I applied online. The process took 3 weeks. I interviewed at Optum
Interview
The process was short and simple. Started as a coding assignment which then turned into an interview. However, some interns were asked to perform an in-person interview. In-person interviews seemed more difficult than the online process I received.
The interview process was pretty quick and all took place in one month. It was not too difficult and included a coding challenge and onsite for the final round of the interview.