Founding Engineer
Fabrion
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 a unique opportunity to own a significant portion of the tech stack and grow into a leadership role with considerable upside in equity. You’ll be working on infrastructure that combines large‑scale data systems with AI‑native agents. This is a highly autonomous, high‑leverage role with ownership over core architecture and early team culture. You’ll be writing production code across backend and frontend, defining interfaces between components, shaping devops and data infrastructure, and helping translate abstract concepts into working systems. If you’re someone who prefers fast feedback, direct impact, and long‑term upside, this is for you. Responsibilities Architect and build scalable APIs, backend services, and web application components Contribute across the stack: data pipelines, agents, web UIs, deployment systems Design and implement internal tooling, testing frameworks, and CI/CD pipelines Collaborate closely with product and design to prototype and ship features quickly Help define engineering processes, contribute to documentation, and grow the early team Our Stack Languages: TypeScript (Node.js), Python (FastAPI) Frontend: React, Next.js, Tailwind, shadcn/ui Backend: Postgres, DuckDB, GraphQL (Hasura), Kafka, REST Cloud/Infra: AWS, Docker, GitHub Actions, ArgoCD, Kubernetes (basic) AI/Agents: LangChain, LangGraph, OpenAI, Anthropic, LLaMA, Pinecone, Qdrant Governance: Keycloak, Open Policy Agent (OPA), OpenTelemetry, Slack integrations Visualization: Vega, Flourish, React ReChart Connectors: ERP, PLM, Excel, Email, Web APIs What We’re Looking For Experience 5+ years as a full stack or backend engineer Experience owning and delivering production systems end-to-end Prior experience with modern frontend frameworks (React, Next.js) Familiarity with building APIs, databases, cloud infrastructure, or deployment workflows at scale Comfortable working in early‑stage startups or autonomous roles; prior experience as a founder, founding engineer, or a 0‑1 pre‑seed startup is a big plus Mindset Comfortable with ambiguity, eager to prototype and iterate quickly Strong sense of ownership — prefers to build systems rather than wait for tickets Enjoys thinking about architecture, performance, and tradeoffs at every level Clear communicator and pragmatic team player Values equity and impact over prestige or hierarchy Prior startup or founding team experience Bonus Contributions to open‑source or internal tools with impact Interest in data systems, agent workflows, or LLM orchestration Why Join True ownership — early equity and influence over product and technical direction Mission‑driven team solving complex data and AI problems with real‑world impact Strong engineering culture focused on velocity, clarity, and long‑term thinking Learning curve across AI, data infra, agents, and enterprise‑scale platforms Early access to cutting‑edge AI workflows and deployment patterns If you want to build systems that learn, act, and evolve — with the autonomy to shape the stack and the team — we’d love to hear from you. Other Details Seniority level: Mid‑Senior level Employment type: Full-time Job function: Engineering and Information Technology Industries: Technology, Information and Internet #J-18808-Ljbffr
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$250k - $380k
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$500 per month
...DESCRIPTIONThis company handles millions of calls per month and needs an engineer who has worked at that scale before and knows how to build... ...sub-100 milliseconds.You will work on-site directly with the founding team, contributing across architecture, infrastructure, and...H1b- Oho Group is seeking a Founding Mechanical Engineer in San Francisco to lead the design, build, and testing of complex hardware systems. This position requires a Bachelor's degree in a related field and hands-on experience with hardware development, with responsibilities...
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10x Science, based in San Francisco, is looking for a founding engineer to contribute to a high-performance computing platform for AI-powered drug discovery. You'll join a small team and work directly with the founders, taking on significant responsibilities from day one...$130k - $200k
Join us to apply for the Founding Engineer (Systems + ML) role at Partcl . Get AI-powered advice on this job and more exclusive features. This range is provided by Partcl. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more...Full time- ...a YC S25-backed startup, is building a replayable environment engine over real enterprise history and deploying it within modern workflows... ...you can be proud of for decades. Join us as we scale from founding team to deployment across enterprises. #J-18808-Ljbffr Ambral...
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- Physical AI in San Francisco is building models and tooling to accelerate hardware design. The founding engineering team will own core architecture and productionize physics-informed models on real boards. You will shape the tech stack, integrate with engineers' tools,...Visa sponsorship
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- Truss is a regulated fintech company seeking the founding head of risk to design and lead the risk program. The role requires building production risk systems, rules engines, and decisioning platforms to catch fraud, abuse, and loss in production. You will own end-to-end...
$250k - $380k
A stealth robotics startup in San Francisco seeks a Founding Hardware Engineer to design and build autonomy systems for heavy industrial machines. Ideal candidates will have a proven ability to prototype hardware from scratch and thrive in fast-paced environments. Key...- Gradient Robotics in San Francisco, CA is seeking a Founding Software Engineer to own end-to-end data flow from AI models to actuators and keep real-time pipelines running at single-digit latency. You’ll work near hardware, from kernel and firmware up through perception...
- ...to automate the repetitive work currently handled manually across emails, spreadsheets and legacy systems. They are hiring a Founding Engineer to work directly with the founders and customers, understand how these businesses operate and build the product from first conversation...
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- ...developer tools across authentication, inference, voice, and more using systems like Claude Code and Codex. Role Description As a Founding Engineer at Lightsage, you will design, build, and scale core infrastructure and products that power agent‑led growth for developer...Full time
$250k
...transferred to us in real time. The company is bootstrapped and founded by a former startup and venture capital attorney. Sixteen... ...percent reply rate. About the Role This is the company’s first engineering hire, reporting directly to the Founder, who is currently the...Full timeCasual workWork at officeImmediate startRemote workRelocation- ...or Vercel and thought "why doesn't every B2B tool feel like this?" — that's the standard you'd be hired to hold. This is a founding engineering hire. You'd work directly with the founders, ship to production every week, and have outsized influence on what the product...Full timeLive inWork at officeImmediate startRelocation
$175k - $225k
...About the Role Join a fast-moving, early-stage consumer AI startup as a Founding Engineer — a rare, high-impact position working directly alongside the founder. This is a true 1-of-1 opportunity to shape both the product and engineering culture from the ground up. The...Remote workVisa sponsorship$120k - $220k
...spreadsheets. We are building the operating layer that makes that work faster, clearer, and more reliable. The role We're hiring a Founding Engineer to help build Andco from the ground up. You'll own meaningful parts of the product and stack, moving from customer problems...
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