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Jobs→フリー株式会社→AI Driven Development Platform Engineer (Frontend / Design System)

AI Driven Development Platform Engineer (Frontend / Design System)English summary from Japanese

フリー株式会社

✓ Detailed
Salary
550万円 〜 900万円
Apply on FINDY

Role summaryEnglish summary from Japanese

English summary for screening — check the original posting before applying.

freee is seeking an AI Driven Development Platform Engineer to redefine development processes with AI and build a design system. The goal is to improve development productivity, reinforce brand identity, and achieve outstanding visual design for their Integrated Management Platform.

Must-haves

  • Experience improving development processes using AI agents
  • 3+ years of web frontend development experience
  • Experience developing applications with complex state management
  • Experience designing and implementing UI components
  • Ability to apply the latest AI-related information to practical work
  • Robust implementation skills in TypeScript
  • Understanding and experience using package managers (npm, yarn, pnpm)
  • Understanding of general UI design principles for business systems
  • UI engineering skills (React, Vue, Angular)

Nice-to-haves

  • Experience in UI design and implementation for business systems
  • Backend development experience (e.g., Ruby on Rails)
  • Experience contributing to OSS activities and communities

About the Company

フリー株式会社

Categories
SaaSFintechProduct Company
Headquarters
東京都品川区大崎1-2-2 アートヴィレッジ大崎セントラル
Visit Website
Posted6/15/2026
Sourcefindy
  • Experience building and operating CI/CD environments
  • Experience designing and developing large-scale frontend applications
  • Experience building and operating design systems for SaaS products
  • Project management experience (QCD)
  • Experience implementing orchestration using AI Agents
  • Experience releasing OSS or services utilizing AI
  • Experience with agile development methodologies
  • Design engineering experience
  • Deep understanding of web standard technologies (HTML/CSS/JavaScript)
  • Knowledge of frontend security, accessibility, and performance tuning
  • Domain modeling and use case modeling
  • Knowledge of frontend test automation
  • Tech stack

    TypeScriptnpmyarnpnpmReactVueAngularRuby on Rails

    Work style

    Onsite in Tokyo Office (3 min walk from Osaki Station). Special professional work system with deemed working hours of 10 hours and 15 minutes.

    Other notes

    Monthly salary: ¥460,000 - ¥751,000. Annual salary: ¥5.5 - ¥9.0 million. 3-month probationary period.