Workhuman Sr Systems Engineer interview questions

It was highly unprofessional. First round was a free chat with CxO level. No technical questions jist a get to know each other. 2nd round was the "technical" interview with two techie. Funny enought there was 0 (!) technical questions. But was not a star interview either. A short discussion about my previous jobs and tasks. 3rd round was a regular hr interview. That was the most professional. Then decliend my application due "lack of technical knowledge". LOL. Also they denied to explain it/share the comments (a bit against the EU regulations). Feels like a garage company with zero professionalism or culture