Tip 1 : Be very clear with java basics, polymorphism in multilevel inheritance. Future, callable, completable furture in concurrency, stream api.Concurrent hash map, Database locks , how Database indexes are fast.
Tip 2 : In 2 round they are going to make you do a low level design for an application. In my case it was library management system, Be ready for the follow up questions like how many tables are you going to use this low level design, normalizing the tables you have used. Write logic for one of the service in the low level design.
Tip 3 : For the managerial round, you should know why you used this partcular tech stack.
Tip 1 : Only mention those things in projects which you have really done in your organization. Morgan stanley is particular rigorous about the projects.
Tip 2 : Be sure to highlight what business values your project brought to the organization
Library management System
Questions about project and why the use of this particular technology
Tip 1 : Make sure to study why you have use this particular tech