In the 2018–19 season, he scored 21 goals in 34 appearances for Jong FC Volendam, the second team, helping them to a Derde Divisie league title.

[1][3] Halfway through the 2018–19 season, Murkin also made his professional first-team debut for Volendam, coming on as a substitute in a 3–1 loss to Eindhoven in the Eerste Divisie on 18 January 2019.

[4] He scored his first goal for Volendam on 22 November 2019, giving the Palingboeren a 2–0 lead in the 32nd minute, which eventually proved decisive in the 2–1 away victory against Excelsior.

[5][6] Murkin made his breakthrough in the 2020–21 season, as he was repositioned as a left-back under head coach Wim Jonk, due to Gijs Smal's departure to Twente.

[9] He made his debut for Die Königsblauen on 2 September in a league game against Wehen Wiesbaden, replacing Sōichirō Kōzuki at half-time, and providing his first assist nine minutes later in a 1–1 draw.