The process involved two interviews. The first involved answering a range of questions about my background experience and some probing of my technical knowledge. The technical element was challenging but it was high level so isn't something to be worried about as long as you have a decent grasp of basic concepts and industry hot topics. It did however involve being put on the spot about various issues so it was helpful for this element that I had my own view on things rather than simply saying on the one hand, on the other etc. The second interview consisted of a mock client scenario with a presentation element followed by a Q&A. The presentation element was prepared in advance on a topic of my choice. The Q&A was fair in that they asked reasonable questions given the scenario. The second interview finished with a general chat over lunch with the wider team. As you'd expect everyone involved was professional and helpful throughout the process.