Job Description:Business OverviewWhen you see the word "Rakuten", you probably have an image of many e-commerce-related services such as "Rakuten Ichiba", "Rakuten Books", and "Rakuten Fashion". If you order items from these services, it is commonplace every day that the items will be delivered to your home. So, where and how are these items managed, how are they boxed, shipped, and delivered to your home? In fact, these parts that you cannot directly see are the scope of responsibility of EC Logistics Development Department, which we are in charge of. Department OverviewWe operate a number of warehouses in Japan where we store and manage Rakuten Books, Rakuten Fashion, and Rakuten 24 items, and perform tasks such as receiving and shipping. In addition, we have developed a service called "Rakuten Super Logistics" and receive items from merchants in Rakuten Ichiba, and we also do item-related work on behalf of them. What is necessary for the series of operations in this warehouse is the system developed by the EC Logistics Development Department. If our system stops, items purchased through e-commerce will not be delivered, and the only direct contact with customers is "logistics (delivery)". Logistics has a strong impression of being behind the scenes, but it plays such an important role. In addition, while managing these systems close to the "site (warehouse)", the control of the "estimated delivery date" displayed on Rakuten Ichiba, the "delivery status display" from the purchase history on Rakuten Ichiba, and the "delivery related notification" are also part of the system that our department is in charge of. In this way, we, the EC Logistics Development Department, develop and operate the "logistics" that support the Rakuten Group and the "systems" that support it in general. ECLD's Mission:We contribute to the growth of our stakeholders by leveraging our expertise and systems.Contributing to the advancement of our stakeholders is both a joy for ECLD and a way to demonstrate our organizational value. To achieve this, ECLD is dedicated to improving its knowledge and gathering information, never holding back on output, and continuously growing to propose and develop solutions for a better future.Position:Position DetailsThis position is looking for an engineer responsible for the development and operation of a real-time progress management system for warehouse inbound and outbound operations monitors and visualizes each stage from receiving to shipping in real time, supporting quick decision-making, such as staff allocation.The following tasks are expected for this role:- General product management, operational flow, and screen design.- Creating system requirements, functional requirements, and architectural requirements.- Building applications for high-load transactions and designing and implementing performance tests.- Basic design, infrastructure and middleware preparation, and log collection management.- Detailed design, establishing implementation policies, and conducting reviews.- Design/conduct/report on unit testing, coupled testing, system testing, automated development, and data preparation required for quality assurance, and review/bug handling of end-to-end and regulatory testing conducted by a dedicated quality assurance team.- Planning and executing system releases.- Designing and implementing system operations, including troubleshooting. Work EnvironmentThe entire department consists of approximately 160 members, including those in Japan and overseas. The group you will belong to is an organization of about 30 members.Many of our members join with experience as product managers or engineers in software development industry. However, most of them do not originally have a background in logistics and acquire their industry knowledge after being assigned to our department.We primarily utilize the internal Private Cloud environment, with some resources on Public Cloud. Mandatory Qualifications:- 5+ years of back-end development experience with the Java, Spring Framework.- Experience in application development using Oracle and SQL.- Experience in system operation and maintenance using Linux.- Ability to perform security-conscious coding and code reviews.- Ability to read, analyze, and understand existing code.- 2+ years of experience in designing, developing, and defining errors for REST APIs.- Experience in designing and developing logging frameworks.- Experience of utilizing cloud native environment (K8s/Docker, etc.).- Business level English ability.- Business level Japanese ability. Desired Qualifications:- 2+ years of front-end development experience with Angular, React, React Native, Android SDK and so on.- Knowledge of the logistics industry.- Experience in providing E-Commerce services (B2C, C2C, B2B2C).- Experience with messaging services such as Kafka and Rabbit MQ. Other Information:Additional information on LocationRakuten Crimson House (Headquarters)#engineer # #logistics #SCM #commerce