---
title: 'Senior Data Scientist, Product & Growth at Comfy'
canonical: 'https://feeny.ai/job/senior-data-scientist-product-growth-comfy-san-francisco-72bw86h0yexc'
type: 'job'
last_seen: '2026-09-04'
---

# Senior Data Scientist, Product & Growth at Comfy

- **Company:** Comfy
- **Location:** San Francisco, CA
- **Compensation:** $140k–$220k
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-06-25
- **Last confirmed live:** 2026-09-04
- **Apply:** https://jobs.ashbyhq.com/comfy-org/57ff81f6-7df4-4f9d-be21-ce55f348bdad/application

**Skills:** SQL, Python, A/B Testing, Statistical Analysis, Data Modeling, Pipeline Building, PostHog, dbt, Data Warehouse, AI Tools

> Comfy is seeking a Senior Data Scientist to own growth funnel metrics, design experiments, and build predictive models for activation, churn, and retention. This hands-on role involves partnering with product and growth teams to drive data-informed decisions.

## Job description

## The Role

Comfy is looking for our first dedicated product and growth data scientist. Millions of people use ComfyUI, and we're turning that reach into a real business. We need someone who can tell us what's actually happening inside the funnel, find where the leverage is, and prove what moves the numbers.

This is a hands-on, senior IC role. You'll own the analysis behind signup, activation, conversion, and retention, and you'll work directly with growth, product, and the founders. You won't sit behind a ticket queue. You'll pick the questions that matter, answer them well, and turn the answers into decisions we actually make.

## What You'll Do

Own the metrics that define our growth funnel: signup, activation, conversion, retention, and how they connect

Design and run experiments (A/B tests and beyond), and read them honestly, including when the answer is "no effect"

Build the models that matter for growth: activation prediction, churn and retention, conversion propensity, and LTV

Turn messy product and billing events into clean, trusted analysis (we run on PostHog and a warehouse)

Find the leverage: the few places where a small change in the funnel produces an outsized result, and size the opportunity before we build

Make your work legible with clear metrics, dashboards, and writeups the whole team can act on

Partner with growth and product day to day, and with the founders on the bets that matter

You Might Be a Fit If You

Have several years in product or growth data science, ideally at a product-led or consumer company with real scale

Are genuinely hands-on: you write your own SQL and Python, build your own models, and don't need a platform team to get answers

Know experimentation cold, both the statistics and the judgment, and can tell a real effect from noise

Think in funnels and systems, and connect a metric to the decision it should drive

Communicate in plain language, and aren't afraid to deliver an inconvenient finding

Have built data models or pipelines when the job needed it (dbt, warehouse), even if analysis is your main game

Care about AI and creative tools, ideally as a ComfyUI user

Like a small, intense team: high ownership, low ego, fast clock

Are in SF or ready to be

Bonus Points

You've stood up an experimentation program or an analytics stack from scratch

You're comfortable with PostHog, dbt, or similar tools

You can point to analysis that changed what a company did, not just what it knew

Benefits include company-sponsored Medical, Dental, and Vision (up to 100% coverage), unlimited PTO, daily catered lunch and dinner, your choice of equipment, and an unlimited budget for AI tools.

## About ComfyUI

The creative world is changing fast. Everything that used to be rendered is being generated by AI. ComfyUI https://www.comfy.org/ is the world's leading visual AI platform, an open, modular system to build AI workflows.

It's used by artists, filmmakers, video game creators, designers, researchers, VFX houses, and among others, teams at OpenAI, Netflix, Amazon Studios, Ubisoft, EA, and Tencent, all who want to go beyond presets and truly shape how AI creates.

Open-source, with over 100k GitHub Stars

An inference engine to run the most powerful open source models locally or in the cloud

A massive community, with thousands of community-made nodes and integrations

Scales from creative experimentation to production automation

Evolving to democratize visual AI creation, empowering everyone from hobbyists to studios, storytellers, and enterprises to be more productive and creative than ever before

ComfyUI isn't just another AI app. It is the operating system for visual generative AI, the foundation on which the next generation of creative tools are built.

## About Comfy

## Company Overview
- **One-liner**: Comfy develops the world’s leading open-source, node-based visual AI platform (ComfyUI) for building, running, and scaling generative AI workflows.
- **Entity Type**: Private (most recent round: Series C, raised in April 2026)
- **Headquarters**: San Francisco, California, United States
- **Founded**: 2023 (first commit to ComfyUI on Jan 16, 2023); incorporated as Comfy Organization Inc. in 2024
- **Founders**: Yoland Y. (Co-Founder & CEO), Robin Huang (Co-Founder)

## Core Business
- **Primary industry/industries**: Generative AI Infrastructure, Creative Tools, Open-Source Software
- **Target customers**: Individual creators, artists, AI researchers, SMBs, and large enterprise teams in media, gaming, advertising, and product design.
- **Mission or purpose statement**: To build the operating system for generative AI — an open, modular, and powerful platform that gives creators full control over every model, parameter, and output.

## Products & Services
- **ComfyUI (Open-Source)**: The core free, node-based interface for building AI pipelines. Users connect models, nodes, and processing steps on an infinite canvas. Supports image, video, 3D, and music generation. [comfy.org](https://comfy.org/)
- **Comfy Cloud**: The full power of ComfyUI running in the cloud, accessible from any browser without local hardware requirements. [comfy.org](https://comfy.org/)
- **Comfy Desktop**: A native desktop application for running ComfyUI locally on personal hardware. [comfy.org](https://comfy.org/)
- **Comfy API**: Enterprise-grade API infrastructure for integrating ComfyUI workflows into production environments. [comfy.org](https://comfy.org/)
- **Comfy Enterprise**: Managed deployment, SSO, governance, and support for large organizations. [comfy.org](https://comfy.org/)
- **Comfy Hub**: A community marketplace featuring 60,000+ custom nodes and thousands of community-shared workflows that can be remixed. [comfy.org](https://comfy.org/)

## Market Standing
- **Valuation**: Not publicly disclosed (conflicting reports list different Series amounts; Tracxn reports a Series C in April 2026 with a valuation marked as private).
- **Total Funding**: $48.8M raised over 2 rounds (per Tracxn).
  - Seed/Venture Round (Oct 2025): $17M led by Abstract and Pace Capital.
  - Series C (Apr 2026): Led by Craft Ventures, with participation from existing investors. [tracxn.com](https://tracxn.com/d/companies/comfyorg/__LucdP_H74QeuMgwthELX9dllM957ntvuLr46WNrY3gU)
- **Key Metric**: Over 60,000 custom nodes developed by the community; used by millions of creators globally. [blog.comfy.org](https://blog.comfy.org/p/comfyui-turns-2-a-journey-and-call)
- **Notable Investors/Partners**: Craft Ventures, Abstract, Pace Capital.
- **Growth Signals**: Headcount grew over 435% YoY (to ~48 employees as of mid-2026). Launched multiple commercial offerings (Cloud, API, Enterprise) in a short timeframe. Active community of node developers and workflow sharers.

## Competitive Advantages
- **Open-Source Moat**: ComfyUI is the de facto standard node-based UI for Stable Diffusion and broader open-source generative AI. The community has built 60,000+ custom nodes, creating a network effect that is extremely difficult for closed competitors to replicate.
- **Full User Control**: Unlike closed platforms (Midjourney, DALL-E), Comfy gives every user full control over models, parameters, and all processing steps, appealing to power users and enterprises.
- **Modularity & Extensibility**: The node-based architecture allows endless customization and remixing, making it a platform, not just an app.
- **Strong Brand in AI Community**: ComfyUI is widely recognized as the go-to tool for advanced generative AI workflows among artists and engineers.

## Strategic Focus
- **Building an "OS for Gen AI"**: The company’s stated ambition is to become the operating system layer for all generative AI creation, moving beyond a UI tool to a full infrastructure platform.
- **Professional & Enterprise Features**: Developing robust workflow management, team collaboration, dependency management, and security features to scale from solo creators to enterprise teams.
- **Improved User Experience**: Making the platform more intuitive for newcomers (e.g., "App Mode") without sacrificing the power and flexibility that advanced users demand.
- **Cloud & API Monetization**: Expanding the Comfy Cloud and API offerings to capture revenue from teams and enterprises that need managed, scalable infrastructure.

## Why Work Here
- **Culture**: Described as a "small, intense team" that values ownership, speed, and craft. Flat structure where collaboration and execution matter more than titles. Emphasis on shipping real work and caring deeply about the open-source community.
- **Remote/Hybrid**: Most roles are based in San Francisco, but remote options are available for many positions. The company runs regular team offsites to stay connected.
- **Visa Sponsorship**: Available for exceptional candidates.
- **Hiring Philosophy**: "We care about what you can do, not where you went to school." The company prefers candidates who have used ComfyUI, built with it, or contributed to the open-source project.
- **Engineering Culture**: A build-first environment where engineers work on foundational, high-impact tech powering real-world video, image, music, and app generation. Emphasis on side projects, open-source contributions, and shipping fast.
- **Team Growth**: The company has grown from a side project to a well-funded startup (~48 employees) with significant growth trajectory and new product launches.

## Sources
1. [comfy.org](https://www.comfy.org/)
2. [Blog - ComfyUI Turns 2](https://blog.comfy.org/p/comfyui-turns-2-a-journey-and-call)
3. [LinkedIn - ComfyUI](https://www.linkedin.com/company/comfyui)
4. [Tracxn - Comfy Profile](https://tracxn.com/d/companies/comfyorg/__LucdP_H74QeuMgwthELX9dllM957ntvuLr46WNrY3gU)
5. [Careers Page (Ashby)](https://jobs.ashbyhq.com/comfy-org)

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