react.js , Soa, Soap, Java, J2EE, Node.js, Spring MVC, ECS, Dao, REST, Sso, Css 3, Design Patterns, Json, Hibernate, AWS, Portals, Kubernetes, Esb, Html 5, Open Source products, Transaction Management, Messaging, integration patterns, Quarkus, event based architecture

Docker, Spring Boot, Jwt, Kubernetes, Spring Data Jpa, Oauth2, Hibernate, Kafka or similar messaging platforms, ScheduledExecutorService, Spring Cloud Gateway, Java 11 or higher

Logging, Microservices, Multithreading, Algorithms, Core Java, Data structures, Concurrency, Error handling, REST API architecture, Event-driven application development, Java fundamentals