Galvin grew up in Texas and attended Katy High School, where he helped them compile a football record of 12–1 as a senior.
[1] Galvin committed to Baylor University over scholarship offers from UCLA, Florida, TCU, and Colorado.
[1] In his sophomore season, Galvin played in ten games, missing four due to injury, being a starter in nine.
[1] As a junior, Galvin was named Preseason All-Big 12 Conference and started eight games at left tackle.
[3] Following the conclusion of the 2023 NFL draft, the Detroit Lions signed Galvin as a undrafted free agent.