I was contacted via email by a recruiter. We chatted a bit, and the person had actually read my résumé.

We then scheduled a chat with two team members, during which we talked in general about development, processes, and preferences in working. It was all in a light mood.

Then I did a quick online code test using Kattis. The test was focused on algorithms, but in a down-to-earth way, with no weird arcane questions. Together with that, there was a longer code challenge, which I don't remember exactly what it was.

Then another chat with two team members, this time with some live coding. This focused on writing a bunch of very straightforward functions, but with a few gotchas along the way. Again, nothing too weird, just cautions that any developer will end up learning with time.

After that, they flew me to Stockholm, where I stayed for four days. A friend picked me up at the airport, and we took the train into the city. The hotel was exactly a three-minute walk from Klarna's office. I got there with time to fix the jet lag before the interviews, and also enough time to check out the city.

The in-person interviews were all very friendly. First, some code refactoring together with two team members, chatting about preferences and sharing stories. Then another couple interviewed me on the process of putting a project up, going from language decisions to deployment and scaling strategies. We had lunch then. And then I talked with the team manager to discuss more personal stuff, career paths, and things like that.

It all went smoothly and friendly, and it is clear there's a lot of focus on team fit. In the meantime between interviews, we took a walk around the building, and it looks quite good.

All code aspects of the process focused on general code and development matters, not caring about any particular tech stack, which is a big plus in my view. Also, everybody worked hard on selling Sweden as a country and on affirming the company's multiculturalism.

All considered, it looks like a very good process, and it was stress-free.

Say we want to create an app that's a calculator. What should we do?