Developer Jobs in Japan

Software Engineer, Android

Roppongi, Tokyo

About Mercari

Mercari is a marketplace app that makes it easy for people to safely sell and ship their things. Launched in 2013, the Mercari app has been downloaded over 100M times, and is now among the largest peer-to-peer selling platforms globally.

Our mission

The world is full of objects and services being produced and sold, but many of them are thrown away without people realizing that they might be valuable to someone else, wasting valuable natural resources. To contribute towards eliminating waste, we have launched Mercari, a marketplace where people can buy and sell easily and safely.

The goal of the engineering organization

At Mercari, our organization constantly welcomes changes and new challenges, cooperates and co-creates, is diverse, offers freedom, and encourages all of us to take ownership and make our own decisions.

We are open to overseas candidates looking to relocate to Japan, and will support you in obtaining your visa.

About the position

Mercari’s mobile team is currently working on a major re-architecture of the Android/iOS apps in order to create a structure where they can conduct further large-scale development while maintaining speed and security. The team is also working on various other projects, such as developing new features and improving the UX.


  • Improving Mercari’s UI/UX
  • Improving quality with a focus on stability and performance
  • Continuous improvement of the codebase, including the major re-architecture
  • Handling updates for the Android app
  • Developing new services and linking them with other services


  • Experience developing native Android apps
  • Extensive knowledge in object-oriented software development, solid MVVM/MVP architecture, multithreading, * networking and memory management.
  • Experience with continuous improvement of codebases and large-scale team development
  • Knowledge of standard Android libraries and frameworks
  • Ability to develop features while conducting unit tests using JUnit and Mockito
  • Software development experience with Kotlin at work

Application instructions

Apply Now Please mention "Tokyo Dev" in the referral section.

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