He was signed by the Baltimore Ravens as an undrafted free agent in 2020 following his college football career at Iowa.

Welch signed with the Baltimore Ravens as an undrafted free agent following the 2020 NFL draft on May 6, 2020.

[2] He was waived during final roster cuts on September 5, 2020,[3] and re-signed to the team's practice squad the next day.

[9] The Ravens placed an exclusive-rights free agent tender on Welch on March 10, 2021.

[14] Welch was signed to the Green Bay Packers practice squad on August 31, 2023.