Software Engineer

About Mercari

We believe the world needs a place where people can exchange their loved goods. That’s why we built Mercari—to connect people who want to buy and sell things of emotional value through their mobile phones. Mercari has grown to become a leading community-powered marketplace that brings together millions of people every day.

Mercari Dev Meetups

Position

Mercari’s culture has been central to the company since our founding, with the three core values of Go Bold, All for One, and Be a Pro. In addition, the “Trust & Openness” value was introduced to embody our culture of mutual trust, where information remains transparent and rules are kept to a minimum. Regardless of how big Mercari gets, our culture is essential to achieving our mission and will be promoted throughout our organization.

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.

Your qualification

• 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

Will be a plus

• 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)

What we offer

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 Location

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 remotely. *Exceptions made for certain kinds of work

Work Hours

• Scheduled working hours: 10 AM – 7 PM
• Currently, due to COVID-19 pandemic, we have introduced a full-flex system without core time to increase the choice of working hours and allow for more flexible working styles. (*does not apply to all positions)

Holidays

• Two days off per week (as well as national holidays, New Year's break, etc.)
• Paid leave, congratulatory and bereavement leave, relax days, sick leave

Salary

• Annual salary paid in 12 installments (monthly)
• Based on skills, experience, and abilities
• Reviewed twice a year

Benefits

• Complete health and social insurance
• Incentive program
• Support systems, including those that benefit employee family members
• Language learning support
• Translation/interpretation support
• *See this page for details

Additional details

Media

Corporate Sites

• Mercari, Inc.
• Souzoh, Inc.
• Mercari US

Owned Media

• Mercari Careers
• Mercari Engineering Portal
• Mercan - Introduces the people that make Mercari
• Mercari US Careers
• Mercari US Blog