掲載日 ・ 2025/08/14
楽天グループ株式会社
楽天グループ株式会社:1024547 Infrastructure Engineer – BSS Frontend Development Section, BSS Development Department (BSDD)
非公開
東京都
会社名
楽天グループ株式会社
会社概要
未来を信じ、より良い明日を創っていく。
イノベーションを通じて、人々と社会をエンパワーメントする。私たちは、そんな想いを大切に世界の人々に喜びと楽しさを届けます。
楽天は、E コマース、FinTech、デジタルコンテンツ、通信など、70 を超えるサービスを展開し、世界10 億以上のユーザーに利用されています。
これら様々なサービスを、楽天会員を中心としたメンバーシップを軸に有機的に結び付け、他にはない独自の「楽天エコシステム」を形成しています。ダイバーシティ推進は、楽天にとって最優先の企業戦略のひとつです。従業員の出身は70カ国・地域以上。世界中からユニークで多様な文化的背景や視点を持つ優秀な人材が集まり、イノベーションの原動力になっています。社内カフェテリアにはベジタリアン、ハラル対応のメニューを用意。礼拝所(Prayer room)もあります。
また、仕事と育児の両立支援や、障がい者雇用・活躍促進も積極的に推進。社内のLGBT(※1)当事者やアライ(※2)に対して、情報共有やサポート体制の強化も進めています。誰もが自分らしく力を最大限発揮して働ける。それが楽天のダイバーシティです。
70を超えるサービスを提供し、世界30カ国にサービス展開拠点を持ち、従業員の出身国・地域数は100を超え、オープンポジション制度を活用して多様なキャリアを描くことができる点も魅力です。
フレックスタイム制度、事情に応じたリモートワークの活用が可能です。本社には託児所やフィットネスジム、三食無料で利用可能なカフェテリアが併設されるなど、社員を支える環境が整備されています。
ポジション
1024547 Infrastructure Engineer - BSS Frontend Development Section, BSS Development Department (BSDD)
仕事内容
Job Description:
Business Overview
The Technology Platforms Division (TPD) is responsible for building and operating the infrastructure and ecosystem platforms which power the Rakuten Group, Inc.
Our mission is to provide our Rakuten Cloud and Ecosystem Platforms which will deliver Core Value to accelerate the growth of Rakuten Group, Inc. services.
Department Overview
Our department, BSS Development Department (BSDD), develops and maintains the BSS platform for MNO, VOICE, and ISP services, and is in charge of development and maintenance of IT infra (on-premise and cloud environment) for BSS platform.
Position:
Position Details
As a hands-on full-stack developer for B2B MNO, you will use your development skills to build applications, by working on requirements (gathering, definition), the entire test plan (functional, operational, failure, load, etc.), risk assessment, release judgement, and reviews (design, test plan, test result). You will also come up with innovative ideas to help the product and the team, in order to improve overall efficiency of the team.
Responsibilities
- Develop software solutions, respond to requests for business requirements, design, coding, testing, and release, as well as maintenance of software programs and applications.
- Collaborate with the team, and other stakeholders to deliver features with quality and speed.
- Take responsibility of the product, perform maintenance, monitoring, identifying issues and problems, troubleshooting and bug-fixing when needed.
- Be proactive in performing system improvement (e.g. refactoring, adopting appropriate technologies and system architecture).
- Grow team members' technical and product development skills, by mentoring.
- Create and maintain technical documentation.
- Help identifying issues or problems occurring in a system, and fixing them.
- Collaborate with Product Managers and Designers ensuring great UI/UX.
- Maintain and oversee code cleanliness by defining guidelines and conducting code reviews.
求める経験・スキル
Mandatory Qualifications:
- Software engineering experience (ideally, 7-10 years).
- Solid understanding of frontend technologies, including JavaScript/React/HTML/CSS.
- Experience with backend frameworks such as Node.js, Spring boot, Ruby on Rails.
- Knowledge of infrastructure technologies, such as Python, Shell, Bash.
- Knowledge of database technologies (e.g., MySQL, MongoDB).
- Experience with container technologies (Docker, Kubernetes).
- Experience with cloud services (GCP, Azure, AWS).
- Excellent problem-solving ability.
Desired Qualifications:
- Experience building CI/CD pipelines.
- Knowledge of security and data protection.
- Business-level Japanese communication skills.