AirTA

Senior Backend Developer, Rakuten Ichiba - Mall Section No.2, EC Marketplace Development Department(ECMPD)

取得日 2026年7月27日・最終確認 2026年10月16日

募集要項

記載なし

東京都

フルタイム

記載なし

この求人に記載のない項目:給与、企業の電話番号

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Job Description

Department Overview

EC Marketplace Development Department (ECMPD) is a tech division under Rakuten Commerce & Marketing Company of Rakuten Group, Inc. We are responsible for developing and enhancing our online system to support our core business, Rakuten Ichiba.

Rakuten Ichiba is one of the largest internet shopping malls in Japan with 5.6 trillion sales in 2022 and our business is growing year on year. We aim to provide the best shopping entertainment for our shoppers and empower our partners in Rakuten Ichiba.

Position:

Why We Hire

While this service is growing steadily, we need a more robust and scalable system to drive further growth. We are also committed to providing the best user experience possible. This requires a stronger team and higher engineering skills, and we need more Backend engineers to work with us as part of our development team.

Position Details

  • Define requirements, design, programming, testing, and deployment to deliver the system.
  • Collaborate with PDM, internal members, and upstream/downstream system teams.
  • Monitor system stability and performance, optimize performance, design and maintain system architectures, refactoring, optimization, and troubleshooting.

Mandatory Qualifications

  • Development and Operation experience of web system
  • Development experience of Java with frameworks (Spring Framework, Play Framework) for more than 5 years
  • Experience of Unit test with Junit
  • Experience of front end technologies (HTML, CSS, Javascript)
  • Experience of design and development with design pattern
  • Development experience with RESTful API and GraphQL
  • Experience of RDMS for more than 3 years
  • Experience of version control tools like Git or SVN
  • Knowledge of Web securities
  • +1 year experience of web servers (Apache, nginx etc.)
  • +1 year experience of Unix/Linux
  • Documentation skills, including design documents and test cases
  • Communication skill in English

Desired Qualifications

  • Knowledge of Container architecture (Docker, Kubernetes)
  • Development experience with Caching/NoSQL technologies (Redis, kafka, MQ, memcache)
  • Knowledge of CI/CD and DevOps (Jenkins, CircleCI)
  • Experience of stress test or performance test
  • Knowledge of system scalability and sustainability
  • Experience of system operations

Others Information:

Additional information on English Qualification

TOEIC Score 800 or above

#engineer #applicationsengineer #commerce #RakutenIchiba

Languages:

English (Overall - 4 - Fluent)

語学要件

日常的に英語を使用

企業情報

Rakuten Group

楽天グループ株式会社

本社所在地:東京都

インターネット・EC金融・フィンテック

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