A former resident of Smyrna, Georgia, Gillikin helped lead The Westminster Schools to its first GHSA Football Class AAA Georgia State Championship since 1978 in 2015, and was rated as a five-star punter and a five-star kicker by Kohl's Kicking Camp.

Gillikin is second all time in net punting yards in school history behind Jeremy Kapinos.

[1] Gillikin signed with the New Orleans Saints as an undrafted free agent on April 27, 2020.

[4] Gillikin was named the Saints starting punter for the 2021 season after the team released longtime starter Thomas Morstead in the offseason.

[5] Gillikin did not receive a qualifying offer following the 2022 season and became a free agent on March 15, 2023.