On 31 August 2016, Damian was signed by Serie C side Como with a season-long loan deal. On 14 September he made his Serie C debut for Como as a substitute replacing Alessio Cristiani in the 76th minute of a 1–0 home defeat against Livorno.[2] On 12 October he scored his first professional goal, as a substitute, in the 92nd minute of a 3–1 home win over Pontedera.[3] On 30 October, Damian scored his second goal, again as a substitute, in the 90th minute of a 2–2 home draw against Olbia.[4] On 7 November, Damian played his first full match, a 3–1 away defeat against Piacenza.[5] Damian ended his loan to Como with 24 appearances, 2 goals and 1 assist.[1]
Loan to Robur Siena
On 17 July 2017, Damian was loaned to Serie C club Robur Siena with a season-long loan deal. On 27 August, Damian made his debut for Robur Siena in Serie C, as a starter in a 1–0 home win against Lucchese, he was replaced by Simone Guerri in the 85th minute.[6] On 3 September, Damian played his first entire match for Robur Siena, a 0–0 away draw against Pisa.[7] On 29 March 2018 he was sent off with a red card in the 93rd minute of a 1–0 away defeat against Pontedera.[8] Damian ended his season-long loan to Robur Siena with 31 appearances.[1]
Robur Siena
On 27 July 2018, Damian joined to Serie C club Robur Siena with an undisclosed fee and a 3-year contract.[9]
Loan to Pordenone
On 31 August 2018, Damian was loaned to Serie C club Pordenone on a season-long loan deal.[10] On 18 September he made his debut for the club as a substitute replacing Simone Magnaghi in the 62nd minute of a 2–1 home win over Fano.[11] On 17 October, Damian played his first match as a starter for Pordenone, a 2–1 away win over Vis Pesaro, he was replaced after 53 minutes by Emanuele Berrettoni.[12] On 24 March 2019, he played his first entire match, a 1–1 away draw against Ternana.[13] Damian ended his season-long loan to Pordenone with 23 appearances, but only 6 as a starter.[1]
Loan to Ternana
On 2 September 2019, Damian joined Ternana in Serie C with another season-long loan with an option to buy.[14] Four weeks later, on 28 September he made his debut for the club as a 75th-minute substitute replacing Marino Defendi in a 2–1 away win over Virtus Francavilla.[15] On 1 December he played his first match as a starter for the club, a 3–1 away win over Catanzaro, he was replaced by Marino Defendi after 69 minutes.[16] On 22 January 2020, Damian scored his first goal for Ternana, as a substitute, in the 92nd minute of a 3–0 home win over Rieti.[17] Damian ended his loan with 15 appearances and 1 goal.[1]
Ternana
On 31 January 2020, he moved to Ternana on a permanent basis and signed a 3.5-year contract with the club.[18]
Loan to ACR Messina
On 14 August 2021, he extended his contract with Ternana until June 2024 and was loaned to ACR Messina for the 2021–22 season.[19]
Loan to Trento
On 1 August 2022, Damian moved on loan to Trento, with an option to buy.[20]
Release by Ternana
On 24 August 2023, his contract with Ternana was terminated by mutual consent.[21]