掲載日 ・ 2026/09/09
楽天グループ株式会社
楽天グループ株式会社:1035793 Senior Site Reliability Engineer, Booking Services Search Group – Search Department (SED)
非公開
東京都
楽天グループ
インターネットサービス(EC、メディア、アプリ)
クラウドエンジニア
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
1035793 Senior Site Reliability Engineer, Booking Services Search Group - Search Department (SED)
仕事内容
Job Description:
Business Overview
Rakuten is one of the biggest marketplaces of Japan and is the largest internet ecosystem with a wide range of services ranging from e-Commerce, Travel, Banking, Fintech, Food Delivery, Golf, Insurance, Instant Messaging, Mobile Network etc. Rakuten has over 140 services globally. Our mission is to empower people and society through the internet while aiming at becoming the Global Innovation Company.
Department Overview
Search Department (SED) is part of the AI Engineering Supervisory Department (AIESD) under AI & Data Division (AIDD) in Rakuten. Search Department focuses on Search, Discovery, and Navigation experience for users of Rakuten. We in Search Department help demand meet supply through our services that are engineered for scale, performance, and ease of use. We support 20 plus Rakuten Businesses across three different continents, 50 plus user functions and over a billion active users annually generating over two Billion dollars in revenue directly from us. The Booking Service Search group is responsible for delivering mission critical Rakuten Travel and Leisure businesses.
Position:
Why We Hire
We are responsible for the reliability of large-scale distributed Search platform that empower one of the biggest e-commerce of Japan and enables Rakuten ecosystem services worldwide. Rakuten Search Department is constantly striving to challenge what existing search technologies can do and going beyond. We are looking for a highly motivated site reliability engineer with commitment to customer satisfaction and a strong desire to create highest-quality Search platform for Rakuten Services.
Position Details
Responsibilities (includes but are not limited to):
- Take part in the design and deployment of production environment for new clients, from hardware to service level
- Actively monitor production system, including on-call
- Quickly react to issues, report, triage, troubleshoot and assist peers
- Handle operations like Production releases, including nighttime operations
- Drive continuous improvement of our tooling and automation stacks through innovation and collaboration
- Collaborate with product managers, software engineers, and quality assurance teams to identify testing requirements, design and conduct relevant plans (including performance, security, fire drills)
求める経験・スキル
Mandatory Qualifications:
- More than 8 years of work experience working in IT
- Excellent problem solving and troubleshooting skills
- Excellent teamwork and communication skills
- Strong Linux experience with understanding of system performance and reliability
- Experience analyzing and tuning performance of distributed systems
- Experience deploying and using configuration management tools (e.g., Chef, Ansible)
- Experience with observability tools (e.g., Prometheus, Grafana, Loki)
- Experience with container technologies and orchestration (Kubernetes)
- Experience automating tasks using shell scripts and/or Python
- Strong understanding of computer networking and common protocols
- Experience managing services built with Java
Desired Qualifications:
- Experience automating processes for software testing and deployment (Jenkins)
- Experience working with Spark, Solr, Cassandra, or Kafka
- Experience with cloud storage solutions (Ceph, S3, MinIO)
- Experience working with a Git-based workflow
- Software development experience
Other Information:
Additional information on English Qualification
English (Overall - 3 - Advanced)