He played college football for the Arkansas State Red Wolves and the Notre Dame Fighting Irish and was signed by the Saints as an undrafted free agent after the 2023 NFL draft.
[3] As a senior, he was named all-state in both football and soccer, setting the school's records for single-season and career field goals made.
[3] The following year, he earned the starting placekicking job in week three and finished the season having converted 14-of-21 attempts, placing seventh in the Sun Belt Conference.
[3] In 2019, Grupe made 19-of-22 field goal attempts and was named first-team all-conference as well as a semifinalist for the Lou Groza Award as best placekicker nationally; his 110 total points scored set a school record for kickers and was second-best in the conference, additionally being the 13th-best total in the United States.
[15][16][17] In Week 3 of the 2023 season, Grupe missed a 46-yard go-ahead field goal against the Green Bay Packers, resulting in a Saints loss.