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Fabrion

Founding Engineer

San Francisco Bay Area

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hirly's read of this role

Seniority
Mid level
Country
US
Work mode
On-site / unstated
First seen by hirly
10 Sept 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

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.

Original posting on Fabrion's site ↗

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