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Senior/Staff Frontend Developer

Comfy

San Francisco or Remote
$150K-$300K + equity
T
TypeScript
  • Just raised $17M from Pace Capital, Chemistry, Abstract Ventures and many others
  • 4 million users — Your work has real impact
  • Open source — Your contributions are public and stay with you forever
  • Early stage — Creative, high-impact work where every day counts
  • Customers include major film studios and media companies
  • Heavily technical team funded by world-class VCs and founders like Guillermo Rauch (Vercel CEO)

The Role:

As one of our first front-end engineers, you’ll ship new features.

What you’ll do:

  • Lead the design and development of core frontend architecture of new products from the ground up.

  • Rapidly prototype and iterate on features to validate ideas and user experience.

  • Establish best practices for code quality, testing, performance, and maintainability.

  • Collaborate closely with design, product, and backend teams to shape the user experience end-to-end.

  • Contribute to key technical and product decisions as part of the founding engineering team.

  • Mentor future engineers and help build a high-caliber frontend team and culture.

Must-have experience:

  • Shipped applications with significant real-world traffic or user counts.

  • Experience leading technical initiatives and shipping scalable, high-performance web and desktop applications.

  • Strong expertise with modern front-end tooling. (TypeScript, CI/CD pipelines)

  • Expertise in optimizing complex UX interactions in web and desktop applications.

  • A passion for creating fast, accessible, and beautiful user experience.

  • Startup mindset: you thrive in fast-moving environments, take ownership, and love solving problems at scale.

What is ComfyUI?

ComfyUI, in the simplest form, is a node-based engine that enables users to generate visual content using AI. It is the most popular and powerful visual AI framework with more than 60k Github stars, thousands of 3rd party extensions and millions of users.

But this is not where it stops,

  • ComfyUI is and will continue to be a tool for artists of the future: a human equipped with AI who can be an order of magnitude more productive than before.

  • ComfyUI will continue evolve to further to democratize AIs for creatives, hobbyists, storytellers, studios, developers, and enterprises.

  • It empowers those who were not trained with the power of the brush to also be a painter and those who do to be a maestro.

  • It will become an Operating System for visual Gen AI.

  • It will unlock a world where no stories is left untold

About Us

We are a small, intense, and well-funded team in San Francisco who push ComfyUI and its ecosystem forward. Our team comes from Stability AI and Google and many contributed to the ComfyUI ecosystem way before working here.

Our organization is flat and there is no hierarchy, only categories: devv, artz, prod, oprt, etc (and no, there is no one here with the title of Member of Technical Staff, it’s long and silly for a job title).

The only thing that matters is the quality of your cultural fit and execution. We work hard and demand a lot of each other. But we have fun: everyone is here to make something meaningful that will end up being our life’s work. If this mission excites you and you view yourself as a top-tier talent, your future latent self is waiting for you at Comfy.

Check out our Github and blog for what we’ve been working on. Our investors include Pace Capital, Chemistry, Abstract Venture, and Guillermo Rauch.