[1] Nicolson started his career rising through the youth ranks at Inverness Caledonian Thistle, before joining the first team on 1 July 2021.
Nicolson made his first team debut on 29 January 2022 coming on as a late substitute for Cameron Harper in a 1–0 away loss to Kilmarnock.
[2] On 16 August 2022, Nicolson moved to Elgin City on a half season loan, making his debut a few days later in a 2–2 draw at home to Stranraer.
[3] On 29 October 2022, Nicolson received his first red card of his career, coming in the 7th minute of a 2–1 away defeat to East Fife.
[5] He made his return to the team the following day, coming on in a 6–1 home win over Cove Rangers in the Scottish Championship.