First Stage: Telephone Interview and Data Science assessment.
Second Stage: 3 face to face interviews on premises with the last one being a panel interview and a presentation based on OR assessment given.
The data science assessment of the first stage was not directly relevant to the position. The OR assessment was more in line with what was expected from the role.
The second assessment required a lot of time, coding and research which was not easy to do with a full time job.
They reimbursed travel expenses, which was very positive.