Pretty Straight forward but multiple rounds required and they do ask technical questions based on level applied for. Most people are friendly and having the right upbeat personality definitely helps.

Got call from HR and scheduled interview for next day. 1st round: Two Senior members of the team interview me for 2 hours 2nd round: May be Test Manager or Test Lead interviewed for 30 mins It was very difficult to understand the way questions were asked. He just need Yes or No. HR has no time to say " you can leave for the day". She called to security people and Security people are saying "You can leave for the day". By facing this type of interviewers I can say that I don't think ADP is still having the employer of choice culture.