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

1033575　Cloud Architect - CCoE Section, Cloud Platform Enablement Department (CPED)

仕事内容

Position Details
As a technical lead within the CCoE, you will play a broad role spanning from defining the organization-wide architecture strategy across multi-cloud environments (AWS, Azure, GCP, OCI) to establishing and driving technical standards. 

Key Responsibilities
1. Multi-Cloud Architecture Design & Standardization 
- Provide upper-level architecture reviews for service teams across multi-cloud environments 
- Define reference architectures for Landing Zones, account structures, and network design (VPCs, VPNs, Dedicated Interconnect, Cloud to Cloud Connectivity, hub-and-spoke, etc.) 
- Conduct architecture reviews based on the Well-Architected Framework for AWS, Azure, GCP, and OCI 
- Provide technical consulting on cloud migration and modernization plans for each Business Unit (BU) 

2. Governance & Security Architecture 
- Design, implement, and continuously improve the multi-cloud governance framework
- Architect security guardrails and compliance policies (IAM, network controls, encryption, audit logging, etc.) 
- Support the cloud-side implementation of Zero Trust Architecture and CSPM in collaboration with the dedicated security team 
- Collaborate with security and legal teams on risk assessment and remediation design 

3. Governance & Security 
- Provide technical leadership for CCoE roadmap initiatives (Security Guardrails, Landing Zone, etc.) 
- Drive codification and standardization of infrastructure architecture using IaC tools such as Terraform 
- Provide architecture guidance on container platforms (Kubernetes), serverless, and managed service adoption 
- Standardize Disaster Recovery (DR), High Availability (HA), and scalability design 

4. Cost Optimization (FinOps) 
- Define FinOps strategy and design cost optimization architecture 
- Design cost allocation, tagging standards, and cost visibility mechanisms across multiple clouds 
- Recommend optimization of Reserved Instances, Savings Plans, and Committed Use Discounts 
- Drive architectural improvements to reduce data egress costs 

5. Technical Leadership & Enablement 
- Provide technical mentoring and architecture reviews for Cloud CoE engineers 
- Operate an Architecture Review Board for internal cloud users 
- Create and promote cloud architecture best practices and design guidelines across the organization 
- Research and evaluate new technologies and services, and assess their integration into existing architecture 
- Develop and create e-Learning content 

6. Vendor Management & External Collaboration 
- Serve as the primary technical point of contact for cloud vendors (AWS, GCP, Azure, OCI) and build strong vendor relationships 
- Evaluate new vendor services and roadmaps and determine their applicability for internal adoption 
- Collaborate with Co-CCoE organizations (equivalent CCoE teams in other groups/departments) to align architecture standards 
- Work with external partners on cross-group cloud strategy and governance initiatives 

求める経験・スキル

Mandatory Qualifications:
- Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent practical experience 
- More than 5 years of hands-on experience designing, building, and operating cloud infrastructure on AWS, Azure, or GCP 
- Experience leading upper-level architecture design on at least one cloud platform (GCP, AWS, or Azure); willingness to learn additional cloud platforms is acceptable 
- Hands-on experience with Landing Zone and network design (VPC, VPN, hub-and-spoke, multi-region) 
- Practical experience designing and implementing infrastructure using IaC tools such as Terraform 
- Experience designing and implementing cloud IAM and security guardrails 
- Professional-level or Specialty/Expert architect certification from AWS, Azure, GCP, or OCI (e.g., AWS Solutions Architect Professional, GCP Professional Cloud Architect, Azure Solutions Architect Expert, OCI Architect Professional) 
- Strong communication skills, including the ability to explain technical concepts to non-technical stakeholders 
- Business-level English and Japanese communication skills 

Desired Qualifications:
- Experience designing multi-cloud architectures (2 or more providers) 
- Experience presenting and driving cloud strategy to executives and non-technical stakeholders 
- Experience designing Kubernetes and container platform architectures 
- Experience implementing Zero Trust Architecture and CSPM 
- Hands-on FinOps experience (cost allocation design, tagging standardization, cost optimization) 
- Experience with GCP Dedicated Interconnect and Shared VPC design, implementation, and operations 
- Hands-on experience with OCI (Oracle Cloud Infrastructure) 
- Experience operating an Architecture Review Board 
- Practical experience with DevSecOps and GitOps 
- Experience developing and creating e-learning content 
- Experience in technical negotiations and relationship building with multiple cloud vendors