• Designed and implemented REST APIs using microservices architecture for client access to bank products. • Resolved critical application bugs, enhancing performance and user experience. • Collaborated cross-functionally to ensure API reliability and scalability. • Conducted rigorous testing and debugging to maintain software quality. • Implemented best practices to optimize operations and customer satisfaction. • Participated in an internal training program focused on developing REST services for internet banking, including user registration, account opening, transactions, and statement retrieval. Applied security measures using Spring Security and JWT (JSON Web Token) to protect sensitive data.