Founding Engineer - Full Stack
Zero21
Hi, thanks for checking out our job board! If you're an entrepreneurial-minded builder who loves to work with great people to solve wicked problems that have a meaningful impact, read on to see if this position might be a good fit for you! If healthcare were built today, it would look completely different. Personalized. Preventative. Performance enhancing. With an iconic, category-defining brand and cult following. We’re on a mission to change the way people engage with their health, for life. To do this, we’re building the most comprehensive and convenient healthcare system on the planet – a thoughtfully designed, all-in-one platform for easily improving your personal health.
THE ROLE
As Superpower’s founding engineer, you will have a unique opportunity to shape the vision and direction of the company. We’re looking for a full stack developer who is product-minded and has entrepreneurial DNA and early startup experience. It’s a plus if you are passionate about digital health and longevity.THE TEAM
You will be joining an experienced team of multi-time founders – our CEO started two prior companies worth >$500m and our founding team is ex. Amazon, YCombinator, Goldman Sachs, Harvard Med, Inside Tracker, and One Medical. We’re based in San Francisco and have an office in SOMA. The company is well-funded by investors like Susa Ventures, Long Journey Ventures, Balaji Srinivasan, Cyan Bannister, Arielle Zuckerberg, Cameron and Tyler Winklevoss, Dr. Jordan Shlain (Founder of Private Medical, Silicon Valley’s top concierge medical company), Justin Mares, the Founder of Doordash and others. Our Tech Stack Typescript mono repo Yarn workspaces ES linting Jest testing framework Webpack Storybook React, express node js AWS, Fargate, Infra as code, Docker Data schema built on FIHR CI/CD github actions Tailwind css Linear, Figma, Notion, Slack #J-18808-Ljbffr Zero21- ...An early-stage AI startup in San Francisco is seeking a Founding Engineer to help architect and build their platform from scratch. This role... ...-level equity. Ideal candidates should be experienced full-stack or backend engineers who are ready to work in a fast-paced environment...Fullstack
- Trajectory, based in San Francisco, is seeking a Founding Generalist Engineer to craft the product experience for continual learning. The role... ...industry-leading partners. Ideal candidates will have strong full-stack engineering skills and experience with AI-powered...Fullstack
- ...Role You'll be one of the first two founding engineers setting the technical culture for a fast... ...You'll work across the entire technical stack with significant ownership and autonomy.... ...back into the product Handle the full spectrum of early-stage work: frontend bugs...FullstackFull timeRemote work
- ...technical genius. He trained the first-ever image editing AI in the world. Before Y/n, I was the founding designer at Substack. We're looking for a founding full-stack engineer to own most of the app surface and our personalized recommendations infrastructure. This is a...FullstackRelocation
$160k - $220k
...A pioneering tech company in San Francisco is seeking a Founding Full-Stack Engineer. This hands-on role involves building end-to-end AI-native systems in collaboration with product teams and early customers. The ideal candidate has over 7 years of engineering experience...Fullstack$160k - $250k
A startup focused on AI integration is seeking a Founding Engineer based in San Francisco to build essential infrastructure for web automation... ...legacy systems. The role requires a backend-leaning full-stack engineer with expertise in Python and React. Competitive compensation...Fullstack- A cutting-edge AI startup is seeking a Founding Engineer to build the technical foundation for a platform transforming the contracting industry... ...high-value RFPs. The ideal candidate will have proven full-stack engineering expertise, operate across the entire stack, and...Fullstack
$130k - $170k
...A tech-driven event planning company seeks a Founding Engineer to manage full-stack development and enhance their AI platform. The ideal candidate has experience in modern frameworks and exhibits adaptability in dynamic settings. Responsibilities include expanding the...Fullstack- As a founding member of our engineering team, you’ll play a pivotal role in building the data and evaluation infrastructure that powers frontier models... .... Experience building production‑grade backend / full‑stack systems. Deep understanding of scalability challenges and...FullstackImmediate start
- ...the cost of traditional solutions. The founding team previously built and scaled products... ...Sardine. The opportunity As our Founding Engineer , you will define, build, and maintain... ...-quality products. Key responsibilities Full Stack & End-to-End – Design, implement, and operate...Fullstack
- ...A technology company in San Francisco is seeking a Founding Fullstack Engineer to build scalable systems that automate complex decisions in manufacturing... ...sense, and the ability to ship production code across the stack. The role requires onsite work in SF, with a supportive...FullstackRelocation
$160k - $210k
Overview Founding Engineer | AI x Healthcare | San Francisco I’m working with an early-stage startup building technology that’s helping improve... ...experience Experience building AI agents/products Strong full-stack fundamentals (TypeScript/React preferred) Startup mentality...Fullstack$120k - $200k
...Join to apply for the Founding Engineer - Full Stack role at Andy AI (W24) Join to apply for the Founding Engineer - Full Stack role at Andy AI (W24) This range is provided by Andy AI (W24). Your actual pay will be based on your skills and experience — talk...FullstackFull time$225k
Founding Engineer ($225k+ + Equity) at well-funded healthcare AI startup Company Description Well-funded healthcare AI startup Job Description... ...from top‑tier VCs. This is a rare opportunity to build a full‑stack hardware and software ecosystem from scratch for a June 2026...Fullstack- ...Backend‑heavy, AI‑native, but able to go full‑stack when needed. No hand‑holding. No waiting... ...for specs. You need to be a full‑stack engineer, an AI engineer, and a product engineer... ...will have A seat at the table. This is a founding role. You'll shape the product and the...Fullstack
- ...A leading technology firm in San Francisco is seeking a Founding Full-Stack Software Engineer to manage end-to-end features on their AI-native platform. The role requires engagement in both frontend and backend development, using technologies such as React, Node.js, and...Fullstack
- Be the first engineer at Wildcard. This is not a role for someone looking to be handed a... .... In a direct way. We are looking for a founding engineer who has already seen some version... ..., Series A, or Series B startup strong full-stack experience, especially with TypeScript,...FullstackShift work
- ...Founding Engineer - Baton AI Location: San Francisco, CA (In-Person) Experience Level: 3+ years (Full-Stack Engineering) About Baton AI Baton AI (getbaton.ai) is building the enterprise automation platform for cross-application workflows. We're starting...Fullstack
$170k - $350k
Job Title: Founding Engineer Salary: $170k-$350k + Equity Company Description: well-funded AI infrastructure startup Job Description: You... ...systems, with the ability to move quickly across a full-stack TypeScript and Kubernetes environment. Founder mentality with...Fullstack- Hi, I’m Nik. I’m looking for a world‑class founding engineer to build Omi with me. Omi is AI for your real life. Think: wearable memory,... ...com What You’ll Do As the first engineer , you’ll: Own the full stack (Flutter/React Native, Python, firmware, BLE, backend, etc —...Fullstack
$130k - $180k
...Founding Engineer - Full Stack, Product Leaning 1 week ago — Be among the first 25 applicants. This range is provided by Menlo Ventures. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range $130...FullstackFull time$50k
...not manage. If you want to work on hard problems with a small team that ships, this is the place. The Role As a founding full-stack engineer, you'll own the application layer of our platform - from observability and permissions to the control plane and user-facing...FullstackWork at office$200k
...customers. She will pick the best candidates from Jack's network The next step is to speak to Jack. Job Title: Founding Engineer - Full Stack Salary: $200K+ TC + Equity Company Description: Muro AI - AI-native agents for the $13T construction industry...Fullstack- ...About the Role You'll operate as a founding engineer, owning problems end-to-end. This is an... ...just contribute to them Move across the stack as needed - frontend, backend,... ...Areas of Focus: Application Engineers (Full-stack): Build fast, expressive interfaces...Fullstack
$130k - $160k
...Job Description Founding Engineer (AI / Full Stack) San Francisco, USA (Relocation + Visa Sponsorship) $130,000 - $160,000 + Equity Revive Recruitment are proud to be partnered with an early-stage AI / HR Tech start-up backed by pre-seed funding, building...FullstackWork at officeRelocationVisa sponsorship- ...working directly with the founder across the full stack - but your deepest impact will be on the... ...‑grade from day one. About The Founder Founded by repeat founder Alisa Rae. Before... ...(acquired by Canva), and was a Software Engineer at Atlassian. Lucent is founded on her conviction...Fullstack
$160k - $270k
...enterprise search has evolved into a full-scale Work AI ecosystem,... ...of our Forward Deployed Engineering Team, you will partner directly... ...implementations and be among our founding FDEs who establish our... ...deployment at scale ~ Strong full‑stack programming skills and...FullstackHome officeFlexible hours3 days per week- ...Jack's network. The next step is to speak to Jack. Job Title Founding Engineer Company Description Cascade - a16z Speedrun-backed AI... ...architecture from the ground up. What you will do Architect and build full-stack features that ingest and analyze thousands of complex...Fullstack
$180k - $250k
Job Title: Founding Deployed Engineer Salary: $180K - $250K + 0.3% - 0.8% Equity Company Description: BUILD, Inc. - AI for the Built World, backed... ...systems in a fast-paced environment. Demonstrates strong full-stack capabilities and comfort working across the stack, from...Fullstack- ...and founders to co‑create both product and engineering direction What We’re Looking For Proven experience as a senior or lead full‑stack engineer, with a track record of shipping... ...‑calling systems Early‑stage startup or founding engineer experience Familiarity with...Fullstack
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