I applied online. The process took 2 months. I interviewed at Thing Pink (Porto, Oporto) in Dec 2017
Interview
Filled a form on the company website, after a month (+/-) got an email to schedule an interview.
The interview was with the chief of the department and a developer. They present you the company and ask about your background and expertise, all regular stuff.
After this you get a challenge to complete within a week.
Interview questions [1]
Question 1
How/when should you commit a new feature that you developed.