I applied through an employee referral. I interviewed at Feedzai
Interview
Live code interciew in Java where I had to solve a library exercise, after that they tested my knowledge with open ended questions, mainly focusing in databse design and memmory management
Interview questions [1]
Question 1
How I would design a database for millions of inputs per second
I applied online. I interviewed at Feedzai (Portugal) in Apr 2026
Interview
Interviews in order:
1 . Hr interview - Background, previous projects.
2. Code challenge - LeetCode type with some technical questions
3. System Design interview - Classic system design challenge in a white board
4. VP/Director - Cultural fit
Interview questions [1]
Question 1
They did a lot in deep question regarding the system design part, it's important to have a nice architectural knowledge.