Application Engineer (Backend) at Rakuten, Tokyo

Development and maintenance of Rakuten Ichiba shop-related API services. Designed and implemented RESTful microservices using Spring Boot. Created unit tests and supported QA with test data preparation and defect analysis. Investigated production issues and supported timely resolution. Participated in migration-related design decisions and development. Conducted code reviews and collaborated with cross-functional teams. Used AI-assisted tools (GitHub Copilot) to support code understanding, refactoring, and test case generation during development and maintenance activities.

Application Engineer (Frontend & Backend) at Rakuten, Tokyo

Developed frontend features for PIOP Offline using React and TypeScript. Implemented backend services for SKU management using Spring Boot and Dropwizard. Built and maintained CI/CD pipelines using Docker and Kubernetes. Created unit and functional test cases using JUnit and Behave. Supported QA during testing phases and assisted in issue analysis. Maintained technical documentation in Confluence.

Senior Software Engineer at L&T INFOTECH (Client: Kyosan Electric Manufacturing Co. Ltd.)

Developed backend services using Spring Boot microservices architecture. Participated in requirement discussions with Japanese stakeholders. Prepared system design, QA, and test documentation. Acted as Team Lead onsite coordinating requirements and managing an offshore team of 4 members.

Associate Application Developer at FUJITSU CONSULTING INDIA

Led incompatibility analysis for Java migration from 1.6 to 1.8, managing a team of 4 members. Worked as a Java backend developer for SSE Airtricity (Peace CIS) billing support application. Analyzed billing issues and prepared data patch solutions.

Senior Programmer/Associate Application Developer at Capgemini India Pvt Ltd

Backend development for enterprise banking applications. Developed UNIX shell scripts for batch processing. Participated in specification reviews and code walkthroughs with users, BAs, and testing. Developed CRM UI components. Implemented backend invoicing and PDF generation with email delivery. Contributed to core engine functionality.