I attended walkin and selected for Full Stack development.. Able to complete all rounds in single day.. though it took 2 weeks to release the offer.. And they do regular follow ups for client interview and you will be given multiple chances for client interview
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.