楽天グループ株式会社：1028327 Tech Lead (Fullstack), Point Monetize Dev Group – Incentive Platform Department (INPD)

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

1028327 Tech Lead (Fullstack), Point Monetize Dev Group – Incentive Platform Department (INPD)

仕事内容

Department Overview:
Incentive Platform Department (INPD) is responsible for developing and operating the Rakuten Point and Rakuten Coupon. We develop and manage Rakuten PointClub and other point related web products, which are among the most popular sites in Rakuten. We will drive the improvement to maximize Rakuten Point value and contribute to the Rakuten Ecosystem. By the time you finish reading this, hundreds of thousands of points transactions have been processed and many users visit our web/app service. We want to work with a person who has a great passion for our services and products.

Position:
Why We Hire We are seeking a highly skilled and experienced fullstack engineer for web front and backend development to drive the successful launch of new services. This role will primarily focus on backend development, demonstrating strong technical prowess and leadership to guide the development team. You will be instrumental in maximizing product quality and reliability through robust system design, high-quality code creation, establishing efficient development processes, and providing technical guidance to team members.

Position Details System Design & Development Leadership
- Lead the API design and backend system development for new services - Design and implement system capacity, ensure data integrity, and integrate with the other system
- Design resilient systems that anticipate failures, including log design and recovery mechanisms for communication interruptions
- Autonomously set up development environments and establish efficient development processes
- Create and review high-quality, maintainable, and extensible code, considering performance, test coverage, and production operations
- Operations & Improvement

Operate container-based web systems
- Design logs for efficient troubleshooting
- Develop and operate systems related to Relational Databases (RDBs)
- Utilize and propose improvements for CI/CD pipelines
- Practice best practices for production environment releases
- Production support (on-call)
- Troubleshooting of service in the trouble

Team Management & Technical Mentoring
- Manage a development team of approximately 3-4 members
- Review team members' deliverables and maintain/improve consistent quality standards
- Provide accurate technical guidance and mentoring to improve overall team development quality and productivity
- Support frontend output review and contribute to future maintenance/development of frontend systems.

Project Management
- Collaborate closely with Product Managers (PJM) to deliver high-quality products on schedule
- Appropriately adjust development scope through negotiations with Product Managers (PDM) and the business side, and formulate feasible plans.

求める経験・スキル

Mandatory Qualifications:
- 8+ years’ experience in Java development
- 3+ years’ experience in leading a development team
- Experience in web service backend development (designing and developing APIs from scratch)
- Ability to write high-quality code considering performance, test coverage, and production operations
- Capability to design robust systems that anticipate failures (including knowledge of log design and recovery mechanisms)
- Ability to independently set up development environments and establish efficient development processes
- Experience in providing technical guidance to team members
- Experience operating container-based web systems
- Experience operating systems on Private/Public Cloud with an understanding of basic network mechanisms
- Experience utilizing CI/CD pipelines
- Ability to design logs for efficient troubleshooting, and development/operations experience related to RDBs
- Understanding and ability to explain common best practices for production environment releases
- Experience managing small teams (3-4 members)
- Ability to assure the quality of team members' deliverables (maintaining/improving quality through reviews)
- Ability to adjust development scope through negotiation and formulate feasible development plans

Desired Qualifications:
- Full-stack development experience, especially in frontend development (able to contribute to reviews, maintenance, and development)
- Experience in designing backend system capacity and ensuring data integrity for high-traffic systems
- Experience integrating with other system or similar payment systems
- Knowledge and experience in performance tuning
- Knowledge of modern frontend technologies (e.g., Angular, React)
- MS or Ph.D in Computer Science or related technical discipline
- Experience in Kotlin development
- Experience for CI/CD and test automation
- Experience for application deploy and operation (on-premises and usage of a Public cloud)
- Good communication & collaborative mindset to promote discussion and development with the engineering team
- Experience in working with cross-cultural global teams in different locations
- Japanese skills: Basic reading and writing