Sent CV online and the next week they responded with a link to an online coding assessment. 3 questions in 2 hours, nothing too difficult. After a few days, I was invited to the assessment centre. There are 2 parts of assessment centre. The morning session is based a logic test and a java test, both paper based. If you pass this session, the afternoon is a technical interview with 3 people and then an HR type one on one interview with one of the senior engineer.