Software Engineer, Frontend (Shops) - Mercari

This position requires English language ability. JD is available in English only. 　本ポジションは日本語JDの用意がありません。

Introduction

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.For more information about Mercari Group’s mission, see Mercari's Culture Doc.

Equal Opportunity Hiring

Here at Mercari, we work to realize a world in which no one’s potential is limited by their background and everyone has the opportunity to freely create value. We also firmly believe that a mindset of Inclusion & Diversity is essential for us to achieve our mission.This, of course, extends to our hiring practices as well. Mercari is committed to eliminating discrimination based on age, gender, sexual orientation, race, religion, physical disability, and other such factors so that anyone who shares our mission and values can join us, regardless of their background. For more details, please read our I&D Statement.

Team’s Mission / Work Responsibilities

Team mission:

To enhance and expand the Mercari Shops platform by delivering high-quality, user-centric features that empower our customers and business sellers, driving growth and innovation in the B2C marketplace.

(Learn more about Mercari's mission and values here.)

Specific work responsibilities include the following:

• Create intuitive, seamless, and engaging user experiences for both customers and business sellers.
• Develop and deploy new features that meet market demands, leveraging the latest frontend technologies and practices.
• Work closely with cross-functional teams to ensure alignment with business goals and user needs, fostering a culture of collaboration and continuous improvement.
• Ensure the platform is scalable and performs optimally, accommodating the growth of our user base and the increasing complexity of features.
• Maintain a high standard of code quality and reliability through rigorous testing and best practices in frontend development.

Unique and 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 Qualifications

• Shared belief in Mercari’s mission and values
• Developing, operating, making decisions when selecting technology, and continuous improvement of large-scale product codebases
• Knowledge of JavaScript and TypeScript
• 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 Qualifications

• Project management and/or team leadership
• Knowledge of swc, turborepo and other frontend toolchain
• 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)
• OSS contribution experience / familiarity with the OSS community

Screening Criteria

　(See this page for details.)

Language Requirements

• English: Independent (CEFR - B2)
• Japanese: Independent (CEFR - B2)
  * For details about CEFR, see here

Related Articles

• Validation of the Price Estimation Model using data from Mercari Shops | Souzoh Intern 
• The Frontend Infrastructure Monorepo | Mercari Engineering
• t9n, i18n, l10n, g11n?! | Mercari Engineering 

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.

Work Hours

• Full flextime (no “core time” or “flex time”)
  *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 monthly installments (including fixed overtime allowance)
• Based on skills, experience, and abilities
• Reviewed twice a year
  
  

Benefits

• Complete health and social insurance
• Incentive program
• Support systems, including those that benefit the employee’s family members
  *See this page for details.

Support

• Relocation support
• Language learning support
• Translation/interpretation support
  *See this page for details.

Media

Corporate Sites

• Mercari, Inc.
• Merpay, Inc. [Japanese]
• Mercoin, Inc.
• Mercari US

Owned Media

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