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Founding Engineer

Fabrion

San Francisco, CAFull-timePosted 11mo agoStill listed 3 days ago

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At a glance

Compensation
No compensation found
Location
San Francisco, CA
Schedule
Full-time
Work Authorization
Not specified

Olive lists jobs from US employers, including remote roles you can work from the United States.

Job overview

Fabrion is hiring a Founding Engineer. Fabrion is seeking a Founding Engineer to architect and build a platform combining large-scale data systems with AI-native agents. This highly autonomous role offers ownership over core architecture and early team culture, with significant equity upside. The ideal candidate will write production code across backend and frontend, define interfaces, shape DevOps and data infrastructure, and translate abstract concepts into working systems.

Key focus areas include Architect and build scalable APIs, backend services, and web application components, Contribute across the stack: data pipelines, agents, web UIs, deployment systems, and Design and implement internal tooling, testing frameworks, and CI/CD pipelines.

Successful candidates bring 5+ Years As A Full Stack Or Backend Engineer, Experience Owning And Delivering Production Systems End-To-End, and Comfortable Working In Early-Stage Startups Or Autonomous Roles. Important skills include React, Next.js, Learning New Technologies Quickly, Architect Scalable APIs, Build Backend Services, and Build Web Application Components. Preferred (not required): TypeScript, Node.js, Python, and FastAPI.

Skills & qualifications

RequiredNice to have

Skills

ReactNext.jsLearning New Technologies QuicklyArchitect Scalable APIsBuild Backend ServicesBuild Web Application ComponentsData PipelineAgentsWeb UIsDeployment SystemsDesign Internal ToolingImplement Testing FrameworksImplement CI/CD PipelinesCollaborate With Product and DesignPrototype Features QuicklyShip Features QuicklyDefine Engineering ProcessesContribute to DocumentationGrow Early TeamBuilding APIsDatabasesCloud InfrastructureDeployment Workflows at ScaleComfortable With AmbiguityEager to Prototype and Iterate QuicklyStrong Sense of OwnershipThinking About ArchitectureThinking About PerformanceThinking About TradeoffsClear CommunicatorPragmatic Team PlayerValues Equity and ImpactTypeScriptNode.jsPythonFastAPITailwind CSSShadcn/UiPostgreSQLDuckDBGraphQLHasuraKafkaRESTAWSDockerGitHub ActionsArgo CDKubernetesLangChain

Qualifications

5+ Years as a Full Stack or Backend EngineerExperience Owning and Delivering Production Systems End-to-EndComfortable Working in Early-Stage Startups or Autonomous RolesPrior Startup or Founding Team ExperiencePrior Experience as a FounderPrior Experience as a Founding EngineerPrior Experience in a 0-1 Pre-Seed Startup

Full job description

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.

How this job compares

Set against the 42,005 open Software Engineer jobs on Olive Jobs, counted November 7, 2026.

Pay
  • This postingNot listed
  • California median$165–247K/yr7,759 salary ranges
  • California median$46–66/hr165 hourly ranges
Openings
Olive Jobs lists 9,661 open Software Engineer jobs in California and 42,005 across the US. 8% of them nationwide are listed as remote or flexible.
Hiring the most in California
Experience
This posting asks for at least 5 years of experience; Software Engineer postings that state a minimum ask for 5 years at the median (34,475 postings).
Education
13,250 of the 42,005 open Software Engineer jobs (32%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on November 7, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

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