I applied online. The process took 1 week. I interviewed at Gettick (Prague) in Jun 2015
Interview
Nice interview with a senior guys. Standard JS questions and then some algorithmic tasks followed by a React test. The interviewers were nice all the time and when they say that you're stuck, they even gave you some hints. Overall I had a good feeling about this interview. I would recommend to go through JS principles in general before you apply. Don't expect some jQuery there.