This position is closed and is no longer accepting applications.

Software Engineer, Backend (Ads)

Mercari Minato-ku, Tokyo
  • 💴 No salary range given
  • 🏡 Fully remote
  • 🧪 Minimum years of experience unspecified
  • 💬 No Japanese required
  • 🌏 Apply from abroad
  • 🧳 Relocate to Japan

About Mercari

Mercari Minato-ku, Tokyo

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

Key benefits

  • Full flextime
  • Outside work encouraged
  • Employee stock ownership program

About the position

To realize Mercari’s vision of leading the circular economy, we aim to provide new tools to businesses involved in the production and sale of products, adding value to the primary distribution value chain.


  • Launching an advertising solution on a media platform with over 20 million Monthly Active Users.
  • Building and implementing the architecture for the advertising system.
  • Improving and optimizing advertising performance.
  • Developing mechanisms to streamline advertising operations.


  • Shared understanding and belief in our company’s mission and values
  • Experience in developing and operating large-scale system, as well as experience in technology selection and codebase improvement
  • Experience in API development using languages such as Go, PHP, Java, and more.
  • Design and development capability with a focus on performance and scalability
  • Experience in the development and operation of advertising systems

Nice to haves

While not specifically required, tell us if you have any of the following.

  • Project management or team leadership experience
  • Communication skills to collaborate with stakeholders and drive product development
  • Experience in development and operations using Microservices architecture
  • Knowledge and experience in databases (RDBMS/NoSQL), networking, Linux, monitoring systems, logging, operations, and SLO/SLA
  • Experience in development in the cloud, particularly with GCP or AWS.

Meet Mercari's Developers

Jieqiong shares her experience of joining Mercari and working as a tech lead. She explains their engineering culture and provides tips for potential applicants.

Read her story...

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