Microsoft came to my university during a career fair where I gave my resume. 2 weeks later they called me for an on-campus interview. The interview was short (~30 mins) and I was asked one simple coding question (Rotate array from middle) and one system design question (Design Amazon.com). I fumbled a little on the system design part as I wasn't prepared much for it. My recruiter sent an email saying I was selected but the interview slots got over (in November). I followed up in January and fortunately, they called me for on-site interviews. On-site Interview 1: Given an array A, find the count of the ordered pairs. An ordered pair is defined as any number A[j], such that A[j]>A[i] and j>i. You have to do this in optimal time. Interview 2: Given a 2d matrix containing 0s and 1s, count the number of shapes in the matrix. A shape is represented by adjacently connected 1s either horizontally or vertically, but not diagonally. Interview 3: Design a data structure which represents both a stack and a queue and all the operations (pop, push, enqueue, dequeue) are performed in constant time. Some behavior questions during this interview as well (Accomplishments, Why Microsoft?) Interview 4: Given a 2D matrix with 0s and 1s, find the cost of the shortest path from the top-left to bottom-right where the 0 and 1 represent every cell's cost I couldn't get the offer as I went blank during my 4th round even though the question wasn't hard. Practice LeetCode and CTCI and you should be good to go.