I got a intital communication from cognizant HR reg a open position in San Jose CA for Hadoop developer position. I had interview with the Cognizant folks which I cleared. Then I had 3 rounds of technical discussion with clients which went for 1.30 hrs. Clients grilled me more on Java and Hadoop knowledge. Finally I got the offer.
First there will be a screening round ,most probably a telephonic or video call followed by a Managerial round
Lastly a client round where you will be asked about your day to day contribution in project
I applied through an employee referral. The process took 1 week. I interviewed at Cognizant (Winston-Salem, NC)
Interview
Screening from a cognizant employee via a phone/teams call, sometime involving a scenario based coding question or a tell me a time when kind of questions, then a client round interview.