I received an interview invitation very quickly. Their website did not give a lot of information about the company and the interview also reflected this. I had to complete a test before progressing to the interview. I had to complete a NDA, so I cannot give any details about the interview questions. I didn't feel particularly welcomed and I was dismissed quite quickly.

HR take you to a small room, signed an NDA and given envelope containing letter on giving feedback for the 'assessment process' via glassdoor. Letter also mentions 'will be in touch soon with feedback on your application' more on that later. Encouraged to complete asap, I explain later on why that is mentioned. Then given an hour to take technical test, pretty standard(ish) questions. This is then scanned and emailed to tech team for marking. If you get above certain credit threshold you can stay and inteview does not terminate. I passed, then you are interviewed by team members that you may eventually work with. They will come and go, you don't really know who is coming in next and for how long, this for me was a couple of hours, eventually seeing four people altogether. Finally interview process came to an end and told they will let me know. Days went by, I contacted HR to see if there was any response/update to application no reply. So after a few weeks passed realise that's that!, they should have the courtesy to provide some feedback whether positive of negative for my time/money spent and then not get any response.