All these skills are mandatory
Core Java,Spring, MongoDB, Hibernate,Design
Expert in Core JAVA (JAVA 6, 7), good understanding of Object-oriented analysis and design (OOAD).
Good understanding of data structures.
Experience in working with Mongo DB
Should have worked on Network Management Systems (or EMS)
"Good understanding of multi-Threading concepts,Experience in developing RESTful Web Based applications.
Experience and understanding of web application servers and containers such as apache, tomcat, Jboss.