I applied online. The process took 1 week. I interviewed at FotoNation (Bucharest, Bucuresti) in Mar 2017
Interview
Interviewers were friendly, they asked questions about C programming along with some basic probabilities and math. There were some weird 'what does this define' do questions, but they weren't too hard. They also asked about general concept of Machine Learning (very brief discussion about certain keywords such as pca, viola-jones, haar, etc).
Interview questions [1]
Question 1
Integral Image, what are false positives, convolutions, etc.