Captain O'Connor was born in Mt. Clemens, Michigan and enlisted in the United States Marine Corps Reserves in May 2015 as a Supply Administration and Operations Specialist. He reported to H&HS Company, 1st Battalion, 24th Marines, where he would spend the duration of his enlistment. While there, he participated in Integrated Training Exercise in 29 Palms and Operation African Lion in Morocco.

In May 2018, he graduated from Michigan State University and was commissioned as a Second Lieutenant. He completed The Basic school in April 2019 and reported to Aviation Supply Officer Basic Qualification Course in Milton, Florida.  He was subsequently designated as an Aviation Supply Officer and reported to Marine Aviation Logistics Squadron (MALS) 29, Marine Corps Air Station New River, NC where he served as the Warehouse Management Division OIC. He was promoted to First Lieutenant in June of 2020.

In November 2020, Captain O'Connor was selected to serve as the Legal Officer and Adjutant of MALS-29. In November 2021 he returned to the Aviation Supply Department to serve as the Customer Support Branch and Operations Management Division OIC.

In July 2022, Captain O'Connor reported to Marine Aviation Training Support Group 23 to serve as the Executive Officer for Marine Aviation Training Support Squadron 1.

His personal awards include the Navy Commendation Medal and Navy and Marine Corps Achievement Medal. Captain O'Connor has earned a Bachelor's of Science degree in Food Industry Management from Michigan State University.