Sr. Full Stack Engineer

Why You're Here You’ll join early as our Senior Full Stack Engineer and work directly with the founding team to scale Fuser’s core platform. 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 Design 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 Must-Have Competencies 5–8 years of experience building and shipping full-stack applications Strong proficiency in React + TypeScript Backend experience with Node, tRPC, Cloudflare Workers or equivalent Solid understanding of distributed systems or real-time collaboration Experience designing APIs, database schemas, and scalable architecture Proven track record of shipping complex features in small teams Nice-to-Have Competencies Experience with canvas or node-based tools (React Flow, Blender, WebGPU) Familiarity with creative or AI-driven software Contributions to open-source projects Background or interest in art, design, music, or creative tech Our Stack Frontend: React 19, TypeScript, React Router v7, Zustand, TanStack Query, @xyflow/react, React Aria Components, Tailwind CSS, Framer Motion, React Three Fiber Backend: tRPC, Hono, Cloudflare Workers, PostgreSQL (Supabase), Drizzle ORM, Cloudflare D1, Better Auth, Stripe, AI SDK Infrastructure: Cloudflare Workers, KV, D1, Hyperdrive, Cron Triggers, Turborepo, pnpm, Node.js 22+ Observability & Tooling: Vite, ESLint, Prettier, Husky, Zod, Sentry, PostHog How We Work Hybrid, flexible, async-friendly — based in LA with 2 in-office days each week. 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 $120K–$200K USD depending on experience and zone (equity included) Signing bonus upon joining Healthcare, dental, vision, and 401(k) (U.S. only) Flexible hours and focus on deep work Generous equity and real product ownership Mentorship and leadership growth as we scale How We Interview Intro Call – Meet one or two of us to talk about your background, our mission, and how we work. Technical Conversation – Complete a live technical assessment based on a real-world problem followed by a discussion on your approach to architecture, problem-solving, and building for usability. Technical Demo – A scoped technical project with compensation Team Conversation – Meet with core team and have a discussion about collaboration, culture, and long‑term vision. We welcome candidates who may not have the “right” title but have the skills, mindset, and drive to thrive here. At Fuser, the process is the point. Fuser is a creative technology company founded by artists, educators, and engineers. We’re building tools for professionals who ideate, orchestrate, and deliver with intention. Our flagship product is a collaborative canvas for working across text, image, video, audio, and 3D, powered by the latest AI models. We’re a small team in Los Angeles designing the future of creative software: joyful, intuitive, and powerful tools for real‑world storytelling and production. #J-18808-Ljbffr