Support Leader to manage and operate BE team of 8 members.Assign work, monitor progress and ensure the quality of work is completed on time and as required.Resolve technical issues that arise during project implementation.Code Reviews & Mentoring Newer Team Members to ensure code quality.Reduce the rate of bugs arising by 20% when handed over to Testers.Communicate with Product Owners and stakeholders (Business Development & Marketing) to determine impact and follow up with new requests.Responsible for developing Loyalty and Notification services towards core service to help reuse in current and future projects of the company.Receive, support and handle problems arising from customers in the Production environment.Participate in deploying services to environments such as UAT and Production.

Managed information for applicants using the company's recruitment support tool, including applicant details, job types, interview scheduling,and email notifications.Developed and maintained Java applications using the Spring Framework. Interacted with Oracle databases through JPA. Designed andimplemented RESTful APIs to communicate with other applications. Participated in requirement analysis and system design.Ensure software quality through Unit Testing and Integration Testing, reducing error incidents by 25%.

Develop web applications revolving around QR-CODE business activities. Some projects such as: QR-Code Marketing, Product informationtransparency, Datahub Developing and maintaining Java applications using Spring Framework.Designed and implemented RESTful API for communication with Client and gRPC for communication between internal services.The PostgreSQL database is built and optimized to ensure performance and scalability.Use Elasticsearch to divide responsibilities between reading and writing data. Participate in requirements analysis and system design.Optimized import function and reduced processing time by 30%.