Morgan Stanley Senior Developer interview questions

Got a call from HR and hackerrank test was given for initial selection. Hackerrank test was for 1.5hr and it has 9MCQ having JS,Closue,React based question 3 Coding questions: 1st was easy, 2nd was medium, 3rd was to build TODO app using Angular/React The TODO app had boilerplate code to start with and we need to be clone and commit in GIT Once the HackerRank test was passed, There were 4 technical rounds Due to covid situation, all the rounds was over phone/zoom Round1: UI/JS basics (Phone - 45min) Native and OOPS concepts in javascript Prototypes in JS and example Call and Apply in JS Get rid of 500+ console.log in production mode Timer events in JS object vs map event capturing and its usage Round 2: JS and React (Zoom - 45min) Real-time handling using websockets Disadvantage of websockets Security in sockets React virtual dom internals How to skip vdom for particular element Array.isArray internal implementation How to identify a memory leak Round 3: UI/Design level (Zoom - 1hr) Why not angular When to choose react, angular and vue Build a dynamic UI form system which will be dynamic without code change, on the fly template gets created with validations etc Stock ticker-- Real-time updates in a stream-based fashion Rxjs use case How will be communication between component happens (child-child, and parent-child and deeply nested child) When to use state management like redux or vuex How will you build generic component and webpack Round 4: Director Round (Zoom - 1HR) More of my office project how we work Walkthrough of my Git projects When to choose which framework - react, angular and vue Why our project picked up vue when react/angular is already established and highly available in market More of managerial based questions on teamwork, release, deadlines, code reviews etc was asked. After all the rounds, It took almost 1weeks from HR to send mail asking for candidature documents. One week later after document verification, Got a call from HR for offer discussions

Its very long process. I have given 6 tech round they also asked me about package and notice period details in the last round. It seems like i have got the offer. But i haven't got any reply from them. I I am expecting feedback but no one replying to my call and mails. After spending this much time they should have given at least some feedback. This is very bad. HR will never attend your call. Only when they need you, will call you. No reply to mails. Please give feedback if some one has cleared all the round and you are enquiry about package and notice period.