I interviewed at Barclays, There are two rounds one is SQL and Tableau. Second is python coding round. In First they asked about basics of SQL and Tableau and In second they asked about binary search, data structures and difference between Array and Tuples.

Call for 60 mins, couple of basic questions about Python, nice HR and manager. They were explaining the project that they are working on. Topics: 1. List vs tuple 2. Pandas 3. Numpy 4. Multithreading vs Concurrency