Software Engineer, Web Frontend [US App] – Mercari



  • Design and lead the implementation of new web components

  • Contribute to platform technology and strategy decisions

  • Write clean, maintainable, secure and scalable code with complete test coverage

  • Improve the UX of our web site

  • Drive high standards and best practices within the team

  • Communicate effectively with engineers, product managers, marketing, QA, and other stakeholders within the organization

Bold Challenges

  • Deliver product features in a fast-paced start-up style environment

  • Seek to gain a deep understanding of the US market to ensure Mercari’s continued global success

  • Work effectively in a multicultural environment with colleagues from various backgrounds


  • In-depth experience with Javascript ES6 and a modern front-end framework such as React, Angular or Vue

  • In-depth experience with modern CSS

  • Experience with Node.js

  • Experience working within Agile development workflows

  • Strong written and verbal English communication skills

Preferred Experience

  • Experience optimizing Javascript performance

  • Experience with Kubernetes and Google Cloud Platform

  • Experience with GraphQL

About Mercari

Largest C2C marketplace in Japan and Japan’s first tech unicorn, Mercari is aiming to become a truly global tech company. Mercari is a smartphone-focused C2C marketplace app allowing anyone with a smartphone to easily sell items they no longer need, providing a new and unique user experience.