Software Engineer, Frontend - Mercoin
Mercari, inc.Osaka, Japan • Minato, Japan
Posted January 27, 2026
Full Time
About the Company
Mercari, Inc. is a Japanese e-commerce company offering a marketplace app and payment services.
Job Description
Mercari Group is looking for a Software Engineer (Frontend) to join their team. The ideal candidate will have experience in developing and operating large-scale project codebases, technology selection, and continuous improvement. They will be involved in the development of web applications related to Mercoin's services, such as Mercari Web and dashboard for merchants. The role requires Japanese language ability (Independent - CEFR B2) and experience in JavaScript, TypeScript, React, and Next.js.
Requirements
- Experience in developing and operating large-scale project codebases
- Experience in JavaScript, TypeScript, React.js, Next.js, and frontend single-test frameworks
- Understanding of UI/UX development
- Ability to design and develop with performance and scalability in mind
- Rich knowledge of API design, memory management, software testing, and performance tuning
- Ability to communicate and collaborate with various stakeholders
Benefits
- Flexible hours (no core hours)
- Hybrid work arrangement
