MathWorks Software Development Engineer interview questions

First received OA which is pretty hard and time is short considering the difficulty of the questions. Then got a phone interview where I was asked a coding question of 3 sum. Got rejected 2 days after

First OA, simple algorithm questions, then a phone interview, after that is a phone call from manager and onsite interview. Asked about simple data structures and a software design question, overall not very hard and all interviewer were very friendly