I applied through college or university. I interviewed at Fidelity Investments (Durham, NC)
Interview
The standard is two rounds, one 30-minute phone screen, one tech+behavioral with randomly assigned interviewer, and the experience varies between person to person. I had an hour of actual coding, concept technical and behavioral questions, but some people also had easier times.
Interview questions [1]
Question 1
Second largest number in an array. OOP principles.
I interviewed at Fidelity Investments (Merrimack, NH)
Interview
One behavioral round and one technical round. Technical questions were easy, don't expect anything over a leetcode easy. Fidelity cares more about your experience and what you learned from those experiences.