Founding Engineer - Full Stack
$150k - $250kClera
Job Description
Job Description
About the Role
A Y Combinator-backed AI startup is looking for a Founding Engineer – Full Stack to join a small founding team at the ground floor. The company operates at the intersection of AI research, product, and engineering — building tools that help brands understand and shape how large language models perceive and represent them. This is a rare opportunity to co-define engineering culture and practices from day one in a fast-moving, high-impact environment.
What You'll DoOwn problems end-to-end — from customer insight and product requirements all the way through research and infrastructure.
Maintain a tight feedback loop with customers and the founding team; ship features quickly and iteratively.
Help define and shape the engineering team's culture, patterns, and best practices.
Continuously explore and reinvent how engineering teams work effectively alongside AI agents.
Required
1+ years of experience on engineering teams (2+ preferred), including at least one stint longer than 18 months in a strong startup or scale-up environment.
Full-stack proficiency — comfortable owning customer-facing UI through to infrastructure.
Hands-on experience with React, Python, Terraform, and AWS .
Experience building agentic systems or working with LLMs in production.
Strong product sense and design instincts; able to translate customer needs into shippable features.
Startup experience or self-driven personal projects that demonstrate initiative and high agency.
Must be a US citizen or have US work authorization (no visa sponsorship for candidates outside the US).
Nice to Have
Scientific or academic research background.
Direct customer-facing experience in a technical role.
Enthusiasm for adopting AI-powered coding and productivity tools.
Salary: $150,000 – $250,000 USD annually (depending on experience)
Early-stage equity
Visa sponsorship available for eligible candidates
This role is on-site in San Francisco, CA . Candidates must be based in or willing to relocate to San Francisco.
- ...the company | Founding Engineer | San Francisco, CA | Company: We are building an executive voice engine (the company). This is a multi... ...and a growing agency channel, mostly word of mouth. Role: Full AI stack + product. Agent orchestration, evals, RAG, prompt chaining...Fullstack
$205k - $250k
...tldr: Kiloforge is looking for exceptional generalist founding engineers (full‑stack, AI, etc.) who are scrappy, have taste, and love building things to create the next generational company. what is Kiloforge: We’re building a new kind of company. Kiloforge is a company...Fullstack- ...value. Backend‑heavy, AI‑native, able to go full stack when needed. No hand‑holding. No waiting for specs. You're a full‑stack engineer, an AI engineer, and a product engineer in... ...will have. A seat at the table. This is a founding role, you'll shape the product and the...Fullstack
- ...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
$140k - $180k
...About the RoleJoin a small, high-velocity founding team as engineer #4, working directly with the CTO and fellow founding engineers at an AI-... ....What You'll DoOwn end-to-end product features across the full stack, from architecture and data modeling through to frontend deliveryShip...FullstackVisa sponsorship$200k
...Founding Full Stack Engineer, build the layer that turns a trading thesis into settled action Are you a backend-leaning engineer who's worked at a genuinely high‑pedigree, talent‑dense startup, and knows what great engineering culture actually looks like from the inside...FullstackVisa sponsorship- ...internet – and Caylex will be the infrastructure powering it. The Role As a Founding Engineer, you’ll play a central role in shaping both our product and engineering culture. You will: Work full-stack across infrastructure, integrations, and user-facing product features....FullstackFull timeWork at office
$200k
...We’re looking for a highly ambitious Founding Engineer to join a fast-growing AI startup building the next generation of developer workflows... ...Strong experience with TypeScript and React Solid full‑stack engineering background Ability to work independently with high...FullstackFull time$180k - $280k
...USD280000 per annum + PTO + Benefits + 401(K) + Equity Founding Senior Software Engineer $180,000 - $280,000 + 1-2% Equity + 401(k) + Benefits +... ...site (5 days/week) Are you a Senior Software Engineer with full stack experience, looking to join one of the strongest YC...FullstackRelocationFlexible hours- ...About the Role We're looking for founding Machine Learning Engineers (MLEs) to own and improve our core action... ...problems Comfortable working across the stack — our system spans a Chrome extension... ..., Pinecone) and hybrid search Full-stack development experience (TypeScript...Fullstack
$175k - $225k
...Join a fast-moving, early-stage consumer AI startup as a Founding Engineer — a rare, high-impact position working directly alongside... ...enormous scope and ownership. What You'll Do Build across the full application stack alongside the founder, design team, and other engineers....FullstackRemote workVisa sponsorship$200k
...market investing. As a Senior Software Engineer on Meridian, you’ll own the technical design... ...through launch and iteration. This is a founding engineer role on a zero‑to‑one product... ...from scratch in a 0‑1 environment Full‑stack generalist or frontend specialist with working...FullstackWork at office2 days per week- ...This is a 1 of 1 role. We're looking for a founding engineer to work alongside a Thiel Fellow founder... ...‑person in San Francisco. Think a room full of only the smartest people you've met,... ...databases, etc. You've built apps full stack. Frontend proficiency and design taste is...FullstackInternshipWork at office
$170k - $250k
...Founding Engineer Location: San Francisco, CA (Mission District) Work Arrangement: Full-Time | On-site (5 days/week) Compensation: $170,000–$250,000 Base Salary + Equity (0.25... ...product experiences. Contribute across the full stack when needed. Help establish engineering best...FullstackFull timeImmediate startVisa sponsorship$180k
...The Role We're hiring a Founding Engineer to join an early‑stage company building AI‑powered software... ..., and ship product features across the stack, from database design and APIs through... ...and modern web application development Full‑stack experience across frontend applications...FullstackWork experience placement$140k
About The Role Hiring a full‑stack/founding engineer to join our team focused on product engineering and shipping new features. Things you'll be working on Build out agentic workflows that design, build, and optimize online shops Build out product & payments processing...FullstackWork at office- ...Role As an AI‑focused Software Engineer at Double Blind Bio, you will... ...automate clinical workflows Own the full eval lifecycle—define what “... ...Architect and optimize full‑stack applications, including... ...working in early‑stage startups or founding teams Deep expertise in at least...FullstackWorldwide
- ...We’re hiring a Founding Full-Stack Engineer to join our team! This role is full-time in San Francisco at our Presidio office. Gauge helps companies show up in more AI answers. Search traffic is shifting away from Google into AI chat, and companies are figuring out how...FullstackFull timeWork at officeImmediate startShift work
- 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
- ...Founding Engineer (Full Stack) Location: San Francisco Bay Area Type: Full-Time Compensation: Competitive salary + meaningful equity (founding tier) About the role We’re hiring a founding full stack engineer to help architect and build the platform from day one. This is...FullstackFull time
- ...years. Location: San Francisco Bay Area. JobType: full-time. We're looking for a highly motivated Founding Engineer to join us at the ground floor and help build our... ...to build integrations, internal tools, and full-stack features when required Own core product features...FullstackFull timeWeekday work
- tl;dr: Interface is looking for generalist founding engineers (ml, data, full-stack) who are scrappy, push boundaries and have a need to win. We need to work hard and build quickly to win. We want people to challenge our ideas and build alternatives. LFG who you are...FullstackWork at office
$120k - $170k
...in the eCommerce industry, are hiring a Founding Engineer to join their growing team in San Francisco. The successful candidate will take full ownership of the product, from system architecture... ...production software, ideally full-stack with TypeScript/React and strong backend...Fullstack$130k - $200k
Founding Engineer - Full Stack (AI x Developer Tools) Location: San Francisco, CA (Hybrid - 4 days/week in person) Compensation: $130,000 - $200,000 base Equity: 0.10% - 1.75% Work Authorization: Open to visa sponsorship in exceptional cases Type: Full-time Start Date:...FullstackFull timeImmediate startVisa sponsorshipWork visa- ...of the brightest minds in the industry. About The Role As a Founding Engineer at Mentum, you’ll have the chance to shape the future of our... ..., focusing on reliability, scalability, and innovation. Full-Stack Development: Write high-impact code across the stack—backend...FullstackWork at officeShift work
$180k - $220k
...quickly. You might be a fit if you’ve… Built 0→1 at an early-stage startup and owned an entire product slice. Are a true full-stack generalist who enjoys moving across data, APIs, and UI as the problem demands. Shipped LLM-based features (or credible prototypes...FullstackFull timeRemote work$180k - $300k
...clinics across 5 states to deliver care to over 5,000 patients at full capacity. We've stood up legal infrastructure to operate... ...products that got real traction or scaled meaningful systems. Full‑stack depth across backend, databases, security, and ideally infrastructure...FullstackVisa sponsorship- ...organization. Our platform, combined with a team of forward‑deployed engineers and strategists, delivers intelligent workflows, autonomous... ...into an intelligent, self‑improving system. You’ll operate full‑stack, shape system architecture, and ship production‑grade software...Fullstack
$175k
Overview Full Stack: Typescript, Node in San Francisco. Needs strong Full Stack Experience. Responsibilities / Qualifications 4+ years... ...in-person, just like our schools. You have a strong grasp of engineering fundamentals. We use a healthy combination of TypeScript,...Fullstack- ...Description Job Description About the Role We're seeking a Founding Engineer to join an early-stage startup at a pivotal moment. You'll... ...our product from the ground up. What You'll Do Own full-stack engineering responsibilities across the product...Fullstack
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Founding Engineer - Full Stack. Be the first to apply!

