First a 10 min call with HR.
Then a take-home dev test with 4 questions. One week to do the test.
Then an interview about the take-home test. Then 3 other 45 minutes interviews with technical and behavioral questions. The subjects we would talk about in the interviews were provided beforehand. The HR was very accomodating for the interview times and to answer questions promptly.
Interview questions [1]
Question 1
Math questions about tensor permutations, matrix multiplication
Something hard that you did at work and how it could have been done otherwise
The interview process began with a phone call with a recruiter, followed by a Zoom technical interview with the team leader, who asked about my experience. After that, I had two system design interviews, and finally an HR and senior manager interview.
Interview questions [1]
Question 1
Design Bitly – URL shortening service.
Design recommendation server – you receive a list of campaigns and filter them based on business logic.
I applied online. The process took 4 weeks. I interviewed at Unity (Copenhagen, Capital Region) in Jul 2025
Interview
I started with an initial conversation with Recruiter team, where the process was clearly explained to me. After that, I quickly moved to a high-level discussion with the hiring managers about the team’s architecture and specific needs.
I was then guided into several technical interview rounds — about four sessions, each lasting around 45 minutes. These included both team members and experienced professionals from outside the team, with diverse backgrounds. Almost every stage included a coding assignment component, as well as high-level discussions and deep dives into relevant parts of my background.
The entire process took around four weeks in total: about two weeks for the interview stages to be scheduled and completed, and another two weeks before I received the official result. Throughout the process, interviewers were intelligent, collaborative, and supportive.
I enjoyed the experience and gained a clear understanding of what the role involves. The challenges were fair and engaging, without feeling overwhelming. I was very happy with the outcome.
Interview questions [1]
Question 1
focus on solving algorithmic problems in the style of common online coding platforms, particularly involving data structures and graph-related challenge