楽天グループ株式会社：1028229 Cloud Engineer – Recommendation Department, AI & Data Division

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

1028229 Cloud Engineer - Recommendation Department, AI & Data Division

仕事内容

Job Description:
Department Overview Rakuten is seeking a skilled and experienced Cloud Engineer to join our dynamic Recommendations and Personalization team in Tokyo. You will be an integral part of an international team leveraging cutting-edge AI and machine learning to deliver personalized experiences across all Rakuten services. This role offers the exciting opportunity to collaborate closely with engineers and data scientists, with a primary focus on the development and optimization of our core web applications, ensuring the highest quality and performance of our cloud-native platforms.

Position:
Position Details
As a Cloud Engineer, your main responsibility will be to contribute directly to the backend development of our web applications. You will also play a crucial role in ensuring these applications are effectively deployed, optimized, and maintained within Google Cloud Platform (GCP), applying DevOps best practices to streamline our processes, enhance system reliability, and scale our services to meet global demand.

Key Responsibilities - Lead and contribute significantly to the design, development, and optimization of core backend web application services, primarily in Python. - Architect, implement, and maintain scalable, highly available, and fault-tolerant cloud infrastructure on Google Cloud Platform (GCP) to support our applications. - Apply DevOps principles to automate application deployment (CI/CD) and manage infrastructure on GCP. - Deploy and optimize web applications within the GCP ecosystem. - Implement and manage robust monitoring, logging, and alerting solutions to ensure application health and performance. - Troubleshoot and resolve complex application and infrastructure issues in a production environment. - Identify and advocate for new cloud technologies and best practices to continually improve our platform's efficiency, cost-effectiveness, and reliability.

求める経験・スキル

Mandatory Qualifications:
- Bachelor's or Master's degree in Computer Science, Computer Engineering, or a related technical field.
- Proven experience contributing to the development of backend web applications, preferably with Python.
- 3+ years of hands-on experience with Google Cloud Platform (GCP), including familiarity with services like Compute Engine, GKE (Google Kubernetes Engine), Cloud Storage, Cloud SQL, Cloud Pub/Sub, Cloud Functions, etc.
- Knowledge and experience with DevOps methodologies and tools for web applications, including CI/CD pipelines (e.g., Jenkins, GitLab CI/CD, Cloud Build), and infrastructure as code (e.g., Terraform).
- Experience with containerization technologies (e.g., Docker) and orchestration platforms (e.g., Kubernetes).
- Solid understanding of Linux operating systems and shell scripting.
- Experience with monitoring and logging tools (e.g., Prometheus, Grafana, Stackdriver/Cloud Monitoring, ELK stack).
- Familiarity with distributed systems, microservices architecture, and high-availability design patterns.
- Strong grasp of good development practices: code reviews, unit testing, continuous integration/delivery.
- 5+ years of overall experience in building and delivering production-grade services.
- Business-level communication skills in English.

Desired Qualifications:
- GCP Professional Cloud Engineer certification.
- Familiarity with NoSQL databases (e.g., Couchbase, Cassandra, Redis).
- Contributions to open-source projects.
- A strong interest in data analytics, machine learning, and personalization systems.