He played college football at Boston College and has been a member of the Miami Dolphins, New England Patriots, Carolina Panthers, and Washington Commanders of the National Football League (NFL).

[3] After going undrafted in the 2019 NFL draft, Monteiro signed with the Miami Dolphins on May 10, 2019.

[5] On October 22, 2019, the New England Patriots signed Monteiro to their practice squad.

[7] On November 12, 2019, the Carolina Panthers signed Monteiro to their practice squad.

[21] On December 13, 2023, Monteiro signed with the San Antonio Brahmas of the United Football League (UFL).