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Updated 2021-07-09
Activated 2021-07-09

**Backend Developer (English OK)**

  • Recruiter
  • Staff Level
This posting is managed by: 4M Career KK
Company Name Company is not publicly visible
Job Type
4M Career KK
IT (PC, Web, Unix) - Web Application SE
IT (PC, Web, Unix) - Database SE
IT (Mainframe) - Database SE
Industry Telecommunications/Information Services
Location Asia Japan Tokyo

Job Description Responsibilities:

We are looking for a passionate and innovative engineer who can bring fresh ideas, lead the development and operation by getting the peers involved proactively, to join us together in delivering the best shopping experiences with high speed and time-to-market.

To understand business requirements, and deliver features with high quality and speed
To design, develop, test, and operate large scale e-commerce systems
To perform maintenance, monitoring, troubleshooting and bug-fix (24/7)
To perform system improvement (i.e. refactoring, adopting appropriate technologies and system architecture, and optimizing the system performance with a sufficient load test)
Minimum Qualifications:

Good experience in CI/CD automation of service delivery (using Jenkins/git, etc.) as DevOps
Good experience in both Waterfall and Agile practice, and understand the spirit behind them
Good experience in traffic management by using CDN and caching systems
Experience in developing GraphQL / JSON RPC / gRPC server implementations
Team leading experience (5~6 people) to achieve targets on schedule under high pressure
Operate middleware, such as Apache, Nginx, Tomcat, Weblogic and other open-source framework
Experience in supervision of software contents management (Git, Maven, and Gradle)
Experience in utilizing GNU utility on Linux distribution to take further investigation
Experience in Architecture Design by taking lots of system characteristics
TOEIC score over 650
Try to tackle proactively against highly challenging issues and manage to get things done
Can convince all stakeholders with choosing the best technical option with long-term and panoramic vision
Preferred Qualifications:

Over 4 years experience in designing and developing RESTful API and Microservice architecture as a whole
Proven hands-on Software Development experience in designing and developing applications using Java / Java EE platforms (JVM mechanism such as class loading, memory management, and GC tuning)
Object-Oriented Analysis and design using common design patterns (GoF, SOLID principles, and functional programming)
Experience in maintaining unit-testing suite at state-of-art level
Experience in Spring Framework
Experience to host Java application server (Tomcat, WebLogic / Jetty / Undertow, etc.) and configure them for production use
Improve with the people around you by accepting given legacy system and rules
Ability to try to pursue an issue meticulously and to take care in not missing details
Ability to not be fixated on ideal solutions from a technical perspective and come up with a realistic idea to meet business requirements
Company Info we can make the future better by what we do today.

So we challenge ourselves to evolve, innovate and experiment,
to create a better, brighter future for everyone.

Today, our 70+ businesses span e-commerce, digital content,
communications and fintech, bringing the joy of discovery to almost
1.3 billion members across the world.
English Level Business Conversation Level (TOEIC 735-860)
Japanese Level None
Salary Depends on experience   
Other Salary
Social Insurance
Commuting/Transportation Allowance
Holidays Five-Day Workweek
Summer Holidays
Winter Holidays
Refresh Holidays
Paid Holidays
Sick Leave

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**Backend Developer (English OK)**