Fuser - Sr. Full Stack Engineer

Remote, California, United States - Hybrid$80k - $180k+ Equity3w ago

In Office Senior NA Artificial Intelligence Full Stack Engineer Full Stack React TypeScript Cloudflare Three.js

Requirements

• 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 • 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 • 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) • 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. • 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.

Responsibilities

• 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

Benefits

• 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. • $80K–$180K USD depending on experience and zone (equity included) • $80K–$180K USD • Healthcare, dental, vision, and 401(k) (U.S. only) • Healthcare, dental, vision, and 401(k) • Flexible hours and focus on deep work • Flexible hours • Generous equity and real product ownership • Mentorship and leadership growth as we scale while staying hands-on • Mentorship and leadership growth as we scale • How We Interview • How We Interview • Intro Call – Meet one or two of us to talk about your background, our mission, and how we work. • Intro Call • 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 Conversation • Technical Demo – A scoped technical project with compensation • Technical Demo • Team Conversation – Meet with core team and have a discussion about collaboration, culture, and long-term vision. • Team Conversation • 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.