Software Engineer

Tokyo
Remote OK - Anywhere in Japan
Full-time
October 17, 2023

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

Please see this page.

Language Requirements

English: Business level
Japanese: Conversational (optional)

Working Conditions

Employment Status

Full-time

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.)

Office

Roppongi

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.

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About Mercari

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.

Japanese Language Policy
Mercari doesn’t require Japanese skills for developers to do their day to day jobs. It’s becoming a pretty international company, but they have many Japanese engineers, so the more Japanese you know the better.

Mercari believes that it’s essential for team members to meet halfway during daily communications. They use the CEFR Framework to understand language levels and guide members in improving their skills. See more info on CEFR here.
Visa Sponsorship
Mercari sponsors Japanese visas for engineers. The only condition is that you meet the requirements of the Japanese government (but this is the case at every company). This usually means that you'll need a bachelor's degree or 10 years of demonstrated work experience in your field.
Paid Leave
- Two days off per week (Saturday and Sunday), Japanese national holidays, New Year's vacation
- Paid Leave (starting with 10 days, adding 1 day each year)
- Sick leave (10 days per year)
- Relax days (3 extra vacation days that can be taken year-round)
- Bereavement Leave
- Maternity/paternity and caregiving support
- Caregiving leave
- Paid childbirth leave and gift
- Paid honeymoon leave and gift
- Condolence money and paid leave
Benefits
🏥 Health insurance

💹 Employee stock option plan

🚃 Full transportation coverage

💻 The latest equipment - computer, monitor, smartphone

🍹 Free drinks

💴 Seminar participation support

📓 Book purchases

👩‍🎓 Language learning support

🌎 Translation/interpretation support

🍔 Chat lunch

💛 Financial support for fertility treatment

💜 Financial support for childcare costs

💚 Financial support for private preschools
Remote Work
Mercari currently operates on a hybrid model, combining both office and remote work.
Work style
(Dev Team Members)
- Fixed working hours 10:00-19:00.
- Flex time (core hours 12:00-16:00, 60 minute lunch)
Tech Stack
* Backend Languages: Go & PHP * Frontend Languages: HTML, CSS, JavaScript (TypeScript, React.js, Next.js, Redux, etc) * Mobile Languages: Kotlin, Swift, Java, Objective-C * Infrastructure: Dedicated servers, MySQL, memcached, Nginx, Solr, Elastic Search, Google Cloud Platform (Compute Engine, Kubernetes Engine, Spanner, Cloud SQL, Datastore, Storage, Stackdriver Logging, Dataflow, Pub/Sub, etc.) * Configuration management tool: Terraform * CI/CD: Circle CI / Spinnaker * Monitoring: Stackdriver Monitoring / Datadog / PagerDuty / Sentry / Mackerel / NewRelic / ELK Stack * Knowledge Tools: Confluence / Crowi * Other: GitHub / Slack / JIRA * Process: Scrum
Diversity
There is more diversity in the world than any of us can imagine. Diversity & Inclusion (D&I) is strongly linked to Mercari’s mission as we aim to build a company environment where everyone can be themselves and work to their fullest potential.

Diverse Backgrounds

We already have members with many diverse backgrounds at Mercari. Our goal is for everyone to have equal chances to do their best work, without dividing individuals into groups based on age, gender, sexual orientation, race, religion, physical ability, or any other identifying feature, and without classifying anyone as “majority” or “minority.” We strive to create various policies and initiatives to make this a reality.

No Quotas

Mercari does not set quotas, such as a 50:50 gender balance or a specific number of countries represented, because we feel labeling groups and people in terms of numbers goes against our ideal of respecting the diversity inherent to all individuals. Meaningful efforts towards diversity are reflected not in the quantitative goals many companies tend to rely on, but in the thoughts and behavior of every person within.

Our Focus

Providing fair chances for members of all backgrounds Fostering a culture of learning to allow everyone to reach their full potential Creating an organization built on trust so that everyone working here feels like they truly belong Our first step is for D&I to take root in the thoughts and actions of all members at Mercari.