I applied in-person. The process took 1 week. I interviewed at Chobolabs (Sofia, Sofia (city)) in Jan 2016
Interview
Great interview - gives you good idea if you are suitable for the job. There are few steps:
1. Talking with the CTO general talk + soft skills
2. Technical interview talking with the CTO and with team lead for that team
3. Two day mini-project that would be a POC for some feature that they have in their backlog
Interview questions [1]
Question 1
How would I design a leader board system for their game