The phone interview was easy enough. Typical questions like writing a function to print out the Nth Fibonacci number and how to test a calculator. MS then invited me to Redmond for an on-site interview three weeks later. I was confident up until the third interviewer, who was more confrontational than the rest. The fourth interviewer took me to the employee cafeteria on the top floor for lunch, and later back to his office for more questioning. I was exhausted by the time I finally met the fifth and final interviewer, and made plenty mistakes that ultimately led to a no offer. As this is a SDET position, the interview questions were consisted of mostly coding questions and how to test them, with a brief discussion on design pattern (explain singleton), and one puzzle (divide the clock into segments using two lines so that the numbers in segment add up to the same sum.)