Application Engineer - System Division Supervisory Department, System Division, Rakuten Card Co., Ltd.

Job Description: Business Overview Credit cards, electronic money, and web/app-based payment systems have become an inseparable part of our lives. Rakuten Card boasts over 30 million cards issued and has achieved the No.1 credit card shopping transaction volume in Japan (based on self-issued cards)*1. Even as an industry leader, we continue to grow without slowing down, aiming for the ambitious goal of "Triple 3" (30 million credit cards issued, 30 trillion yen in shopping transaction volume, and 30% market share in the card industry). Department Overview The Vendor Management Group strategically leverages external specialized resources to build an efficient and robust business structure that allows our company to focus on core business. This group plays a crucial role in ensuring optimal IT investment and securing high-quality IT services and products through vendor negotiations, purchasing, and procurement operations. Furthermore, based on our business needs, we support optimal investment decisions for business SaaS applications and their implementation and utilization. Through these operations, various projects are launched, providing a practical environment where you can experience everything from planning and launch to execution and operation. Position: Why We Hire We are currently recruiting members to join our newly established team for new service development as an application engineer. We are looking for individuals who can contribute to the further development of Rakuten Card services by handling the design, construction, maintenance, and operation of mission-critical payment service applications on AWS. Position Details - Hearing business requirements - Application requirements definition, design, construction, and operation - Application troubleshooting - Construction, improvement, and maintenance of CI/CD processes Mandatory Qualifications: - Web application development experience (3 years): Development experience with web applications using Java/HelidonMP. - Experience in building and operating applications in cloud environments (this team uses AWS) - Development experience using RDBMS or NoSQL databases: Particularly application development experience using Dynamo and DSQL, and SQL knowledge. - Experience using CI/CD pipelines: Development process experience utilizing CI/CD pipelines such as GitHub Actions. Experience with test automation, etc. - Experience in troubleshooting applications in production environments Desired Qualifications: - Development experience with microservice architecture: Knowledge and practical experience regarding design philosophy, challenges, and solutions in distributed systems. - Development experience using container technology: Application development and operation experience using container technologies such as Docker and Kubernetes. - API design and development experience: Experience in designing, developing, and operating APIs such as RESTful API and GraphQL. - Test-driven development (TDD) or equivalent test implementation experience: Experience in designing and implementing unit tests, integration tests, E2E tests, etc. - Performance tuning experience: Track record of identifying application bottlenecks and improving performance. - Development knowledge regarding security: Knowledge of web application security such as OWASP Top 10 and practical experience in secure coding. - Experience in system monitoring and log analysis: Experience in application monitoring setup and log analysis using CloudWatch, Prometheus, Grafana, Datadog, etc. - Agile development experience such as Scrum: Team development experience with agile development methodologies (Scrum, Kanban, etc.). - System development experience in the financial industry: Knowledge of specific requirements and regulations related to systems in the financial sector, such as payment services. - English communication skills: English proficiency at a level that enables reading technical documentation and communicating with overseas vendors and global teams. Others Information: Additional information on Location Tokyo (Rakuten Crimson House Aoyama), Fukuoka Office (Hakata) Additional information on Secondment You will be employed by Rakuten Group, Inc. and seconded to Rakuten Card Co., Ltd. *For more details, please refer to the following pages. ----------------------------------- ▼About Company ・History of the Rakuten Brand ・Rakuten Group as a Global Company ・Giving Back to Society ▼ Latest Company News ・Press Release ・Investor Relations ▼ Video Links ・Other Rakuten Group Activities ▼ Conditions of Employment ・Rakuten Group Employee Benefits ----------------------------------- #エンジニア職 #engineer #アプリケーションエンジニア #applicationsengineer #フィンテックグループカンパニー #fintechgroup #楽天カード #RakutenCard Languages: Japanese (Overall - 3 - Advanced) 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 *Please read the Application Requirements(EN) / 募集要項(JP) before applying. Our Diversity & Inclusion Policy and Application Documents Rakuten’s corporate mission is to “contribute to society by creating value through innovation and entrepreneurship.” We foster a culture that provides equal opportunities to those who share this founding philosophy and take on the challenge to transform society, regardless of age, gender, nationality, or any other status. Diversity is one of Rakuten's core strategies and a driving force for innovation. Because of this, you are not required to submit any of the following information in order to apply for our job positions. - Gender - Age - Photo - Nationality* - 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