I applied through a recruiter. The process took 4 weeks. I interviewed at Gain Theory (London, England) in Jan 2019
Interview
I submitted a CV and had a face to face interview in 3 parts: theoretical questions, data analysis and presentation to a panel of two reviewers. I believe the interview lasted roughly 3 hours in total.
Interview questions [1]
Question 1
Technical Questions e.g. definitions of various statistics