DevOps Engineer, Rakuten Data Management Platform - Global Ad Technology Supervisory Department (GATD)

Location: Tokyo, Japan

Time Type: Full time

Job Description

Job Description:

Business Overview

Rakuten Group is based in Japan and serves approximately 100 million customers in Japan and over 1 billion globally. We provide more than 70 services in a variety of sectors, including e-commerce, payment services, financial services, telecommunications, media, and sports.
 

Department Overview

Global Ad Technology Supervisory Department (GATD) manages the advertising systems that power Rakuten. We are a cross-functional and data-driven organization working in a diverse team spread across Japan, China, Singapore, and India. Our vision is to empower our internal and external stakeholders by providing data-driven marketing solutions through the development of Ad delivery, Tracking, Reporting, and Data Sync Platforms. Joining us, you will challenge yourself with a wide range of technologies at the frontline of heavy-traffic, large-scale ad applications.

GATD Website: https://corp.rakuten.co.jp/careers/feature/adtech/en/

Position:

Why We Hire

To support the rapid growth of our Rakuten Data Management Platform (RDMP) and related services, we are expanding our DevOps team. We are looking for a proactive engineer to strengthen our platform reliability, accelerate delivery pipelines, and drive cloud-native automation, including the integration of modern AI-driven workflows to streamline operational efficiency.

Position Details

Responsibilities

- Cloud Infrastructure Management: Administer and optimize GCP infrastructure (Cloud Run, BigQuery, GCS, Pub/Sub, Cloud Build).

- Hybrid Networking: Manage network configurations, load balancers, and VPN/Interconnect connections between on-premise and GCP environments.

- CI/CD & Deployment: Own the design and maintenance of CI/CD pipelines (Jenkins-as-a-Service) supporting Maven, Node.js, and Docker; implement automated deployment strategies (canary, blue-green).

- Observability & Cost Management: Implement comprehensive monitoring (Prometheus, Grafana, ELK/EaaS) and proactively manage cloud resource utilization and cost optimization.

- Infrastructure as Code (IaC): Drive automation through Terraform and Ansible to reduce manual operations.

- Security & Compliance: Manage secrets (Vault/GCP Secret Manager) and ensure security best practices across the hybrid infrastructure.

Work Environment 

- Team Dynamics: We operate as an Agile, fast-paced team with no barriers. We are very open to new ideas and continuous process improvements.

- Collaboration: Our core team is based in Japan and China, with frequent interaction with teams in Singapore and India. We pride ourselves on being a highly diverse, international, and inclusive group.

Development Environment

- Cloud: Google Cloud Platform (GCP), Private Cloud (Rakuten Cloud).

- CI/CD: Jenkins, Octopus Deploy, GitHub Actions, Harbor, Artifactory.

- AI/Automation: n8n, Python/LLM-based automation frameworks.

- Infrastructure/IaC: Terraform, Ansible, Kubernetes, Docker.

- Observability: Prometheus, Grafana, ELK Stack.

- Collaboration: Jira, Confluence, Slack/Teams, Bitbucket, GitHub Enterprise.

Mandatory Qualifications:

- More than 3 years of experience in DevOps, SRE, or Infrastructure Engineering.

- Strong hands-on experience with GCP (Cloud Run, BigQuery, IAM, VPC, Networking).

- Deep understanding of CI/CD pipelines and automated deployment orchestration.

- Proficiency in Infrastructure as Code (e.g., Terraform) and scripting (Bash/Python).

- Experience in managing production-grade Kubernetes/containerized environments.

- TOEIC Score 800 above or possess equivalent qualifications.

Desired Qualifications:

- Experience building AI-powered automation or agentic workflows (e.g., n8n, automated ticketing/remediation).

- Experience managing GCP Interconnect and complex hybrid network topologies.

- Proven track record in cloud cost management and resource optimization.

- Knowledge of Kafka, Redis, MariaDB, or Couchbase.

- Experience with workflow schedulers (e.g., Azkaban).

- Professional certification (Google Professional Cloud Architect/DevOps Engineer or similar).

Other Information:

Additional information on Location

Futako Tamagawa Rise Office

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