Straight forward application form, got an offer for assessment day 5 days later. Assessment day: -1 hour Numerical/Logic test, no preparation required for this, you can either do it or you can't. -15 min tea break. -1 hour C++ programming test (on paper). Need to prepare for. Somewhere in your assessment day invitation email it will say "You don't have to know any C++ to pass the test...", don't let this deceive you, in my opinion the test requires a solid understanding of C++ to even read the questions, let alone answer them. The test consists of an A4 page of C++ code, you are then asked some questions on the code and to write some function bodies to match the function prototypes. The test (well my test anyway) made heavy use of linked lists and pointers so make sure you have a solid understanding of them. -Successful candidates then go on to get interviewed.

I applied on LinkedIn before receiving a questionnaire asking for more information. It asked for my math expertise in detail, including reasons why I want to work for the company.