Why You're Here

As a Sr. Full Stack Engineer, you'll operate with autonomy in a small, fast-moving team, working directly with the CTO and founding product engineer to scale Fuser’s core platform. This is a hands-on engineering role — you will spend most of your time designing, coding, and shipping features across the stack.

We’ve launched our public beta with a strong foundation — 100k+ lines of code, multiplayer infrastructure, a node-based canvas, and dozens of AI integrations. Now we’re building toward collaboration, subgraphs, post-production, and operation nodes. You’ll help ship features, shape abstractions, and keep Fuser fast, stable, and expressive for creative professionals.

What You’ll Do

• Build and ship key features across the stack with the founding team
• Own complex systems such as multiplayer, asset pipelines, or execution flows
• Architect clean, scalable abstractions that simplify complexity without limiting control
• Improve performance, reliability, and developer experience
• Help define the architecture for future AI-native UI/UX patterns
• Collaborate tightly with design and product — we move quickly and iterate often

What You’ll Bring

• 5+ years of experience shipping full-stack applications
• Strong skills in React + TypeScript, with backend depth in Node, tRPC, or Cloudflare Workers
• Understanding of distributed or real-time systems
• Experience designing APIs, databases, and data flows
• Curiosity about creative tools, design systems, or AI interfaces
• A builder mindset — you enjoy coding daily and owning your work end-to-end

Bonus Points For:

• Experience with canvas or node-based tools (React Flow, Three.js, WebGPU)
• Familiarity with AI or creative software
• Open-source contributions or creative coding background

Our Stack

Frontend: React 19, React Router 7, Zustand, React Flow, Three.js
Backend: Cloudflare Workers, tRPC, Drizzle ORM, PartyKit, Durable Objects
Database & Storage: Supabase (PostgreSQL), R2 50+ APIs (OpenAI, Anthropic, Runway, FAL, and more)