Interview process consisted of behavioural questions, then hackerrank leetcode-style questions, then an in-person assessment centre. Behaviour questions were standard. Leetcode-style were at easy and medium difficulty. In-person assessment centre consisted of two separate interviews. Both interviews asked questions relating to times I had worked with large datasets, and how I would approach things in a privacy and security oriented way. At the end I was asked a tricky system design question that I don't think I successfully answered.