Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Founding Engineer

Fabrion, Inc

Founding Engineer (Full Stack)

Location: San Francisco Bay Area

Type: Full-Time

Compensation: Competitive salary + meaningful equity (founding tier)

Backed by 8VC, we're building a world-class team to tackle one of the industry's most critical infrastructure problems.

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 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

An ability to learn and grasp new technologies quickly trumps knowing the entire tech stack - you should be comfortable learning and adapting in a fast-moving environment. The following represents the types of technologies you will be working with:

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.
Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Founding Engineer in San Francisco, CA vacancy
  •  ...Founding Electrical Engineer Instance Labs is building a machine that transforms an idea into a finished and tested circuit board, allowing engineers to iterate on electronics and solve the hardest problems in the physical world faster than ever before. The next frontier... 
    Suggested
    Work experience placement
    Afternoon shift

    Bankless

    San Francisco, CA
    1 day ago
  • $150k - $200k

     ...We are hiring on behalf of our client. An elite, stealth-stage hardware company based in San Francisco who is seeking a Founding Electrical Engineer to help design and build a first-of-its-kind autonomous circuit board fabrication platform. The client’s technology is... 
    Suggested
    Full time
    Work at office

    MLabs

    San Francisco, CA
    3 days ago
  •  ...human approval, and drives systems it was never given an API for. About the Role: This is a backend- and systems-heavy founding engineering role where \"full-stack\" means owning the product and system end-to-end. You'll build the workflow engine for long-running... 
    Suggested
    Full time
    H1b
    Work at office
    Visa sponsorship
    Monday to Friday

    Thomas Talent Network, LLC

    San Francisco, CA
    4 days ago
  • $200k - $300k

     ...is supporting an early-stage AI infrastructure client in San Francisco in the search for a highly skilled Senior/Staff Founding Full-Stack Engineer – Agent Systems. The successful candidate will join the company's early-stage team and help build complex systems from... 
    Suggested
    Full time
    H1b
    Work at office
    Visa sponsorship
    Monday to Friday

    People Hive HR Consultancies LLC

    San Francisco, CA
    1 day ago
  •  ...Job Description SF Bay Area, California Fully On-site We are seeking an Founding Computer Vision Engineer - Multimodal AI & VLMs to join an early-stage technology company building AI systems for real-world industrial environments. This role focuses on multimodal visual... 
    Suggested
    Work at office
    Visa sponsorship

    Hyra

    San Francisco, CA
    1 day ago
  • Prompting Company in San Francisco seeks a Founding Forward Deployed Engineer to work directly with customers, understand their goals, and deliver measurable outcomes across engineering, product, and revenue. You will own integration projects and translate complex systems... 

    Prompting Company

    San Francisco, CA
    1 day ago
  • Orchard is building an entirely new way for farmers to understand and operate their farms. As Orchard's Founding Design Engineer, you will establish the design function and own design across product, brand, marketing, software engineering, hardware, and our physical environments... 

    Orchard Robotics

    San Francisco, CA
    3 days ago
  • Serval, an AI-native automation platform, is looking for a founding Solutions Engineer to own the pre-sales technical cycle for strategic customers. You’ll demo, architect, and evaluate the platform with CIOs and security leaders, shaping how we present value and win the... 

    Serval

    San Francisco, CA
    1 day ago
  • $180k - $250k

     ...changed how software gets built. Who's doing the same for the engineers behind jet engines? A seed-stage startup in stealth is building...  ...own You'd be engineer number four, next to the CTO and two founding engineers who all founded companies before. Where you focus... 
    Full time
    Visa sponsorship

    Rnb Consultancy

    San Francisco, CA
    2 days ago
  • Revive is seeking a Senior Engineering Lead to join as a founding member of our engineering team in the Bay Area. You’ll help define the company's technical foundation, build core systems from scratch, and ship quickly to validate and learn. This role suits someone who... 

    Revive

    San Francisco, CA
    1 day ago
  • Approach Venture LLC in San Francisco, CA seeks a founding Electrical Hardware Development Engineer to own the laser driver electronics, power systems, and flight-grade control hardware for a first-of-its-kind spacecraft. You will design boards, assemble and test by hand... 

    Approach Venture LLC

    San Francisco, CA
    3 days ago
  • Hyra in the SF Bay Area seeks a Founding Computer Vision Engineer to build multimodal AI and vision-language models for real-world industrial environments. You will own critical parts of the AI layer and deploy vision-language systems that run in hardware-constrained settings... 

    Hyra

    San Francisco, CA
    1 day ago
  • Andromeda is building the social intelligence layer for humanoid robots. We seek a Mission Autonomy engineer to found the MA team, architect Abi’s long-duration decision-making, and coordinate with voice, perception, and platform groups. You will drive architecture, prototyping... 

    Andromeda-Robotics

    San Francisco, CA
    1 day ago
  • $200k - $325k

    Aionia Group in San Francisco seeks a founding team member to architect and ship production-grade AI systems directly with customers....  ...backend services and APIs. Candidates should have strong backend engineering skills, a relevant degree, and be comfortable working on-site... 

    Aionia Group

    San Francisco, CA
    1 day ago
  • Premier Global Links LLC is seeking a technically exceptional Founding Engineer to join an early-stage AI-native supply chain platform team. You will solve complex engineering problems, work directly with customers, and influence technical direction and culture from the... 

    Premier Global Links LLC

    San Francisco, CA
    1 day ago
  • Andromeda is hiring a founding Mission Autonomy engineer to architect and implement Abi's long‑duration decision‑making system. You will drive architecture, simulation, and deployment, coordinating across autonomy, chatbot, perception, audio and platform teams. You will... 
    Shift work

    Andromeda Robotics Operations Pty

    San Francisco, CA
    1 day ago
  •  ...groundbreaking trading platform in the SF Bay Area, enabling 24/7 access to U.S. equities for a global user base. We are looking for a Founding Engineer to lead the hedge engine implementation that drives every order across multiple brokers. In its first year, this system will... 

    Street

    San Francisco, CA
    6 hours ago
  •  ...or wallet, and buy stocks. Our core belief is that U.S. equities should be as open as the dollar. Role You’ll be our Founding Engineer. You will lead the implementation of our hedging engine: the system thatdrives the execution of every order on the platform and... 
    Weekend work

    Street

    San Francisco, CA
    16 hours ago
  • $150k - $250k

     ...cockpit to run the business. We just raised an oversubscribed 2,5mio angel round in 7 days and are moving at rapid speed. Founding Engineer You'd be the first hire. This is a once-in-a-generation shot to define how service companies get built. You'll own the... 
    Visa sponsorship

    Orpex

    San Francisco, CA
    1 day ago
  •  ...world at a fraction of the cost of traditional solutions. The founding team previously built and scaled products at financial services...  ...leaders Coinbase and Sardine. The opportunity As our Founding Engineer , you will define, build, and maintain the technical... 

    Infinite Lambda

    San Francisco, CA
    16 hours ago
  •  ...and the US. The role You will be one of the first three engineers, and the first ones hired. This is a CTO-calibre seat: you set...  ...Zero-to-one experience: founder, technical co-founder, CTO, or a founding or very early engineer at a high-growth startup An... 
    Internship
    Relocation
    Relocation package

    TechTree

    San Francisco, CA
    3 days ago
  • $200k - $240k

     ...and AI, and help define what it means for robots to live and interact alongside people. The Role We are looking for an engineer to found our Mission Autonomy team, which will own our robot’s long-duration decision-making layer and orchestrate the totality of Abi’... 
    Work at office
    Shift work

    Andromeda-Robotics

    San Francisco, CA
    1 day ago
  • $200k

     ...products for private market investing. As a Senior Software Engineer on Meridian, you’ll own the technical design and delivery of major...  ...sequencing tradeoffs through launch and iteration. This is a founding engineer role on a zero‑to‑one product with meaningful... 
    Work at office
    2 days per week

    AngelList Venture

    San Francisco, CA
    1 day ago
  •  ...that only show up at real traffic and real scale. This is a founding role on a small team, which means the scope is wide and the ownership...  .... Shape the roadmap, not just the backlog. As a founding engineer, you'll help decide what we build next in serving — multi-... 

    General Compute

    San Francisco, CA
    1 day ago
  • $50k

     ...automatically routes every request to the best model - significantly reducing costs and improving accuracy. The Role As a founding full-stack engineer, you’ll own the application layer of our platform - from data collection and observability to the control plane and user... 
    Work at office

    Datawizz

    San Francisco, CA
    1 day ago
  • $240k - $400k

     ..., auditability, and real‑world guarantees. Join a talent‑dense founding team with meaningful equity and real growth upside at the intersection...  ...artificial intelligence. Role Summary As our Founding Engineer, you will own a zero‑to‑one product and its infrastructure. You... 
    Visa sponsorship

    Praxis, Inc.

    San Francisco, CA
    1 day ago
  • $180k - $250k

     ...Founding GTM Engineer Location: San Francisco (in-person, in-office, full-time ONLY) Compensation: $180K-$250K OTE + meaningful equity About Virio Virio is building the next-generation B2B GTM stack. Backed by investors and operators from LinkedIn, YouTube... 
    Full time
    Work at office
    Relocation package

    Virio

    San Francisco, CA
    16 hours ago
  • $195k - $230k

     ...The Role We're looking for a Founding Product Engineer to help build the next generation of financial products for the millions of low-income Americans who interact with Forage. Forage is the leading payment processor for regulated payments, starting with EBT. We... 
    Work at office
    Remote work

    Forage

    San Francisco, CA
    16 hours ago
  •  ...Full-stack product engineer who helps us build the AI platform for engineering consulting firms - agents that own entire professional...  ...; what comes next is every other workflow these firms run. The founding engineer is joining at the point where the first agent has proven... 
    Live in
    Work at office

    Buoyant

    San Francisco, CA
    16 hours ago
  •  ...tedious, repetitive workflows that teams currently face. Our core engine combines advanced OCR and LLMs to deliver truly intelligent...  ...one, this is the place. The Role We’re hiring our first Founding Engineer to own and expand the core machine learning engine behind... 
    Work at office

    Praxis, Inc.

    San Francisco, CA
    1 day ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Founding Engineer. Be the first to apply!