Full-stack Engineering · Full-time

Senior Software Engineer (Full Stack)

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CategoryFull-stack Engineering
LocationTokyo(On-site)
EmploymentFull-time
SalaryUp to ¥8,000,000 / year
PostedSep 15, 2026

Overview

Tokyo-based senior full-stack role requiring 5+ years of software development experience, business-level Japanese and working English. Salary is up to JPY 8 million.

Responsibilities

  • Own the design, development and maintenance of web applications across frontend and backend
  • Build APIs and server-side capabilities with one or more of Python, Node.js, .NET and Next.js
  • Develop usable, maintainable interfaces with React, Angular or Vue.js
  • Work with product, design, QA and engineering colleagues to turn requirements into reliable releases
  • Improve quality through code review, testing, troubleshooting and performance optimisation

Requirements

  • 5+ years of professional software development experience with a track record in full-stack delivery
  • Backend experience with at least one of Python, Node.js, .NET or Next.js
  • Frontend experience with at least one of React, Angular or Vue.js
  • Business-level Japanese for meetings, requirements discussions and day-to-day collaboration; native Japanese is not required
  • Working English for technical information and professional communication

Skills

Full-stack DevelopmentPython / Node.js / .NET / Next.jsReact / Angular / Vue.jsBusiness JapaneseEnglish

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