First round is written test based on the position you have applied for.
Second round is HR interview if you clear test.
Third round is hiring manager discussion which includes technical questions.
I applied online. The process took 1 week. I interviewed at BT Group (City of London, England) in Jan 2023
Interview
Good. I had no issues with the process. Not really the right the role for me but the interviewer was accommodating. I will keep looking for the right role. BT is huge corporation. A little too big for me.
Good process. Well thought out questions. Plenty of notice given for the interview. Follow up questions were good during interview. A lot detail provided about the role. Overall not a difficult interview.