The interview process was fast, with two stages. The first stage went well. The second stage was a case study. This felt like a matter of luck; either the interviewer liked you or they didn't. I suppose the interviewer didn't particularly like me, as their feedback was basically useless. Also, they need to be able to understand the tech stack. If the interviewer is not very technical with open-source technologies, then you're kind of stuck.

The first stage involves standard questions.

The second stage is about a case study: translating an enterprise system, using standard licensed software, into a more open-source option while meeting all necessary requirements.