Senior Frontend Engineer

Date PostedJune 19, 2026LocationTokyo, JapanCompanyMichael Page International Japan K.K.SalaryJPY 6000K - JPY 8000KTypeit (pc, web, unix) - front-end engineer

Job Summary

Lead the frontend development of a high-traffic affiliate platform used across multiple markets. Partner with cross-functional teams to deliver scalable, high-performance user experiences that directly impact product growth. This role involves end-to-end development, from requirements analysis to deployment and operations.

Responsibilities

  • Lead end-to-end frontend development lifecycle
  • Build scalable, high-performance web applications
  • Collaborate with cross-functional teams in a global setup
  • Conduct code reviews and set engineering standards

Required Skills

  • 5+ years frontend development experience
  • Expertise in JavaScript/TypeScript and React
  • Proficiency in HTML/CSS/Responsive design
  • Business-level English proficiency

Job Details

Responsibilities: - Lead the end-to-end frontend development lifecycle: requirements analysis, UI collaboration, development, testing, deployment, and operations. - Build and maintain scalable, high-performance, and user-friendly web applications. - Translate business requirements and design mockups into responsive, accessible frontend code. - Develop complex UI components using modern frameworks (React preferred). - Ensure cross-browser compatibility, performance optimization, and maintainability. - Troubleshoot frontend issues, conduct root cause analysis, and implement improvements. - Evaluate and introduce new technologies, tools, and best practices. - Conduct code reviews and contribute to engineering standards and quality improvements. - Collaborate closely with product managers, designers, and backend engineers in a global setup. Required Profile: - 5+ years of frontend-focused web application development experience. - Strong expertise in JavaScript/TypeScript and modern frameworks (React, Vue, or Next.js). - Solid experience with HTML, CSS, and responsive design principles. - Understanding of frontend architecture, design patterns, and scalable UI practices. - Familiarity with open-source tools and integration approaches. - Bachelor's degree in Computer Science, Engineering, or a related field. - Business-level English proficiency. Nice to have: - Experience with Figma or similar prototyping tools. - Exposure to Docker or containerized environments. - Basic backend knowledge (e.g., Java or Python). - Knowledge of browser rendering, performance optimization, and accessibility standards. - Experience contributing from requirements definition stage. - Leadership or mentoring experience. Job Offer: - Opportunity to lead frontend development for a globally impactful product. - Collaborative, international engineering environment. - Hybrid work style. - Standard working hours (9:00-17:30) with weekends and holidays off.