MEDICAPP (Insurance Medical Application)• Collaborated with the BA team to devise solutions and clarify customer features and requirements for system deployment and programming through SRS and BRD.• Designed, implemented, and maintained performance-optimized SQL queries via authorized/authenticated APIs with business requirements for files including admin, UW, NB, and clinics/hospitals (1,000-2,000 nationwide).• Configured and applied Camunda BPMN integration for automatic processing to ensure performance through the admin site by SpringMVC.• Conducted rigorous testing before code integration to minimize bugs, focusing on critical compensation and payment modules to ensure accuracy and efficiency.• Construct some Object-Oriented Programming core utils for Dynamic XLSX, Static XLSX, Job Scheduler, CRUD operations, and reusable layers contributing to an interval module called JCanary.• Assisted Front-End developers with screen-related API tasks and maintained clean, reusable, and optimized code.

DMS (Distribution Management System)• Being a member of a team of 8 backend developers in building a project for a customer in the insurance field.• Developed APIs and services using Java Spring Boot, integrated with JCanary.• Implemented core functionalities like complex cron job, dynamic search, and data import/export CSV/PDF features.• Managed Business Master Data, automated organization export jobs, and oversaw report management.• Meet customer's deadline and requirement through SRS, BRD

Probation project to improve user management efficiency by reducing manual data entry. The project included the following features:• Implemented password encryption for enhanced security and developed user authentication vs authorization based on predefined roles.• Publish an intuitive interface for user data management with a flexible search function. Integrated session management with real-time notifications.• Enabled data export in PDF format for detailed reports and CSV format for data retrieval and tracing logs by session. Implemented CSV import validation to maintain data integrity.• Implemented session tracking and comprehensive logging for auditing user activities.

Relame:• Spearheaded the creation of user profile APIs, ensuring seamless integration with the UI.• Implemented UI enhancements to align with the functionality of the APIs developed.• Maintained agile responsiveness to agency requirements, modifying project flow as needed.Transportation Project:• Led API development at tracking goods' status along with export pdf for the report status and scaling efforts for optimal server-side and client-side performance.• Initiated seamless integration of APIs into the user interface, aligning with business requirements.• Adapted and optimized project flow based on dynamic agency requirements at each stage.

Interval AIT Lucky Spin• Spearheaded the "Wheel of Names" project, a key component of user engagement during events. Managed the selection process for fortunate gift recipients at each stage of hosted events.Responsibilities:• Designed UI and built reusable components.• Developed the landing page, event joins state, and authentication page with Firebase integration and logic handling. • Led meetings on changing the state management engine into the application, git convention, coding convention, and lint. • Primarily handled data tasks within the project.• Setup and documentation for integrating Firebase services into the application.• Implemented CI/CD via GitHub Actions.• Integrated QR code functionality to enhance event participation.