I applied to Microsoft on their careers page. Got a call after 2 months from the date of applying. The interview process took 3 weeks time. I interviewed at Bellevue, WA in June 2017. After a brief chat with the recruiter, she setup a technical phone interview. The question was trivial, but with a twist, making it interesting. The interviewer was helpful and guided me towards a solution. I managed to get a suitable solution which cracked the problem. After clearing the telephonic round, I was called onsite. Microsoft is huge in Seattle and you may get awestruck by their infrastructure in the area(It was my first time in Seattle as well!). I was scheduled to meet 4 team members. From the interview panel, two people ask core technical whiteboard coding questions while the other two ask design questions. My first interview was with a Senior Software Engineer. He asked me a coding question that is fairly popular on Leetcode/CTCI etc. I managed to reach the solution. The interviewer was impressed. My next interview was with a Senior Engineering Manager. He asked me a design/coding problem which I had seen for the first time. I managed to reach a respectable solution. Next was the interview with a Software Engineer 2 who was also my lunch buddy. He asked me a design question, I managed to design a Java solution for this. He was happy with it. Lastly, I was called for the final round. This was the toughest interview of all. I came up with an iterative solution for the problem. It worked well, but then the interviewer asked to come up with a recursive solution with optimized time complexity. I managed to write the recursive solution after taking some time and scratching my head around the problem. But, it is worth mentioning, all the interviewers try to take you towards a solution, they help and guide you. They want the solution to be with good time and space complexities and also ask you to give some test cases for your solution.