PositiveEdge Technologies Senior Software Engineer interview questions

first round was telephonic, then went for d f2f interview, waited for 30 mins. There were 3 technical rounds. Asked abt my professional experience,what was my core job. About my 2 qualities for which they should hire me. One weaknesses for which they shouldn't hire me. mock call for collections. Cross questions about my qualification. Told me how difficult it is to work, profile is full of pressure.