Amichia was selected by the Green Bay Packers with the 212th overall pick in the sixth round of the 2017 NFL draft.[5] On May 5, 2017, he signed a contract with the Packers.[6] On September 2, 2017, he was released by the Packers during final team cuts.[7] He was signed to the practice squad the following day.[8] Amichia remained on the Packers' practice squad for the entire regular season. On January 3, 2018, he re-signed with the Packers.[9]
On September 1, 2018, Amichia was waived by the Packers.[10]
Baltimore Ravens
On October 24, 2018, Amichia was signed to the Baltimore Ravens practice squad.[11] He signed a reserve/future contract with the Ravens on January 8, 2019.[12] He was waived on May 16, 2019.
Carolina Panthers
On May 29, 2019, Amichia signed with the Carolina Panthers.[13] He was waived/injured during final roster cuts on August 30, 2019,[14] and reverted to the team's injured reserve list the next day. He was waived from injured reserve on September 24.
San Francisco 49ers
On December 11, 2019, Amichia was signed to the San Francisco 49ers practice squad.[15] He re-signed with the 49ers on February 5, 2020.[16] He was waived on August 29, 2020.[17]