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 Fabrion
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- ...from across IT and security. Several design partners today and a founding team of three. Full-Time, In-person, San Francisco, CA.... ...About the Role: This is a backend- and systems-heavy founding engineering role where "full-stack" means owning the product and system end...SuggestedFull timeH1bVisa sponsorship
$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...SuggestedH1b- ...premiere Talent Partner and Executive Search Solution. We were founded on the fact that technical recruiting is most fruitful via partnership... ...Stay hungry. Stay HMBL. We're seeking a Founding Software Engineer for an early staged AI & LLM startup based in San Francisco....Suggested
$150k - $250k
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$170k - $250k
...Healthcare AI · Founding Team · San Francisco $170K – $250K + 0.5–1.5% Equity SF · Remote-Flexible $5M Raised · Tier-1 VCs 2–4 Founding Engineers No Visa Sponsorship AI Agents Replacing Manual Healthcare Operations A well-funded, early-stage AI startup founded...InternshipRemote workVisa sponsorshipRelocation packageFlexible hours$175k - $225k
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$185k - $215k
...gap between referral and care. The result is better patient experiences and health outcomes. Our founding team pairs deep experience investing in health tech with engineering expertise from Meta and we just raised a $2.5M pre-seed led by GreyMatter. About the Role...Work at officeFlexible hours$180k
...Culture Talent. We're excited to help connect talented professionals with this exceptional team! The Role We're hiring a Founding Engineer to join an early-stage company building AI-powered software and data infrastructure for healthcare organizations operating in...Work experience placement- ...About the role Hiring a full-stack/founding engineers to join our team and focused on product engineering and shipping new features Things you'll be working on Architecting and implementing full-stack product features in Typescript/React/Node is the core of...Work at office
- ...Founding Full-Stack Engineer Opportunity Hi, my name is Gabriel and I'm the founder of Y/n. Y/n is an app where you can create, share, and play interactive stories. Today, 100K+ teenagers spend 3+ hours a day in the app playing characters in text stories of their...Relocation
- ...Second Founding Engineer Opportunity We're hiring a second founding engineer! You'll be team member #5, working closely with co-founders Joseph + Wilbur and our engineering team and you'll have significant ownership over the parts of the product you want to cover. As...Work at office
$350k
...conversations consistent and personalized across all channels. Reverse engineering legacy healthcare systems that don't have public APIs to... ...who desperately need them. We're looking for exceptional founding engineers to help us realize this ambition. If you're an...Contract workNight shift- ...180 LPA. Min Experience: 1 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 product from zero to one. This is a hands-on role for someone who thrives in...Full timeWeekday work
- ...Origamics AI · Founding team · Full-time We’re hiring the first engineers to join the founders. Not employee #20. Not “early.” Founding. What we do The technology used to design boards and electronics is some of the most complex in existence, and it hasn’t changed much...Full timeImmediate start
- ...Founding Engineer Metalware helps protect cyber-physical systems in critical industries. We develop advanced firmware analysis and security solutions for industries where failure isn't an option. We are privileged to work on the most cutting-edge (and sometimes secretive...Weekend work
- ...Founding Engineer Job title: Founding Engineer Location: San Francisco, CA (in-person only, relocation available) About the Company They help speech, occupational, and physical therapists build their own private practices. Their AI-powered "business-in-...Private practiceWork at officeRelocation
- ...This is a foundational role: Sim is hiring our first GTM Engineer to build the company's go-to-market and RevOps infrastructure from... ..., custom internal tools, and data-driven outbound campaigns Found and scale: Set the technical standard and shape the DNA of Sim...Full timeWork at officeImmediate startVisa sponsorshipRelocation package
$150k - $300k
...optimize cash, debt, budgeting, expenses, investing, and taxes. Founded in 2025 by a former senior financial-services leader at a... ...native financial operating system. We are hiring a Founding Engineer to become the company's first technical hire and build the product...Full timeContract workH1bRemote workVisa sponsorship$160k - $210k
...About the job Founding Engineer Founding Engineer Global Placement Firm is conducting a confidential search for Founding Engineers to join a small, high-growth healthcare technology company in San Francisco focused on transforming how speech, occupational,...Full timePrivate practiceH1bWork at officeRelocationVisa sponsorship- ...Weave At Weave, we're building the best software for the best engineering teams to move faster, and we want to hire exceptional sales... ...Andrew runs engineering at Weave, and before that worked as the founding engineer at Causal. Responsibilities Build pipeline:...Flexible hours
- ...strategic operators. Now we need to build fast enough to match customer demand. The Role This is not a typical engineering role. You'll be our founding engineer, with an outsized role in how the product, company, and engineering culture evolve. You'll write code,...
$150k - $250k
...Agentmail Engineer Opportunity Location: San Francisco, CA Type: Full-time, on-site We are seeing a surge in market demand as... ...for your email, it's email for your AI. We're looking for a founding engineer with strong backend and infra instincts to help build...Full time$130k - $170k
...About the Role This is a founding-team engineering role at an early-stage AI recruiting marketplace, where you will own the intelligence layer end to end. Recommendation systems, ranking algorithms, and LLM-powered matching are the core of how the product works, and this...Full timeImmediate startVisa sponsorshipRelocation package$250k - $400k
...Founding Engineer Type: Full-time Compensation: $250-400k base plus generous equity Location: On-site in SF, hybrid, or remote About the Role We're looking for engineers to help us build the infrastructure to clone and gamify the internet. We will cover...Full timeRemote work$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...Full timeImmediate startVisa sponsorshipWork visa
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