At Nucleus Software, I build Java backend systems for CIMB Bank, including RESTful APIs with Spring Boot and Hibernate that enable data exchange between internal and external systems.
I integrated Spring Security for authentication and authorization, and implemented Kafka-based event-driven modules for real-time transaction processing.
I optimized SQL queries, reducing database latency by up to 40% and improving batch process efficiency. I also containerized applications with Docker and deployed them through Jenkins pipelines.
On an e-commerce web application project, I developed a full-stack platform using Java, Spring Boot, MySQL, and Thymeleaf. Its design patterns contributed to a 25% faster response time.
