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Back-end
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Migrated legacy applications to Spring Boot architecture. Developed interactive UIs using JavaScript; built services using Spring (XML-based). Utilized AWS services such as CloudWatch and S3 for monitoring and storage.
Built microservices including Charge and Bank Info using Spring Boot. Integrated REST and SOAP APIs for inter-service and Central Bank communications. Designed secure REST APIs for fintech platforms using Spring security (JWT), using private/public key infrastructure.
Developed RESTful B2B services for travel and real estate platforms. Integrated Kafka for asynchronous messaging and enhanced system performance. Worked with cloud deployment using Docker and Google Cloud.
Developed Credit Scoring, Account Info, and General Ledger systems. Worked on backend with Spring, Hibernate, EJB, Oracle, and frontend with JSF.
Contributed to the Core Banking system 'Lotus': Built and maintained modules for lending, ATM monitoring, customer onboarding, and PIN Pad.
Worked on Retirement Background System using Spring, Hibernate, and JSF. Delivered reliable data processing and reporting features.