Sr. Growth Engineer

The Role

Comfy has millions of users and one of the largest open-source ecosystems in generative AI. Comfy Cloud gives that community a zero-setup way to create with ComfyUI, but we are still early in building the product-led growth engine around it.

We’re looking for a senior full-stack engineer to own that engine.

You will find the biggest opportunities in signup, onboarding, activation, monetization, and retention; turn them into hypotheses; build the experiments yourself; and use the results to decide what we ship, iterate, or kill.

This is not a role where a PM hands you a finished specification. You will work closely with Product, Design, Data, Marketing, and the founders, but you should be able to take an ambiguous growth problem from data and user insight all the way to production code and a defensible decision.

Your output is not tickets completed. It is more users reaching meaningful value, becoming paying customers, and continuing to create with Comfy.

What You’ll Do

Own experiments end to end: identify an opportunity, form a hypothesis, define the primary metric and guardrails, build the experience, instrument it, launch it, analyze the result, and make the ship-or-kill decision.</