I applied through a staffing agency. The process took 4 weeks. I interviewed at Klarna in Nov 2015
Interview
First interview was on-site with 2 software engineers, was given 2 technical problems to solve on a whiteboard. Then I was given a problem to solve at home. After I submitted my solution I had a video-conference with 2 different engineers, explaining my solution for the exercise. Then I was invited on-site again for another technical interview, and had to refactor the code I wrote at home and to implement a new requirement. Next interview was a regular HR session, and the final interview was with the manager.
Write a script to parse text files with ASCII digits, converting them to decimal digits. Add functionality for corrupted digits. Add a checksum implementation. Write unit tests.
it consisted of 3 parts, HR, technical, behavioural. The technical part was a leetcode hard problem but they did not expect a hard solution. The behavioural was related to leadership principles similar to most companies.
I applied through a recruiter. The process took 4 weeks. I interviewed at Klarna (Paris) in Oct 2025
Interview
I had a second experience with Klarna. After the ghosting of last year, Klarna reach out again for a SWE position. The same happened. After the first discussion, I have been told again to book a slot for the second round. And then... no news from anyone.
Second ghosting. Klarna has a terrible HR process and policy.
I feel like I dodge a bullet here. The work environment might be pretty toxic if it is aligned with the HR practices.
Interview questions [1]
Question 1
questions about your past experience, and what are your expectations
1. HR and logic test
2. Tech - take home projects, a generic web project, and discuss
3. Design round
4. Manager round - discuss position and what to do
