Software Engineer

  • Tokyo
  • Remote OK - Anywhere in Japan
  • Full-time
  • June 27, 2023
Apply from Anywhere 👍
Relocation to Japan 👍
(Overseas visa sponsorship supported)
Language Requirements
Japanese: Not Required 👍
English: Business Level

Position Overview

Work Responsibilities

  • In order to break down the barriers that typically divide people in software development, we refer to everyone as software engineers. As a company, we believe all software engineers should use the most appropriate technology available, so we don’t limit people to particular roles or technology. This does not mean that we don’t believe in specialization, but we think that someone’s work should not be limited by their job title. 
  • Engineering Culture
  • Technology Stack


Bold Challenges

  • We are looking for people that are interested in our services, mission, and values, and want to work where engineers can go bold, use the latest technology, make autonomous decisions, and take on challenges at a rapid pace.


Required Experience

  • Shared belief in Mercari’s mission and values
  • Developing, operating, making decisions when selecting technology, and continuous improvement of large-scale product codebases
  • At least 3 years of experience in at least one of the following technical area:
    • Backend: Design, development, and operation of APIs using Go, PHP, or Java
    • Frontend: Development related to frontend fields such as web browsers, JavaScript, TypeScript, React.js, Next.js, or Redux
    • Mobile: Development using Swift or Kotlin for iOS and Android
    • Data Platform: Development using distributed processing frameworks (Dataflow/Spark/Kafka/Flink, etc.) and knowledge of data schemas represented by Avro and Protocol Buffers, along with file formats (Parquet/ORC, etc.)
    • Ability to design and develop with performance and scalability in mind
  • Extensive knowledge of object-oriented software development, networking, memory management, and software testing
  • Good communication and interpersonal skills with the ability to collaborate with multiple stakeholders


Preferred Experience

  • Project management and/or team leadership
  • Development and operation in a microservices architecture
  • Knowledge of and experience with database (RDBMS, NoSQL), network, Linux server, surveillance system, logging, SLA, SLO, and system operation
  • Cloud development experience (preferably GCP or AWS)
  • Understanding of UI development
  • OSS contribution experience / familiarity with the OSS community


Screening Criteria


Language Requirements

  • English: Business level
  • Japanese: Conversational (optional)


Working Conditions

Employment Status


  • Probationary period: First 3 months after joining the company. (During this period your contract conditions will be the same as that of a permanent employee.)




  • Smoking is prohibited within our offices

  • Mercari has introduced a work style policy called “Your Choice.” Each member is free to choose whether they want to work in the office or work fully remote. ​*Exceptions made for certain kinds of work.

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

Circulate all forms of value

To unleash the potential in all people

“What can I do to help society thrive with the finite resources we have?”

The Mercari marketplace app was born in 2013 out of this thought by our founder Shintaro Yamada as he traveled the world. We believe that by circulating all forms of value, not just physical things and money, we can create opportunities for anyone to realize their dreams and contribute to society and the people around them.

Mercari aims to use technology to connect people all over the world and create a world where anyone can unleash their potential.

View Mercari's company page

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Software Engineer at Mercari