First round: Talk to HR. (HR was late to the call by about 10 minutes and did not apologize.)

Second round: Codility test with 3 questions.

Third round: Logic test, which was pretty easy if one prepared with the resources provided by HR before the round.

Fourth round (2 sets of interviews): i. Bar raiser interview (normal work situation questions, nothing technical). ii. Technical interview (the interviewer had a preconceived answer in mind and, if a candidate didn't arrive at it, suggested they write working code for that answer).

Fifth round (2 sets of interviews): i. Technical interview (system design interview; the interviewer repeatedly asked the same question even after receiving an answer. For questions the candidate didn't know, the interviewer continued to press for an answer despite the candidate stating they had no idea). ii. Bar raiser interview (same as before, with some normal work situation questions, nothing technical).

Finally, HR called unannounced and offered the job with a €10K lower salary. HR stated this was a good offer, noting Klarna's position as the second-largest fintech company globally and its rapid growth in the US. HR also mentioned that, after 1-2 years, former Klarna employees have good job prospects elsewhere.

The candidate questions whether Klarna aims to retain talent or simply hire individuals willing to work for lower pay, expecting them to leave after a year or two for better opportunities, leveraging their "ex-Klarna" experience.

The exact words of HR were: "Having worked for Klarna (as the world's 2nd most valuable FinTech) will unlock a lot of opportunities for you in 1-2 years down the road, as Klarna engineers are very well sought-after, just like those from the big American tech companies."

A Codility challenge.

Pretty usual system design questions.