Frontend Developer

Date PostedMay 29, 2026LocationTokyo, JapanCompany4M Career KKSalaryJPY 6000K - JPY 10000KTypeit (pc, web, unix) - front-end engineer other job type - other job type

Job Summary

The Frontend Developer will be responsible for defining requirements, designing, programming, testing, and deploying systems. You will collaborate with PDM and cross-functional teams to ensure high system stability and performance. The role involves continuous optimization, architecture maintenance, and troubleshooting to deliver robust digital solutions.

Responsibilities

  • Design and develop system requirements
  • Collaborate with PDM and system teams
  • Maintain system architecture and performance
  • Perform troubleshooting and refactoring

Required Skills

  • 3+ years JS/HTML/CSS
  • React.js or Node.js proficiency
  • Frontend performance optimization
  • System design and testing
  • Fluent English & Business Japanese

Job Details

Position Details: - Define requirements, design, programming, testing, and deployment to deliver the system. - Collaborate with PDM, internal members, and upstream/downstream system teams. - Monitor system stability and performance, optimize performance, design and maintain system architectures, refactoring, optimization, and troubleshooting. Mandatory Qualifications: - Development experience with JS, HTML, CSS for more than 3 years - Development experience with React.js or Node.js - Deep understanding of frontend performance optimization - Knowledge of Web security - Experience of system design - Experience of testing (Unit Test, Integration Test) - Communication skill in English Other Requirements: - English Level: Fluent (TOEIC 865-) - Japanese Level: Business Level (JLPT Level 2 or N2) Benefits: - Social Insurance - Commuting/Transportation Allowance - Relaxation Facilities - Holidays: Five-Day Workweek, Summer Holidays, Winter Holidays, Refresh Holidays, Sick Leave, Paid Holidays, Child-care Leave