I applied through an employee referral. The process took 2 weeks. I interviewed at Optum (Bengaluru) in Oct 2017
Interview
You need to apply when there is an opening then be on time to create that good impression. There would be 4 to 5 rounds of interview. 1st one being the basic and simple 2nd one with the managers with whom you would be aligned to 3rd one being the optional one if they want to further analyze 4th one being the HR round where you can negotiate your salary.
Interview questions [1]
Question 1
You skills and experience is very important as they wouldn't hire beginners mostly.
Had 2 rounds. Questions asked were mostly on Java. and all the questions were basic although some are tough. Asked some qusns on time complexities. good experience. Asked some basic questions on other technical subjects like Os.
I applied through an employee referral. The process took 2 weeks. I interviewed at Optum
Interview
5 rounds of interview.
Interviewers were very helpful, interviews felt like a discussion. Focused mainly on DSA,SQL and CS fundamentals. 4 technical interviews and 1 HM round were conducted for me.