Full stack AI-engineer

AssetHub Tokyo February 5 2026
  • 💴 No salary range given
  • 🏢
    No remote
  • 🌏
    Apply from abroad
    Relocate to Japan
  • 💬
    No Japanese required
    Business English
  • 🧪
    Intermediate to senior levels
    Unspecified years of experience
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About AssetHub

AssetHub Tokyo

AssetHub is a next-generation 3D creation tool that uses AI to help creators build and edit 3D assets up to 100× faster. Built for game developers, it changes how games and 3D content are made by bringing together Games, IP, and AI to deliver speed, scale, and globally competitive quality.

About the position

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.

Requirements

  • Design, develop, and maintain features for the AssetHub web platform
  • Build and integrate AI-powered systems (LLM / Vision / Voice) into real product workflows
  • Design backend architecture for scalability
  • 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
  • Strong experience with React / Next.js / TypeScript
  • Strong experience with backend architecture like Clean Architecture, DDD etc
  • Must be familiared with AI agent based development
    • How to make cursor.rule, claude.md, better prompt, any automation with AI agent, frontend test etc..

Nice to haves

While not specifically required, tell us if you have any of the following.

  • 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
  • Experience 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
APPLY FOR THIS POSITION
DO YOU NEED MORE INFO?
ASK A QUESTION

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