Optum Software Engineer interview questions

Pretty Simple Interview Process Call with the hiring manager. Onsite - they told 2 folks will interview me, but ended-up with just 1. I was very surprised by the process and I had very minimal experience but got hired very easily. I noticed this pattern for many other folks. Today I feel they need to raise the bar and have proper interview process in place to hire real devs. This was me after working 3 year here.

campus interview, there are 2 person that interview me and after that one month I never hear anything back from them. they ask about school project, why do you choose Optum. Explain some coding question