Sr. Full Stack Engineer

About the role

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 AI Integrations: 50+ APIs (OpenAI, Anthropic, Runway, FAL, and more)

HOW WE WORK

- Remote-friendly — we welcome candidates anywhere in the U.S.

- LA-based core team — the team works hybrid, and you’ll collaborate remotely via async tools, Slack, and regular touchpoints.

- Optional in-person team weeks — in Los Angeles for planning, onboarding, or deep collaboration.

- Creative-first culture — we care about accessibility, design, and feel.

- High trust, high standards — ownership early, autonomy always.

- Small team, big impact — every commit shapes the future of the product.

COMPENSATION & BENEFITS

- $80K–$180K USD depending on experience and zone (equity included)