Backend Developer, Rakuten Ichiba - R-Backoffice Section, EC Marketplace Development Department (ECMPD)

Job Description: Department Overview EC Marketplace Development Department (ECMPD) is a tech division under Rakuten Commerce & Marketing Company of Rakuten Group, Inc. We are responsible for developing and enhancing our online system to support our core business, Rakuten Ichiba. Rakuten Ichiba is one of the largest internet shopping malls in Japan with 5.6 trillion sales in 2022 and our business is growing year on year. We aim to provide the best shopping entertainment for our shoppers and empower our partners in Rakuten Ichiba. Position: Why We Hire While this service is growing steadily, we need a more robust and scalable system to drive further growth. We are also committed to providing the best user experience possible. This requires a stronger team and higher engineering skills, and we need more Backend engineers to work with us as part of our development team. 　 Position Details - Define requirements, design, programming, testing, and deployment to deliver the system - Collaborate with PDM, internal members, and upstream/downstream system teams - Monitor system stability and performance, optimize performance, design and maintain system architectures, refactoring, optimization, and troubleshooting 　　 Mandatory Qualifications: - 5 years of experience in Java/Spring Boot web application development (both Web and Batch) - 5 years of experience in designing and developing REST APIs, with strong proficiency in JUnit testing and code reviews - Experience in operating large-scale online systems and handling incident response - Experience with relational databases (Oracle or MySQL) - Hands-on experience using Tomcat or WebLogic - Experience in Git, Linux, and Gradle - Experience with CI/CD using Jenkins or other similar tools - Knowledge and practical experience in container architectures such as Docker and Kubernetes, applied in system development 　 Desired Qualifications: - English communication skills - Experience in leading design to consider overall system scalability and maintainability, and strategically guiding the future vision of services (user base expansion, new feature integration) - Experience in conducting Performance/Load/Stress Tests, etc. - Experience with Redis, Kafka, Elasticsearch, Grafana, and Kibana - 3+ years of experience in PHP Application development using any framework - Experience in environment setup using Kubernetes - Kubernetes certification (CKA or CKAD) obtained 　 Other Information: Additional information on English Qualification TOEIC Score 800 above or possess equivalent abilities #engineer #applicationsengineer #commerce #RakutenIchiba Languages: English (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 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