System Operation Maintenance Engineer - Service Operation Department, Product Development Division, Rakuten Payment, Inc.

Rakuten Pay System Engineer

Rakuten Group's basic management philosophy is to "empower people and society through innovation." We provide more than 70 diverse services, including EC services, financial services, and media services, to more than 100 million customers in Japan alone (more than 1 billion globally), covering a wide range of people's life scenes. At the same time, we are building a strong business model based on the "Rakuten Ecosystem" that organically links customers and various services.

As a member of the Rakuten Group's FinTech Group Company, we at Rakuten Payment, Inc. are developing businesses centered on settlement services such as Rakuten Pay, Rakuten Edy, and Point Partner Business, as well as marketing solutions. With the power of technology, we aim to create a world where anyone can enjoy the same value no matter where they are. As the digital sphere of society rapidly expands, we want to connect the Internet and the real world more seamlessly, so that everyone can use technology to lead a safe, secure, and more comfortable daily life. To achieve such a society, we would like to face the various problems that people are facing and move forward together to the next stage.

The Product Development Division handles everything from system service planning related to payment services, planning and implementation related to UI/UX, basic and detailed system design, coding, testing, and operation. As the service expands, you will be able to experience the planning, development, and operation of a very large-scale system. In addition, you will be able to improve our services by directly listening to the voices of our customers.

In recent years, the cashless payment market has rapidly expanded worldwide, and our service "Rakuten Pay" has also been growing its performance domestically. Consequently, the importance of the digital infrastructure as a mission-critical payment platform, including its public utility, sophistication, and convenience, has been increasing day by day. This necessitates the establishment of a dynamic multi-cloud environment and the assurance of stable operation across these services. We are looking for members who can support our business growth through the evaluation and analysis of system resources, enhancement of monitoring, and automation of operational tasks. This position offers the rewarding opportunity to provide a wide range of convenient services to our customers, starting with cashless payments and extending to finance and lifestyle services.

To ensure the Rakuten Pay services work stable so that users and merchants use our service with safe and confident, we will ask you to work as a system engineer to do service operation and to improve service operation and maintenance itself. Service operation means the necessary tasks necessary to maintain service, such as service monitoring, trouble investigation and management, and regular operation. To carry out these operations, it is necessary to collaborate with other departments, such as those in charge of development of back end, mobile, and other services' operations so the position requires a high level of communication skills. In terms of service operations, as you know, regarding Rakuten Pay, its users, its merchants and its services are expanding, we must proceed improvement activities daily basis to keep the expanding our services as payment platform. Naturally some members come from abroad, so you can improve their English communication skills.

Operational and maintenance tasks, including application deployment to production environments (primarily backend), data patching, monitoring, troubleshooting and analysis, system maintenance, and investigating inquiries from customer service and related departments.

Infrastructure work related to the design and construction of system platforms in a cloud environment, including containers, microservices, CI/CD, orchestration, databases, and Java EE.

Evaluate and analyze over- and underutilization of system resources, identify issues, plan and implement improvements, strengthen monitoring, automate operational tasks, and promote system modernization through codification.

Understand non-functional requirements (performance, availability, security, etc.) and propose their reflection in system design and construction.

General organizational management tasks, including organizational management of operations departments, formulating and implementing system operation plans, and formulating and implementing disaster recovery plans based on IT-BCP.

These tasks will require collaboration with backend and mobile developers, external vendors, maintenance and operation staff for other services, and other departments, so strong communication skills are required. Additionally, as some members will be foreign nationals, English communication skills may be required. After hiring, assignments will be determined based on experience and aptitude, while also taking into account the individual's preferences. This position allows you to acquire high-level design and operational skills through work on advanced technologies. We welcome applications from a wide range of backgrounds.

The average age across the group is in the mid-30s, with approximately 55 members. More than half of the employees are mid-career hires, mainly from system vendors and user companies of web services.

Mandatory Qualifications:

• 3+ years of experience in system operation and maintenance of web applications, APIs, databases, or related systems
• Experience in operating and maintaining systems in cloud environments such as AWS, Azure, and GCP
• Experience building and operating CI/CD pipelines in a Kubernetes environment
• Experience monitoring system availability, responding to alerts, reviewing metrics and logs, with an understanding of performance indicators
• Experience with version control using Git
• Experience in streamlining operational tasks through automation of routine tasks, CI/CD implementation, and configuration management
• Experience building infrastructure as code (IaC) using tools such as Terraform and CloudFormation
• Japanese (Native level)
• English (Business Level)

Desired Qualifications:

• Experience in designing and developing with production environments in mind (e.g., deployment strategies, rollback strategy development, monitoring design)
• Experience in the operation and maintenance of mission-critical services requiring high availability
• Domain knowledge related to Fintech (primarily payments)
• Experience using Atlassian collaboration tools (e.g., JIRA, Confluence)
• Advanced knowledge and experience with RDBMS (e.g., SQL performance tuning, database cluster construction and operation)
• Experience designing and building monitoring systems (e.g., using Prometheus, Grafana, and Elastic for metrics/log data analysis and visualization, anomaly detection, and performance improvement)
• Experience in handling large-scale incidents, performing root cause analysis, and implementing preventive measures
• Team management experience (or project management experience)

Additional information on Location:

NBF Shinagawa Tower

Additional information on Secondment:

You will be transferred from Rakuten Group, Inc. to Rakuten Payment, Inc.