Java J2EE functional programming with Spring-Boot concepts Data Structure & Algorithms Micro-services HL/LL Design Patterns Cloud exposure - hands on implementation of public or private cloyd infrastructure Application integration using MQ, Kafka, REST API Security - JWT, OAUTH, Password Encoder, Kerberos, Authentication/ Authorisation concepts CI/CD - Maven, Docker, Jenkins SQL - DDL, DML, Joins & aggregate functions, indexes, locks, cursors