Senior/Staff Backend Engineer
Comfy Org
Software Engineering
Posted on Nov 6, 2025
Senior/Staff Backend Engineer
The Role
We're looking for a backend engineer who can build and scale fast. Our stack is VueJS, Electron, and Python/Go on the backend, but we care way more about your ability to learn and ship than whether you've used these exact tools before.
You are a good fit if this describes you
You're the type who builds entire systems from frontend to backend without breaking a sweat
You learn new technologies rapidly because you're excited by solving hard problems
You've scaled systems before and know the tradeoffs that matter
You think most software moves too slowly and could be way better
You're comfortable diving into unfamiliar code and making it work
What you'll do
Build ComfyUI frontend(TS, Electron)/backend(Python) product
Ship features that directly impact millions of ComfyUI users
Work closely with our core team to architect new systems
Jump between frontend, backend, and everything in between
Help shape our technical direction as we grow
Nice to have
You have excelled at a fast pacing high growth tech startup before or are extremely excited towards being in one.
If you don't know every piece of our stack, that's fine - we care about your ability to learn fast and ship quality code. We're outpacing the industry by learning what we need to solve problems, not by sticking to what we already know.
Apply Now
What is ComfyUI?
ComfyUI is the world’s leading visual AI platform — an open, modular system where anyone can build, customize, and automate AI workflows with precision and full control. Unlike most AI tools that hide their inner workings behind a simple prompt box, ComfyUI gives professionals the freedom to design their own pipelines — connecting models, tools, and logic visually like building blocks. 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. ComfyUI empowers those who were not trained with the power of the brush to also be a painter, and those who are, to be a maestro.
Built for users who value transparency and control Infinitely extensible — thousands of community-made nodes and integrations
Scales from creative experimentation to production automation
Open-source, used by millions, and backed by one of the most active AI communities online
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’s aiming to become the operating system for visual generative AI , the foundation on which the next generation of creative tools are being built.
An creative’s show case of how Comfy is adopted in their work
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 team is small and flat and there is no hierarchy, only areas of responsibilities: devs, ops, product, etc.
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.
Q&A
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