Founding Full Stack Engineer

3 hours ago

San Francisco, California, United States Topify Full time

· San Francisco · Full-time · Onsite**

About Us

is building the world's first
AI Visibility OS
— helping brands win across AI-native search engines (ChatGPT, Gemini, Perplexity, Claude, etc.).

We're backed by top-tier U.S. investors and already powering agencies, enterprises, and fast-growing AI-native companies.

We ship fast. We break things. We fix them even faster.

The Role

We're looking for a
founding full-stack engineer
who builds fast, thinks clearly, and operates with extreme ownership.

You should be the kind of person who:

  • Moves from idea → prototype → shipped in
    hours or days
    , not weeks
  • Loves messy 0→1 environments
  • Has strong system architecture intuition
  • Has opinions, brings ideas, and challenges assumptions
  • Thrives in high-velocity teams and wants to
    build a category-defining product

This is a
true founding seat
— you'll influence Topify's tech stack, product direction, and engineering culture.

What You'll Do

  • Build core product surfaces end-to-end (full-stack, fast).
  • Design scalable architecture for our AI Visibility platform.
  • Integrate LLMs, retrieval pipelines, structured content systems.
  • Own features from concept → design → implementation → iteration.
  • Drive engineering decisions without needing heavy guidance.
  • Set the pace: rapid prototyping, rapid shipping, rapid refactoring.

What We're Looking For

Must-Have

  • 4+ years full-stack experience
  • Strong with
    TypeScript, React, Node/Bun, Postgres
  • Fast execution, high quality bar
  • Solid system design skills
  • Startup mentality: high ownership, bias for action, low ego

Nice-to-Have

  • Experience with LLMs, RAG, agentic systems
  • Infra/DevOps familiarity
  • Product sense and taste
  • Prior founding engineer or early-stage startup experience

Why Join

  • Build a new category from the ground up (GEO: Generative Engine Optimization).
  • Work directly with the founders, ship without bureaucracy.
  • High autonomy + high impact.
  • Competitively paid +
    founding-level equity
    .
  • A real path to
    Founding Engineer / Head of Engineering / CTO
    .

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