I applied online. I interviewed at Mastercard (Lisbon, Lisbon District)
Interview
The interview was friendly, intuitive and made me think about what I want. Everyone was friendly and welcoming and ready to help. It was 3 phases, questions, after that was the technical and the last was a personal interview.
Interview questions [1]
Question 1
What was one obstacle during my life and how did I overcome it?
The process was fast with 3 rounds of interviews. Online assessment, on-site interview followed by a round with the hiring manager. Medium level questions online and hard level leetcode question on-site.
Fairly simple interview question that required knowledge of basic data structures. I could use a programming language of my choice. The interviewer then asked some additional questions and requested several solution extensions