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Senior Frontend Engineer - Lead UX for Global Ad Platform
| Location | Tokyo - 23 Wards |
| Job Type | Temporary |
| Salary | 6 million yen ~ 8 million yen |
Job Description
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.
Client Details
Our client is a large, global technology company operating a sophisticated advertising and performance marketing platform. With distributed engineering teams across Asia, they leverage data-driven solutions to connect advertisers and publishers at scale.
Description
- 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
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
To apply online please click the 'Apply' button below. For a confidential discussion about this role please contact Serena Wu on +81 3 6627 6137.
General Requirements
| Minimum Experience Level | No experience |
| Career Level | Mid Career |
| Minimum English Level | Fluent |
| Minimum Japanese Level | Daily Conversation |
| Minimum Education Level | Bachelor's Degree |
| Visa Status | Permission to work in Japan required |
Required Skills
- 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
- 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 Location
- Tokyo - 23 Wards
Work Conditions
| Job Type | Temporary |
| Salary | 6 million yen ~ 8 million yen |
| Industry | Software |
