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Skills: php go mysql java rdbms

Introduction

Our Mission

Mercari is a Japan-based company with the mission of “creating value in a global marketplace where anyone can buy & sell.” Having continuously worked toward this goal since our founding in 2013, we are now transforming from a startup into a global player. While this transformation brings its own specific set of challenges, we believe that solving them one after another will allow us to fully achieve our mission. Are you interested in working together to take on these exciting challenges?

Our Culture

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.

Position Overview

Work Responsibilities

  • At Mercari, we have been making changes in order to implement a microservice architecture on the backend of our app. However, some of our core systems (for example, the Item Transaction feature) are still running as part of the PHP monolithic application that has supported our growth so far. Our team is responsible for developing and maintaining these core systems. Given that the systems are complex and have a long history at Mercari, agile development remains a challenge for us. To solve this, we have to ensure that our core systems are loosely coupled in order for us to both augment these systems and contribute to our business growth going forward.

  • The Mercari Engineering Division has defined this new direction as building a "Robust Foundation for Speed." In order to achieve our company mission under this new direction, rather than migrating to microservices, we have taken on a more essential and worthwhile challenge: modularizing. Specific work responsibilities for this position include the following:

    • Developing and maintaining core features (PHP or Go, etc. as needed)

    • Designing loosely coupled/modular systems

    • Working with PMs on a series of development tasks (plan, design, implementation, QA, release, etc.)

    • Investigating inquiries from customer support or other development teams

    • Conducting system operation tasks, including responding to alerts while on call

Bold Challenges

  • Besides your software engineering skills, in this position, you will be able to utilize comprehensive problem-solving skills. You will need to approach these problems by setting and testing hypotheses, and you will need a lot of curiosity and attention to detail in order to tackle core systems that run a huge number of item transactions everyday. These are important systems that handle user assets, so it’s important to go beyond our team’s domain to understand the features’ end-to-end behavior and how they relate to other features. Some features, however, can be hard to fully understand simply by reading the code because they are too complex or old. This will require that you embrace some level of uncertainty and strategically set and test hypotheses to check them. Additionally, you will need to always keep your goals in mind and try to find solutions thinking outside the box.

Required Experience

  • Shared belief in Mercari’s mission and values

  • Experience developing and operating systems for large-scale products, selecting technologies and improving their codebase

  • Experience in API development using programming languages such as Go, PHP, or Java

  • Experience in designing and developing with databases (MySQL or similar RDBMS)

  • Ability to design and develop products while considering performance and scalability

  • Extensive knowledge of object-oriented software development, networks, memory management, and software testing

  • Good communication skills to collaborate with stakeholders and teammates on product development　

Preferred Experience

  • Domain knowledge in e-commerce, order management, payments, shipping and delivery, etc.

  • Experience with project management or team leadership

  • Experience with Scrum

  • Experience developing and operating systems using microservice architecture

  • Knowledge of and experience with databases (RDBMS/NoSQL), networks, Linux, monitoring systems, logging, and SLO/SLA

  • Experience with software development in the cloud (GCP, AWS or Azure)

  • Experience contributing to an open-source project

Language Requirements

  • Fulfills either of the following:

    • a. English: Basic (CEFR - A2) preferred / Japanese: Proficient (CEFR - C1)

    • b. English: Proficient (CEFR - C1) / Japanese: Basic (CEFR - A2) preferred

　 *For details about CEFR, see here.

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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

  • 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 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 employee family members

  • Language learning support

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

Support



Job Benefits:

  • Health insurance
  • Paid time off, summer/New Year's vacation, congratulatory leave & more
  • Incentive Program
  • Full transportation coverage
  • Custom PC, dual screen if needed
  • Company smartphone
  • Visa support
  • New Employee Benefits "mercibox"
  • 5-day work week (Sat/Sun off)
Apply
Skills: espresso xcuitest playwright smartphone testing

Introduction

Our Mission

Mercari is a Japan-based company with the mission of “creating value in a global marketplace where anyone can buy & sell.” Having continuously worked toward this goal since our founding in 2013, we are now transforming from a startup into a global player. While this transformation brings its own specific set of challenges, we believe that solving them one after another will allow us to fully achieve our mission. Are you interested in working together to take on these exciting challenges?

Our Culture

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.

Position Overview

Work Responsibilities

  • As a QA/Test Engineer, you will be part of the process of developing new features and improving current features of the Mercari app from the customers’ point of view.

  • Working in a fast-paced, quality-focused environment, you will be involved in quality-assurance related activities throughout the entire development process, from planning to final release, while understanding the overall development process.

Job description

  • Reviewing and providing feedback for plans/specs created by product managers

  • Designing/implementing tests for automation testing

  • Developing/improving processes for quality-assurance related activities

  • Carrying out quality analysis using quantitative/qualitative data to suggest improvements to developments teams

  • Collaborating with third-party contractors to build a system for quality assurance

Bold Challenges

  • In this position, you will be responsible for quality assurance for Mercari, a marketplace app with 18 million monthly active users.

  • You will be responsible not only for testing for quality assurance, but also various kinds of tasks such as understanding customer issues, developing processes, analyzing data, and creating quality guidelines in order to assure quality in the overall development process.

  • Apart from that, this position will allow you to think about quality from the customer’s point of view and how to assure quality from scratch.

Required Experience

  • 3 years+ experience testing smartphone apps and web systems (designing/implementing tests, test management, optimizing tests)

  • 3+ years experience creating/coding automated testing (ex: Espresso, XCUITest, PlayWright)

  • Ability to communicate with PMs/engineers in development teams and members in QA teams to solve issues

  • Experience in solving problems and improving processes in your team

Preferred Experience

  • QA experience in working within an Agile Scrum based development process

  • Experience in development web / smartphone apps

  • Selection of test tools or developing them yourself

  • Experience in performance testing, security testing, and internationalization testing

  • Software development experience in a CI/CD environment

  • Experience in quality analysis

Our Ideal Candidate

  • Motivation to provide a high-quality service for our users

  • Capable of taking on bold challenges and learning from mistakes

  • Capable of working independently and taking the initiative to lead the team to success

  • Possesses a strong sense of responsibility and works hard to achieve their goals

  • Capable of communicating proactively and producing output in a highly global team

Language Requirements

  • English: Conversational level

  • Japanese: Limited business proficiency level or higher

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

  • 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 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 employee family members

  • Language learning support

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

Support



Job Benefits:

  • Health insurance
  • Paid time off, summer/New Year's vacation, congratulatory leave & more
  • Incentive Program
  • Full transportation coverage
  • Custom PC, dual screen if needed
  • Company smartphone
  • Visa support
  • New Employee Benefits "mercibox"
  • 5-day work week (Sat/Sun off)
Apply