Arianna Osier started her first role at UC Davis in June of 2022, overseeing Football, Field Hockey, Lacrosse, Swim & Dive, Women’s Water Polo, Men’s Water Polo & laundry services for the Edwards Family Athletic Center.
In early 2025, Osier was promoted to her current role as Assistant Athletic Director - Equipment Operations, working primarily with the sports that call UC Davis Health Stadium and Schaal Aquatics Center home.
She previous worked at Cal Poly from 2016-20, where she completed her Bachelor of Science in Recreation, Parks & Tourism Administration with a Concentration in Sport Management.
With the Mustangs, Osier worked with all 21 varsity sports as a student manager. She went on to Illinois State University for an Equipment Room Graduate Assistantship from 2020-22 where her main responsibility was Football, but also worked with Track & Field, Baseball, Softball, Women's Soccer, and Gymnastics.
She completed her Master of Science in Kinesiology and Recreation, Sport Management Sequence at the conclusion of the graduate assistantship.
Osier resides in West Sacramento with her boyfriend and two dogs - Moose and Zola.