Who is this jobber on Cobra Kai?

Finance bro.

Ivy Leaguers.

Is it a song Trent Reznor composed for Nine Inch Nails' The Fragile or Pixar's Soul?

Lost
Somewhat Damaged
Just Us
We're in This Together
Epiphany
Pilgrimage
Betrayal
Complication
Falling
The Big Come Down
The Great Beyond
The Great Below
Enjoy Every Minute
I'm Looking Forward to Joining You, Finally