Senior Full Stack Engineer - Founding Team Job at Fulcrum, San Francisco, CA

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  • Fulcrum
  • San Francisco, CA

Job Description

About Fulcrum

Fulcrum is re-wiring the insurance-brokerage industry with AI agents that let brokerages grow revenue without adding headcount. Our platform already saves customers thousands of hours and millions of dollars every year.

Why Fulcrum

  • Rocket-ship growth. We’ve grown 5× in the last six months—and accelerating.
  • Extreme ownership. You’ll work directly with enterprise users and ship end-to-end products that save them hours every week.
  • Bleeding-edge problems, real impact. Tackle tough AI and product challenges whose wins show up immediately in customer workflows.
  • In-person collaboration. Join a lean, staff-level team (ex-Affirm, Uber, DoorDash, McKinsey) working side-by-side in San Francisco; we believe the best ideas are fostered in an in-person environment.
  • Top-of-market rewards. Competitive base salary plus meaningful founding-team equity.

Why join as a Senior Full Stack Engineer?

  • Own the product surface. Ship end-to-end features—frontend, backend, and LLM orchestration—that automate millions of dollars of work.
  • Close Collaboration with Customers. Work closely with our customers for designing, shaping and shipping the latest products into their hands.
  • Hyper-growth, tiny team. Enjoy massive autonomy and zero bureaucracy to define the product surface while we scale from < 10 people to the next phase.
  • Cutting-edge stack. Python, TypeScript, React/Next.js, Temporal, Postgres, AWS, plus closed- & open-source LLMs.
  • Founder-level impact. Shape product strategy, culture, and engineering standards from the ground up.

What you’ll do

  • Build full-stack products & features that blend UX with AI agents for maximum customer impact.
  • Prototype & iterate quickly, turning customer pain points into live solutions in days, not quarters.
  • Scale the platform —security, observability, and performance — for enterprise scale.
  • Collaborate with customers & SMEs to craft new and delightful workflows for complex insurance tasks.
  • Raise the technical bar, mentoring peers & juniors, and refining best practices for a high-velocity team.

About you

  • 3–5 yrs building production software across the stack; strong in TypeScript + React and/or Python.
  • Proven at shipping 0→1 products in fast-moving environments (startup or internal incubation).
  • Product-obsessed. You think in user journeys, sweat UX details, and measure success in customer adoption.
  • Bias to action. Comfort making trade-offs, shipping fast, and learning from real-world usage.
  • Nice-to-haves: experience with LLM apps, cloud infra (AWS), or fintech/insurtech domains.

What we offer

  • Competitive salary ($160k-$240k) + equity on founder-friendly terms.
  • Full health, dental & vision.
  • High-ownership, high-trust culture with lightning-fast executors.
  • Regular team off-sites, dinners, and an office stocked for builders.

Job Tags

Immediate start,

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