Francisco you will have the unique opportunity to build and scale core product featur...

AI / Software Engineer (Senior or Staff) Location: San Francisco CA Employment Type: Direct Hire Full Time Work Arrangement: 100% Onsite Compensation: $200000 $300000 base salary equity HireNow Staffing is actively recruiting a seasoned highly skilled AI / Software Engineer (Senior or Staff level...

This is a job that Jill our AI Recruiter is recruiting for on behalf of one of our customers.She will pick the best candidates from Jacks networkThe next step is to speak to Jack.Job Title: Member of Technical StaffCompany Description: Truvo - AI-native insurtech startup reinventing insurance broker...

About HUDHUD (YC W25) does RL and evaluations for frontier AI agents. Our HUD agentic RL platform is used by frontier labs Fortune 500 companies and startups. We have grown revenue and raised funding from YC A16Z and other leading VCs to scale fast.About the roleHUDs product sells itself to the righ...

About HUDHUD (YC W25) does RL and evaluations for frontier AI agents. Our HUD agentic RL platform is used by frontier labs Fortune 500 companies and startups. We have grown revenue and raised funding from YC A16Z and other leading VCs to scale fast.About the roleIf you would like to be at the fronti...

About Us Were a stealth team of founders and AI researchers building the next generation of intelligent software agents for everyday use. Our focus is creating trustworthy consumer-grade systems that can operate across apps tools and workflows to help people accomplish more. The team includes engine...

Founding EngineerJob title: Founding EngineerLocation: San Francisco CA (in-person only relocation available)About the CompanyThey help speech occupational and physical therapists build their own private practices. Their AI-powered business-in-a-box handles everything from business setup and insuran...

This is a job that Jill our AI Recruiter is recruiting for on behalf of one of our customers.She will pick the best candidates from Jacks networkThe next step is to speak to Jack.Founding EngineerCompany Description: Fig AI - AI agents for food manufacturingJob Description:As the Founding Engineer a...