Attending BC is not a guarantee of an opportunity to work in IB, but it does increase your odds of getting an interview with the ten bulge bracket banks.
Did you get the PM that I sent to you ?
How did you get your IB internship while at your current school ?
Is the bank a boutique or a bb ?
What is your home state flagship university ?
Getting an internship with IB is a significant step toward getting an offer of employment.