Founding Engineer jobs in United States
85 founding engineer in United States jobs are open right now across 12+ hiring companies. The most recent posting was confirmed live 12h ago.
The most active employers are Clera (34), Pear VC (6), AIFund (3), Sailor Health (2).
37 of them (44%) publish a salary. For annual pay in USD, the median midpoint is $200k, and the middle 80% of ranges sit between $160k and $280k (37 postings).
Who is hiring
Also browse
Newest openings
Founding Engineer
About the Role Join an early-stage AI/ML developer tooling team as its first full-time engineer outside the founding group. You will build systems that detect failures in AI agent conversations and generate verified fixes, helping customers ship more reliable software. What
Founding Engineer
About the Role Join an early engineering team building AI infrastructure for service businesses. As the first engineering hire, you will work directly with the founder to evolve a functioning product into reliable, scalable infrastructure for AI agents and the people who use
Founding Engineer
About the Role Join a small, product-focused team as its first full-time engineering hire. You will shape the technical direction of an early-stage insurance technology company, building AI agent systems and product capabilities that address meaningful industry needs. What
Founding Engineer - Infrastructure
About the Role This is the first infrastructure hire at a seed-stage agentic integration platform, working directly with the CTO on a clear leadership track. You will own the full infra and platform layer from day one, setting the patterns every future infrastructure hire builds
Founding Engineer
About the Role You'll join as the second engineering hire on a founding team building AI agents for industrial ingredient manufacturers, a sector responsible for the ingredients in virtually every food product on the market. This is a ground-floor role where you'll work directly
Founding Engineer
About the Role This is a founding engineering role at an early-stage hardware-software startup building AI-assisted PCB design tooling and EDA automation from the ground up. You will own the core platform, from design tools to manufacturing pipeline integrations, working
Founding Engineer
About the Role This is the first engineering hire at an early-stage B2B SaaS company building an agentic integration platform used by paying enterprise customers. You will own core systems end-to-end and set the engineering patterns that every future hire will build on, working
Founding Engineer
About the Role This is a founding engineering role at an early-stage AI infrastructure startup, where you will help build the platform powering the next generation of AI-native service businesses. You will work directly with the founder on a small, high-trust team with no legacy
Founding Engineer
About the Role This is the first engineering hire at an early-stage AI company building automated software factories for enterprise clients. You will work directly with the two founders to take the full product from raw desktop recordings to shipped production software, owning
Founding Engineer
About the Role This is a founding engineer role at an AI-native fintech startup building an autonomous system that understands businesses, finds buyers, structures financing, and manages deals end-to-end. You will own the most critical technical challenges at any given time and
Founding Engineer
About the Role This is a founding engineering role at a three-person, Y Combinator-backed startup building an AI-native financial research terminal focused on the healthcare sector. You will work directly alongside the founders, owning the infrastructure, tooling, and agentic
Founding Engineer
About the Role This is a founding engineering seat at a fast-growing AI-native startup building multi-modal sales agents across voice, SMS, and email for a focused vertical market. You will own one of four core domains end-to-end, making product and architecture decisions
Founding Engineer (AI/ML)
About the Role This is a founding engineering role at a pre-seed AI recruiting marketplace, where you will own the entire intelligence layer: the recommendation systems, ranking algorithms, and LLM-powered matching that connect candidates with the right roles. It sits at the
Founding Engineer
About Fernstone: Fernstone is building a new kind of insurance company: we combine AI with expert advisors to place insurance faster and at better terms. We think AI will fundamentally reshape how insurance is bought and sold – and the new winners in this $1T category will
Founding Engineer, Product
About Freckle Freckle is the data and workflow layer for GTM teams. Users tell an agent in Claude, Codex or our app what they want, and Freckle builds and runs it: pulling lists, enriching them across dozens of data providers, scoring with AI agents, and writing results back to
Founding Engineer, Platform
About Freckle Freckle is the data and workflow layer for GTM teams. Users tell an agent in Claude, Codex or our app what they want, and Freckle builds and runs it: pulling lists, enriching them across dozens of data providers, scoring with AI agents, and writing results back to
Founding Engineer
About Inspira Education Inspira Education Group is one of the fastest-growing edtech startups in the US. We started with a simple mission to democratize access to high-quality coaching so that every student in the world has an equal opportunity to access the best opportunities.
Founding Engineer
About Eventual Eventual is a well-funded, seed-stage fintech startup on a mission to improve American housing unaffordability. We're starting with a narrow but high-impact niche: insurance. With insurance prices up dramatically over the last five years, home insurance represents
Founding Engineer
PCT partners with early-stage, venture-backed companies looking for exceptional engineers to join at the earliest stages of their growth. We're always interested in connecting with Founding Engineers who are excited to build from the ground up, shape technical direction, and
Founding Engineer
The opportunity Hedge is hiring a founding engineer to build the agents that run an insurance company and the infrastructure that lets them scale. You’ll build systems that read messy submissions, chase missing information, navigate carrier requirements, and move accounts from a
Founding Engineer
What You’ll Do Lead the design and implementation of end-to-end features across our web applications and backend services. Build internal evaluation infrastructure for AI and LLM healthcare finance applications. Architect and maintain scalable, secure, and reliable systems that
Founding Engineering Lead
Founding Engineering Lead About Altis Altis provides independent, institutional-grade diligence research on Series A and later-stage companies for venture investors. Private investors are beginning to rely on the proprietary research, experts, and data that is only available on
Founding Engineering Lead
About Sylvan Sylvan is building autonomous revenue teams. We help B2B companies grow and protect revenue from their existing customers by identifying revenue-driving signals and deploying agents that act on them at the exact moment, across every account. We work with customers
Founding Engineer
About Syntro AI is walking, driving and flying into the physical world: humanoids, robotaxis, drones and a new class of autonomous machines. Each machine is built from thousands of parts. Sourcing just one still means trade shows, cold calls and endless scrolling on distributor
Founding Engineer (AI)
At Momentic, we’re building the future of quality. We’re building the all-in-one quality platform powered by state of the art agents to help our customers ensure quality at every stage of the SDLC. Top engineering teams at companies like Notion, Retool and Webflow use Momentic