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Topify.ai

Founding Full Stack Engineer

Topify.ai, San Francisco, California, United States, 94199

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Topify.ai · San Francisco · Full-time · Onsite**

About Us Topify.ai 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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