Founding Full-Stack Engineer for AI API Platform
$150k - $220kOrthogonal
Orthogonal is looking for a Founding Engineer to design and build across the entire stack from backend APIs to frontend products in San Francisco. You will collaborate closely with the founders and have an opportunity to shape engineering culture. The ideal candidate has full-stack experience, is comfortable with REST APIs and modern frontend frameworks like Next.js and React, and holds a BS in Computer Science or a related technical field. Compensation ranges from $150K to $220K plus equity. #J-18808-Ljbffr
$50k
A dynamic AI startup in San Francisco is seeking a founding full-stack engineer to own the application layer of their platform. The role involves building user-facing dashboards, designing APIs, and leading architectural decisions. Ideal candidates will have experience...Platform$180k - $230k
...B SaaS startup in the AI-powered sales automation... ...is hiring its first Founding Engineer. You'll join the CTO as... ...problems across the full stack, from LLM orchestration... ...and screen sizes. The Platform: Customer-facing... ...in Python (services, APIs, backend infrastructure...PlatformRemote work- ...-person startup with their first hire: a founding full-stack engineer. Their product provides SMBs with dedicated tax advisers and AI-optimized tax strategies. The role will work... ...Collaborate directly with clients and platforms Who you are: Customer and product obsessed...Platform
- ...technology startup based in San Francisco is seeking a Founding Engineer (Full Stack) to architect and build their platform. This role offers significant equity and... ...architecture while working on large-scale data systems and AI-native agents. Ideal candidates will have 5+...Platform
- ...Founding Full-Stack / Product Engineer (Onsite — San Francisco, CA) Location: San Francisco, CA (onsite) Employment... ...to customers, and shaping what the platform becomes. This is a true 0-1/1-n role... .... Background in sales tech, AI, or B2B SaaS. Early-stage/founding engineer...PlatformFull time
- A mission-driven healthcare startup in San Francisco is seeking a Founding Engineer (Full-Stack) to lead the development of an AI-powered platform. The role requires strong skills in TypeScript and React, with responsibilities including end-to-end application development...Platform
- A healthcare excellence platform is seeking a Founding Full Stack Engineer to design and build critical infrastructure and features that improve nurse retention... .... You will develop multi-hospital data models and AI-driven workflows using TypeScript, React, and Next.js....Platform
- The Role As a Founding Engineer, you’ll work directly with the founders to architect, build, and scale the platform from 0 to 1 . You’ll take full ownership of core features, shape the product roadmap... ...UIs — pushing the envelope on AI product patterns and moving beyond...Platform
- ...Senior AI/ML Engineer At Solum Health, we're on a mission... ...AI-powered automation platform handles intake, benefits... ...end features across the stack using Next.js on the frontend... ...in AI/ML engineering, full-stack engineering, or... ...(EHRs, VOIP, external APIs) and love making messy...PlatformImmediate start
- Overview Founding Full Stack Engineer (+ Equity) at NELP NELP is a fast-growing nursing excellence platform. Join as a founding engineer to build the system of record for nursing excellence... ...complex multi-hospital data models and AI-driven workflows that replace legacy...Platform
$150k - $180k
This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of... ...The next step is to speak to Jack. Founding Full Stack Engineer Salary: $150k-$180k + Equity Company... ...you will build an AI-driven workflow platform from the ground up to revolutionize global...PlatformWork at office- ...A well-funded startup in San Francisco is seeking a founding full-stack engineer to join their team. The role focuses on developing tax optimization... ...will have startup experience, a background in CS/AI, and a passion for solving complex problems. This position...Platform
$220k - $280k
About this role As our client’s Founding Engineer , you will define, build,... ...technical foundation of our platform. You will join us in‑person... ...products. Key responsibilities Full Stack & End-to-End — Design,... ...hands on deck with code (using AI‑assisted dev tools), and...PlatformFull timeWork experience placementVisa sponsorship3 days per week- ...CLERA is looking for a founding engineer in San Francisco, California, to shape the technical culture of a fast-growing team. This full-time role involves significant ownership and autonomy across the entire technical stack. The ideal candidate will own problems from...PlatformFull timeRemote workFlexible hours
- ...A pioneering AI technology company in San Francisco seeks a Founding Engineer - Full Stack to drive the modernization of the construction industry. This high-impact role involves architecting core services in Node.js/TypeScript and building native Electron apps for complex...Platform
- The Talance Group is hiring a Founding Full-Stack Engineer for their San Francisco location to help shape their startup and bring innovative products to market. You will own critical product flows and have the autonomy to design architecture with strong product instincts...Platform
- ...A tech startup in San Francisco is seeking a Founding Engineer with a focus on backend and infrastructure. Responsibilities include designing APIs for AI agents, architecting scalable systems, and maintaining documentation. The ideal candidate has prior experience in...
$250k - $400k
A tech startup in San Francisco is seeking a founding engineer with strong backend and infrastructure skills. This... ...role involves leading a team, designing intuitive APIs, and building high-performing systems that leverage AI capabilities in email communication. Candidates...- A innovative AI startup in San Francisco seeks a Founding Full Stack Engineer to build AI-driven solutions and own product development from inception to launch. As the first non-founder hire, you will shape the technical foundation of the company, collaborating with founders...Platform
$175k - $210k
...Bay Area, CA** Generative AI, VC-Backed Startup / $30M Valuation... ...data processing platform that will help developers build... ...Meta, and LinkedIn. As a Founding Product Engineer, you will be responsible... ...~7+ years of front-end or full-stack development ~ Experience...PlatformLocal areaRemote workFlexible hours- An AI recruitment service in San Francisco is seeking a Founding Full Stack Engineer to build an AI-driven workflow platform from the ground up. The role involves designing and shipping end-to-end product features while collaborating with founders. Ideal candidates should...PlatformWork at office
- ...Seed - Series B Role Type: Early hire / founding engineer Why This Role Exists You'll help... ...quickly in 0-1 environments Design APIs, schemas, and workflows Partner... ...engineering best practices Use modern AI developer tools to move faster (LLM copilots...
$140k - $180k
...International Consulting Ltd is seeking a Founding Engineer in San Francisco to design and build a scalable, multi-tenant AI-native platform. The role involves developing data... ...pipelines, and a solid understanding of API design. The role offers a competitive salary...Platform- ...Ema, a Series A startup founded by serial... ...is revolutionizing the AI landscape to empower employees... ...talented and experienced Full Stack Engineer with a focus on front-... ...-end architecture and API integrations. This is... ...experience across multiple platforms and devices. Write...PlatformWork experience placement
- ...alignment infrastructure for AI systems: defending against novel... ...the Role We're hiring a Founding Engineer (Backend) to own the systems... ...matter. Inference infrastructure, API gateways, proxy systems, CDN edge, or security‑adjacent platforms all map well. Deep systems...Platform
$180k - $240k
...AI Talent Now Job #ZR 79 We're looking for a full-stack engineer with 2–5 years of experience who can make scalable... ...pipelines, backend APIs, and mobile/desktop... ...experience with video-heavy platforms, low-latency systems,... ...specialists route to Founding Engineer)....PlatformFull timeWork experience placementLive in$180k - $240k
...The Role This is a full-stack engineering role at a company that... ...working closely with the founding team. The engineer who... ...call and building AI features before the end... ...prediction layer. The platform ingests a continuous... ...Most don't have clean APIs. Some claim a shipment...PlatformWork at office1 day per week- ...an innovative payments platform that leverages robust e... ...processing through advanced AI and OCR while offering... ...to be expanding our founding team and are looking for a talented Full Stack Engineer to help us build and... ...integrations with third‑party APIs, like Stripe, Anthropic...PlatformContract work
- ...Frontend Engineer (with Familiarity of Full Stack) (Founding Team) Location: San Francisco Bay Area Type: Full... ...the Role We're building an AI-native data platform designed to simplify the most complex... ...stack like langchain, model APIs, model and agentic interfaces...PlatformFull timeTemporary work
- A high-growth platform seeks a Full Stack TypeScript Engineer to develop key infrastructure for AI tools. As the 4th engineer, you will collaborate directly with the CEO/CTO and ship user-facing features across the full stack. The ideal candidate has 2+ years in TypeScript...Platform
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