DevOps Engineer - EC Expansion Development Department (ECEXD)

Job Description: Department Overview The EC Expansion Development Department is guided by a mindset of building a lean and efficient organization, and delivers products and systems that continuously strengthen and expand e-commerce. In a fast-changing business environment, we actively leverage AI and other advanced technologies to deliver value at speed, growing as a team through ongoing challenges and continuous improvement. Among these, the Marketplace Expansion Development Section develops and operates services such as the J.League Online Store, Furusato Nozei (Hometown Tax), Rakken, and RAXY. Additionally, the team is responsible for launching new EC-related services with the goal of expanding and growing Rakuten's marketplace. This is a highly challenging department where you can gain unique and valuable experiences that are distinct to Rakuten. Position: Why We Hire We are seeking a highly skilled DevOps Engineer dedicated to Google Cloud Platform (GCP) environment. In this position, you will be responsible for designing, automating, and managing cloud-native infrastructure, as well as optimizing the software delivery process. Working with a diverse global team, you will ensure the operation of highly available, scalable, and secure applications on GCP. Position Details - Proposing solutions aligned with business requirements, and designing and implementing scalable GCP infrastructure and automated CI/CD pipelines. - Refining, improving, and optimizing existing software delivery processes and cloud environments to eliminate bottlenecks. - Actively proposing new best practices and innovative ideas to evolve our engineering standards and cloud-native technologies. - Effectively collaborating and sharing knowledge with developers, QA, and management across a multicultural and diverse team. - Providing support for inquiries, system monitoring, and troubleshooting related to GCP infrastructure, microservices, and event-driven architecture as needed. Work Environment In our group, engineers with various background from all over the world are working as one team. Development Environment Google Cloud Platform (GCP), Docker, Google Kubernetes Engine, Terraform, Terragrunt, GitHub, Python, Kafka, Go, Google Cloud Pub/Sub, Databases (NoSQL) Mandatory Qualifications: Core Technical & Cloud Requirements - Over 5 years of experience as a DevOps Engineer, with a strong emphasis on cloud-native architectures. - Over 3 years of software development experience (e.g., Python, Go, Java, Bash, or Node.js). - Microservices & Event-Driven Architecture: Proven experience designing, deploying, and supporting distributed microservices and event-driven architectures (utilizing event-streaming services like Google Cloud Pub/Sub or Eventarc). - Strong GCP Expertise: Proven, hands-on experience provisioning and managing core GCP services (e.g., Google Kubernetes Engine (GKE), Cloud Run, Compute Engine, VPC, Cloud IAM). - GCP-Native CI/CD & Delivery: Deep experience designing and managing CI/CD pipelines using Google Cloud Build, Google Cloud Deploy, and Artifact Registry. Experience with modern GitOps workflows (e.g., GitHub Actions, GitLab CI, or ArgoCD) is highly valued. - Infrastructure as Code (IaC): Extensive experience automating cloud infrastructure using Terraform. - Containers & Orchestration: Strong expertise in containerization (Docker) and orchestration, specifically within GKE and serverless environments like Cloud Run. - Strong analytical skills to identify and resolve bottlenecks in the software delivery process. - Expert-level Linux System Knowledge: Deep understanding of Linux internals (kernel tuning, system calls, memory management, file systems). Proven ability in advanced performance tuning and low-level (OS/kernel layer) troubleshooting. - Advanced Networking Knowledge (Foundational & Cloud): Specialized understanding of the OSI model and network protocols (TCP/IP, BGP, DNS, TLS/SSL, HTTP/3). Demonstrated experience in designing complex architectures, including Shared VPCs, Cloud Interconnect, and Global Load Balancing. - Comprehensive Cybersecurity: Deep knowledge of general cybersecurity principles (Zero Trust, PKI, OAuth2, OIDC). Practical experience in infrastructure hardening, implementing least-privilege IAM models in large-scale environments, and automated security scanning. - Large-Scale Incident Leadership: Proven track record of leading responses to critical incidents in large-scale environments. Advanced Root Cause Analysis (RCA) capabilities for failures in complex distributed systems. - Advanced Logic and Troubleshooting: Exceptional logical thinking skills to identify patterns in distributed systems and automate complex workflows. Operational experience in managing large-scale environments and multi-region deployments. Soft Skills & Team Collaboration - Highly Collaborative Team Player: A strong commitment to achieving team goals, with a proven ability to work seamlessly and supportively within a group. - Proactive Innovator: A continuous improvement mindset with the initiative to suggest new best practices, bring fresh, innovative ideas to the table, and actively contribute to evolving our engineering standards. - Excellent communication skills and the mindset to collaborate with various stakeholders (developers, QA, management) to improve the organization's software delivery process. - At least 1 year of experience working collaboratively with members from diverse cultural backgrounds and actively contributing to the team. - A bachelor's degree in computer science or equivalent practical knowledge. Desired Qualifications: - GCP Certifications: Google Cloud Professional DevOps Engineer, Professional Cloud Architect, or Professional Cloud Security Engineer. - Observability & SRE: Experience with cloud monitoring, alerting, and logging using Google Cloud Observability (formerly Stackdriver). - Advanced Messaging: Deep, hands-on server maintenance and tuning experience with Kafka on GCP computer instances. - Database Management: Experience with GCP-native NoSQL databases such as Cloud Bigtable or Firestore (experience with Cassandra is also applicable). - DevSecOps: Experience integrating security into pipelines, using tools like Google Cloud Secret Manager, Binary Authorization, and Container Analysis. - Experience working in multicultural and multigenerational teams. Other Information: Additional information on Location Rakuten Crimson House (Head office) Additional information on English Qualification TOEIC Score exceeding 800 (or similar level of English ability) or a University Degree earned in an English-speaking country. Proof of qualifications will be required by the time of the job offer. If no evidence is available to prove the qualifications denoted above, taking an IP test, organized by Rakuten, during selection process is required. #engineer #infrastructureengineer #commerce #Python Languages: English (Overall - 3 - Advanced), Japanese (Overall - 4 - Fluent) In Japanese, Rakuten stands for 'optimism.' It means we believe in the future. It's an understanding that, with the right mind-set, we can make the future better by what we do today. So we challenge ourselves to evolve, innovate and experiment, to create a better, brighter future for everyone. Today, our 70+ businesses span e-commerce, digital content, communications and fintech, bringing the joy of discovery to almost 1.3 billion members across the world. If you have any trouble logging in, please contact us here Rakuten Group, Inc.: rakuten-recruiting-info@mail.rakuten.com - Information not related to business, such as ideological beliefs, family structure, etc. * For legal compliance, we may ask you about your work eligibility. See the details