Backend Developer, Rakuten Ichiba - R-Backoffice Section, EC Marketplace Development Department (ECMPD)
Core
Design, develop, and maintain scalable backend systems for Rakuten Ichiba, one of Japan's largest e-commerce marketplaces.
Role type
Senior Backend Engineer (Java/Spring Boot)
Builds
Robust and scalable online systems for Rakuten Ichiba
Domain
E-commerce / Retail
Deliverable
production ML models | product features | infrastructure
Required skills
Java, Spring Boot, REST API design, JUnit testing, relational databases (Oracle/MySQL), Tomcat, WebLogic, Git, Linux, Gradle, CI/CD (Jenkins), Docker, Kubernetes
Preferred skills
System scalability design, performance/load/stress testing, Redis, Kafka, Elasticsearch, Grafana, Kibana, PHP application development, Kubernetes certification (CKA/CKAD)
Technologies
Java, Spring Boot, Oracle, MySQL, Tomcat, WebLogic, Git, Linux, Gradle, Jenkins, Docker, Kubernetes, Redis, Kafka, Elasticsearch, Grafana, Kibana, PHP
Responsibilities
Define requirements, design, program, test, and deploy systems; collaborate with product and system teams; monitor system stability and optimize performance; handle incident response and troubleshooting.
Seniority
Senior, hands-on IC