Software Engineer, Backend [US App]

  • Tokyo
  • Remote OK - Anywhere in Japan
  • Full-time
  • June 16, 2022
Apply from Japan Only
(You must live in Japan to apply)
Language Requirements
Japanese: Not Required 👍
English: Business Level

Position Overview

Work Responsibilities

  • Design, develop, test, deploy, maintain, and improve backend software

  • Write code in Go and PHP

  • Work with Product Managers and Designers

  • Collaborate with iOS and Android Engineers to develop new features

  • Collaborate with QA Engineers to deliver high-quality features quickly

  • Work with third-party vendors to integrate new functionality

  • Solve complex architectural challenges

  • Write and maintain technical documentation

Bold Challenges

  • Develop product features in a fast-paced Silicon Valley startup environment

  • Design highly scalable systems that can support the continued growth of Mercari US

  • Proactively share ideas and contribute to our engineering culture

  • Gain a deep understanding of the US market to ensure Mercari’s continued success

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

Required Experience

  • 3+ years of industry programming experience

  • Professional engineering experience with consumer applications

  • Exceptional communication skills

  • Experience developing complex software systems scaling to millions of users with production-quality deployment, monitoring, and reliability

  • A positive attitude and an insatiable desire to learn

Preferred Experience

  • Experience with PHP or Go

  • Experience designing, developing, and managing microservices

  • Experience with Docker and Kubernetes or similar systems

  • Experience working on GCP or AWS or similar systems

  • Excellent knowledge of distributed systems

  • Demonstrated ability to write code with appropriate tests

  • Experience leading or managing teams

  • Experience working in large, cross-functional teams

  • Experience mentoring engineers

  • Experience working in an Agile environment

  • Experience with JavaScript ES6 and modern frontend frameworks such as React, Angular or Vue

Screening Criteria

  • Please provide your resume in English.

  • We will conduct interviews in English.

  • We will be looking for a shared belief in Mercari’s mission and values.

  • Hiring Process Overview (subject to change)

    • 1. Doc screening

    • 2. Skill test via GitHub (We will check Go or PHP skill)

    • 3. Interviews (3-4 rounds. There are some cases where you will meet multiple members in one round)

    • 4. Background check

    • 5. Offer

    • 6. Hire

  • *Check here for more details

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, Backend [US App] at Mercari
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