Arabian Technical Services interview questions

The employer send an email and set for an interview. During the interview they will ask more about the current status of employment, visa status, reasons why leave the previous company, what will be salary expectations

I received a phone call from HR department mentioning the vacant position of environmental engineer. I accepted their invitation for interview. The interview lasted for 30 mins in which starting 10 minutes comprised of HR round and the remaining 20 mins I spent in answering technical questions. The interviewer was a UK national and was serving that company in the capacity of corporate HSE manager.