I applied online, from the website's careers section. After some time I was contacted by company's HR and got short assignment I was supposed to solve at home and send back to her. As my assignment was approved by Team Lead I had two interviews later on with HRs and Team Lead. The questions I was asked were both general (why GOG, what are my strengths, what are my plans for the future) and more position-specific (few "imagine the situation..." questions, how I deal with difficult customers, how I organize my work etc). The whole process was a very pleasant experience, interviews looked more like conversations with some funny moments and jokes. I always received replies and feedback quite fast, maximum few days of waiting. The HR was always ready to quickly answer on my questions over the email if I had any during the process.