- Collaborated in building a robust delivery application for national couriers, ensuring seamless user experience and operational efficiency.- Set up and configured application servers along with CI/CD pipelines to streamline deployment.- Enhanced the application’s service architecture, optimizing performance to handle thousands of requests per minute with improved scalability.- Optimized the API codebase to reduce server resource consumption, improving response times and overall system efficiency.- Developed a data migration service to transfer large datasets from the main database to Elasticsearch.- Created and implemented multiple monitoring dashboards for internal users.

- Built a feature-rich e-commerce website, focusing on user experience dan performance.- Designed and maintained a database architecture to support the website's functionality and ensure data integrity.- Analyzed visitor traffic patterns to identify trends and implemented technical solutions that enhanced the convenience and overall experience for users, improving engagement and conversion rates.

- Repairing and assembling employee computers / laptops- Install OS and applications- Input calibration data with Ms. Excel