In Codility I has to solve: Sorting data based on Grouping in Java and SQL Group by query. Hiring manager was very strange they were looking for a replica of their own team rather than a new software developer. I answered all the questions and discussed about the working paradigm. Since each company has its own culture and working paradigm but he was not getting this point. An excuse I got was that You work with legacy systems and small teams. This is really really strange.