Not at all professional. The recruiter contacted me via Linked in for a position the have opened. The odd thing it was i was contacted in the middle of the night. She sent me the job description and a link to a portal to take a test. The test was not at all related to the position I was being recruited for, all subjects being related to Mathematics and Analytics. After i took the test I was contacted by the recruiter to have the interview set in her Lunch break, but at asking her for the date and time she ceased to reply back. Overall the experience was the strangest and most unprofessional one I ever had during an interview.