Overall it was calm and nothing out of the ordinary. The whole interview process went smooth and everything looks great. Regardless, answering all questions and solving codding problem wasn't enough to pass Tech Screening. Rejection reasons (pros) which I was giving were related to the following: "Needed heavy prompting on Big O notation" (didn't give the worst case scenarios, but still answered correctly on avg/worst after I was asked about worst case); "Preferred answering problem solving question in managing expectations initially rather then tech problem" (the question was explained in the manner that I misunderstood it with behavior questions, when in the question were mentioned "need to be done in 15 minutes" and "Project Manager" in one sentence) Solving DSA codding question in 20 minutes is considered long which was also one of rejection reasons. At the end, engineering skills didn't have impact on end result, only if explanation to the codding question/problem solving question was one that interviewer considered understandable/clear and you managed to solve it without back thought in under 20 minutes.