Very bad and hard. They asked many questions which you need to be prepared enough to solve. Most questions were about power engineering and which I was not quite experienced.
Questions about my background. Describe previous challenges. What you could do better to improve the development process. Questions about experience with co-workers and how I settled disputes. Personal questions about where I'm from and what are my hobbies.
Interview questions [1]
Question 1
What challenges did you face in your previous role?
Three rounds of interviews that ended at the pub and hanging out with the future team.
Was a good social fit so went well, and knowing people from the industry made the interviews easier again. Technical interview of not over the top but enough to get the point across.