I had the first round of telephonic interview, where the main questions asked were to understand how well I suit the position of data engineer. After a brief introduction about herself and interview process, she asked to introduce myself to past experience, academic background etc. This was short interview lasted 30 - 35 mins. Once clearing the first round, I was invited to the personal interview held at Hanover. Here I was expected to present myself for 15 mins using powerpoint slides. It's more of a conversation and to understand your knowledge. There were no problems with the same. The interview endured for 1.30 hrs.