I applied through college or university. The process took 2 days. I interviewed at Optum in Jan 2019
Interview
Slection Process consisted of 4 rounds.
1st Test consisted of online test with English,Aptitude,Programming Concept question.
2nd round was Technical Interview and 3rd round was also Technical Interview with Technical Head and last was HR Interview.
Interview questions [1]
Question 1
They focused a lot on database and SQL queries question with some JAVA concepts or whichever language you have written in your resume.
I applied online. I interviewed at Optum (Columbia, MD) in Jun 2013
Interview
I applied at a job fair and was referring to a coding challange, within a few weeks i received the link to the challenge. There were 5 quesitons in total. 2 were about basic algorithms questions, such as Big O, the rest were problem solving.