Senior​/Applied Machine Learning Engineer Engineering San Francisco

The Role

We're looking for someone who loves optimizing model inference to join us in building the core of Comfy

UI – the most complex and bleeding‑edge part of our engine. You'll be working on making AI models run faster and more efficiently than anyone thought possible.

• You geek out about model inference, torch optimizations, and memory management
• You’ve written production PyTorch code that pushes performance boundaries
• You love diving deep into how models actually work under the hood
• You get excited about making insanely optimized code that just works
• You think the current state of ML deployment could be way better

• Build and optimize the core inference engine that powers ComfyUI
• Make massive models run faster and use less memory than anyone else
• Work directly with our core team on architecting new features
• Tackle the hardest technical problems in the visual AI space
• Help shape where we take this technology next

If you’ve worked with diffusion/LLM models before or built custom nodes for Comfy

UI, that’s awesome.