First round phone screen, phone screen with department recruiter, last round interview with 2 interviewers. 2nd phone screen recruiter lost my application during the holiday season and never gave the final round interview notes to the hiring manager and did not contact me until I inquired first.

3 Parts - One phone call just getting to know you, another phone call gauging interest in the company and program, third call purely behavioral. All around pretty easy and light stuff, if you actually want to work for Fidelity they'll be able to tell.