PETCO's loyalty management system, 05/01/20 - 12/01/22, Petco loyalty management system manages their loyalty programs and track their members point accruals and redemptions. It delivers a full range of analytics, marketing, and service capabilities that help Business to understand each customer's lifetime value and design service levels and promotions that maximize the potential of the customer relationships. It offers various kinds of promotions like double bonus offers, free coupon vouchers, etc. Developed the backend services for PETCO's loyalty management system using Spring Boot. Employed AWS services like EC2, S3, Auto Scaling, IAM, CloudWatch, and Lambda to enhance scalability and reliability, significantly improving the efficiency and performance of the loyalty system. Home Collection, 08/01/23 - 12/01/23, Developed a user-friendly interface for purchasing home furniture utilizing Spring Boot, Spring Security, Thyme-leaf, JDBC, MySQL, HTML, CSS, Bootstrap, payment gateway API and Java 21.0.2 technologies. Student Management System, 08/01/23 - 12/01/23, Developed a course enrollment system for students utilizing Spring Boot, Thyme-leaf, JDBC, MySQL 8.0.36, HTML, CSS, Bootstrap, and Java 21.0.2 technologies.