[Hiring] [Hybrid] [JP] - Frontend Developer – Large E-commerce Marketplace Platform+ | Japan, Tokyo

Our client is a leading e-commerce marketplace platform in Japan, offering one of the largest online shopping experiences in the country. They provide a platform that connects millions of shoppers with thousands of merchants, focusing on high-quality user experience, scalability, and innovation in online commerce.

We are looking for a proactive Frontend Engineer with experience in JavaScript, HTML, CSS, and React/Node.js, strong skills in performance, architecture, testing, and security, who can collaborate effectively, take ownership, and drive solutions for a large-scale e-commerce platform.

Responsibilities

• Defined requirements, designed, developed, tested, and deployed frontend features for a large-scale e-commerce platform
• Collaborated with product managers, backend engineers, and cross-functional teams
• Monitored system stability and performance, and implemented performance optimizations
• Improved frontend architecture through refactoring and code optimization
• Troubleshot production issues and ensured high system reliability

Technologies

• JavaScript, HTML, CSS
• React.js / Node.js
• Git
• Unit testing (Jest or similar frameworks)

Key Skills

• Frontend performance optimization
• Web security best practices
• System design and architecture
• Unit and integration testing
• Collaboration in an international engineering environment

Senior (at least around 7 year+ of professional experience or the equivalent skills)

Mandatory Qualifications:

\- Development experience with JS, HTML, CSS for more than 3 years (ideally more than 7 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

Desired Qualifications:

\- Experience with ESLint

\- Experience with unit testing implementation in JavaScript (Jest, Intern, WDIO)

\- Ability to design front-end architecture

\- DevOps experience

\- Experience of Git

\- Always act in active way and lead to the solution

Languages

• English: Fluent
• Japanese: Optional / a plus

Work Environment

• Fast-paced, dynamic global environment with collaborative teams across multiple locations

Salary: ¥6.5M – ¥11M JPY per year Location: Hybrid (4 days in the office, 1 day remote) Office Location: Tokyo, Japan Working Hours: Flexible schedule with core hours from 11:00 AM to 3:00 PM Visa Sponsorship: Available Language Requirement: English only

Apply now or contact us for further information:
[Aleksey.kim@tg-hr.com](mailto:Aleksey.kim@tg-hr.com)

※The position level and salary have been updated.