Kubermatic interview questions

TL;DR - They pay way below other Hamburg-based companies. I am living in Eastern Europe and have lower cost of living, they still felt like I asked a lot. I had an initial round with the Talent Acquisition Manager. TL;DR is that she asked about the annual salary expectations from the get-go and I was very straightforward about what kind of salary I would consider switching jobs for. I was informed that I was reaching for the maximum budget available for the role but we both decided we would continue the process. I got a home-test assignment with very straightforward and precise instructions and constraints from their technical lead. I went above and beyond in every single way I can think of and submitted the project a week later. I'm pretty sure I demonstrated Angular mastery in every single way, but they begged to differ. I got a rejection letter a few days after I submitted the home project, without any explanation.