I applied online. The process took 1+ week. I interviewed at adaplo (Athens, Athens, Attica) in Apr 2017
Interview
First stage is a phone call with the CTO.
Then they give you a small exercise where you have to consume a 3rd party WEB API. Pretty standard, with the only difference that they expect a front end as well. The choice of programming languages and libraries is up to you which I think is pretty cool. The only give you 24 hours to complete which can be challenging when you are very busy.
Interview questions [1]
Question 1
Consume a 3rd party WEB API by creating a simple web application where you can add /delete and list resources .