---
title: 'Staff Software Engineer, Billing at Comfy'
canonical: 'https://feeny.ai/job/staff-software-engineer-billing-comfy-remote-re990ycfvj71'
type: 'job'
last_seen: '2026-10-16'
---

# Staff Software Engineer, Billing at Comfy

- **Company:** Comfy
- **Location:** Remote
- **Compensation:** $200k–$300k
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-09-12
- **Last confirmed live:** 2026-10-16
- **Apply:** https://jobs.ashbyhq.com/comfy-org/5fe87378-ee26-4e28-b1a0-154e39875a38

## Job description

## The Role

Comfy lets people build creative workflows that combine open-source models running on our GPUs with paid APIs from model providers. Every run has a cost. Customers need to understand what they’re spending, and we need to charge accurately as models, prices, and products change. You’ll own the engineering behind that: how we meter usage, collect payments, manage credits and subscriptions, and protect against financial abuse. You’ll make billing dependable for customers and give the team the tools to launch new pricing models with confidence. Our billing stack uses Go, PostgreSQL, Redis, Temporal, Stripe, and Metronome, alongside Python and Kubernetes across the broader platform. You’ll evolve an existing system, work across service boundaries, and take changes from design through production.

## What you’ll do

- Capture usage reliably. Build metering for GPU compute and partner model APIs. Handle delayed events, retries, and partial failures so every billable event is recorded once and attributed to the right workspace.
- Own the payment lifecycle. Improve checkout, subscriptions, credit top-ups, plan and seat changes, prorations, refunds, and failed-payment recovery. Keep Stripe, Metronome, and our application state consistent when events arrive late or systems fail halfway through.
- Reconcile charges, payments, and credits. Build automated checks across usage records, invoices, payments, and credit balances. Detect discrepancies, give operators an audit trail, and recover safely when a payment succeeds but credits never arrive. Own production reliability and turn incidents into lasting improvements.
- Make new pricing easier to ship. Build reusable pricing and entitlement systems for individual creators, teams, and enterprise customers. Make changes safe for existing subscribers as we introduce new models, products, and plans.
- Limit financial abuse. Improve spend controls and detection of suspicious usage, payment fraud, and credit abuse. Work with Support and Finance on disputes and recovery while keeping checkout and legitimate usage smooth.
- Give customers and teammates clear answers. Partner with product and frontend engineers on billing experiences, and build tools that let Support, Sales, and Finance investigate charges and resolve issues safely.

You might be a good fit if you

- Have built and operated billing or payments systems in production, with meaningful ownership of usage metering, credits, or consumption-based pricing.
- Have integrated Stripe directly and worked through subscription changes, invoices, webhooks, and payment failures beyond the happy path.
- Can reason carefully about money across distributed systems: idempotency, concurrent updates, reconciliation, rounding, and recovery after partial failure. You can explain how you found and prevented a real billing error.
- Are a strong backend engineer with experience in relational data modeling and reliable APIs. You can learn our stack and work across services to solve a customer problem.
- Care about the experience behind the numbers. You can explain technical tradeoffs to Finance, Product, and Support and use their feedback to build better systems.
- Take ownership from problem definition through rollout and operation. You use AI development tools effectively and verify their output with the care that systems handling money require.

Bonus if you have

- Worked with Metronome, Orb, or a similar metering platform.
- Built durable workflows with Temporal.
- Billed GPU infrastructure or model APIs, tracked provider costs, or built systems for changing rate cards and per-request margins.
- Built spend limits or defenses against card testing, chargeback abuse, or trial and promotional-credit abuse.
- Improved international checkout, payment-method coverage, or payment authorization rates.
- Used ComfyUI, contributed to open source, or built tools for creative professionals.

## About Comfy

Comfy (https://www.comfy.org) is the AI creation engine for visual professionals who demand control over every model, every parameter, and every output. The most powerful workflow engine for visual AI. Unlike tools that hide everything behind a prompt box, Comfy lets you connect models, processing steps, and outputs on a canvas where every decision is visible and every step is inspectable. It gives you the building blocks to create workflows nobody's imagined yet, and share them with everyone. What started as an open-source project in 2023 now has 4 million users, 60,000+ community-built nodes, and 150,000+ daily downloads. It's used by artists, filmmakers, game studios, designers, researchers, and VFX houses, including teams at OpenAI, Netflix, Amazon Studios, Ubisoft, EA, and Tencent. We're a small, intense team in San Francisco. Our team comes from Stability AI and Google, and many contributed to the ComfyUI ecosystem long before working here. Low ego, high ownership. We work hard and demand a lot of each other, but we have fun. Everyone here is building something meaningful that will end up being our life's work. If this mission excites you and you view yourself as top-tier talent, your future latent self is waiting for you at Comfy. Check out our Github (https://github.com/comfyanonymous/ComfyUI) and blog (https://blog.comfy.org). We recently raised $30M at a $500M valuation. The round was led by Craft, with participation from Pace Capital, Chemistry, TruArrow, and others.

## 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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