🌐 Lead Frontend Engineer (AI × Web × Creativity)

OverviewAssetHub is building an AI-native 3D game creation platform that redefines how games and IPs are born — blending AI, art, and interactivity. We’re looking for a Frontend Engineer who can bridge design, development, and AI — crafting experiences that feel alive.

You’ll work on web applications powered by AI agents, help shape our design system and visual language, and prototype new ways to interact with generative AI.

ResponsibilitiesDesign, develop, and maintain features for the AssetHub web platform Build and integrate AI-powered systems (LLM / Vision / Voice) into real product workflows Implement automated frontend testing and performance optimizations Create advanced animations and 3D interactions using WebGL / Three.js / React Three Fiber Establish and evolve the design system and UI component libraries Collaborate with AI, backend, and design teams to deliver cohesive product experiences Required SkillsStrong experience with React / Next.js / TypeScript Experience building or maintaining design systems (Storybook, Radix UI, Tailwind, etc.) Familiarity with REST / GraphQL / WebSocket integrations Knowledge of automated testing (Playwright, Vitest, or Cypress) Deep understanding of UI/UX and animation fundamentals Nice-to-Have SkillsExperience with Three.js / R3F / WebGPU for interactive 3D rendering Experience with AI and LLM development (OpenAI, Hugging Face, LangChain, etc.) Experience using or integrating image-generation AI (Stable Diffusion, ComfyUI, Midjourney, etc.) Experience with Node.js / Python / Docker environments Familiarity with modern design workflows (Figma, Framer) Passion for games, creative tools, and interactive media Work StyleFully remote Flexible working hours English If it's interesting, we can support relocation to Japan Employment & CompensationFull-time or contractor Compensation based on skill and experience Stock option program available