ACES (ACCOMMODATIONS CREW ECOSYSTEM), Java Backend Developer, Airline crew accommodation and ground transportation platform for reservations during crew layovers., Java, Spring Boot, Spring MVC, Hibernate, JPA, Struts, JSP, REST APIs, Microservices, PostgreSQL, Kafka, ActiveMQ, JBoss, Jasper Reports, Git, AWS, Integrated the ACES product for Air India, JetBlue and Akasa Air, implementing airline-specific reservation workflows and business rules., Developed backend services and REST APIs using Java, Spring Boot, Spring MVC, Hibernate and Struts., Worked on hotel and ground transportation reservation workflows and PostgreSQL data operations., Resolved defects and production issues, performed root-cause analysis and implemented fixes., Supported JBoss deployments, Jasper Reports and Agile sprint activities, Kanban task management and code reviews.