Shearer graduated from Edinburgh Napier University with a BA (Hons) degree in Journalism.
[1][2] After her graduation at Napier University in 2003, Shearer moved to London and joined BBC Radio 5 Live as a journalist and producer for the station's flagship news programmes - 5 Live Breakfast, Drive, The Midday News, and Weekend Breakfast.
She later moved to Cardiff, working for BBC Radio Wales as a co-presenter for the Saturday afternoon sports show Sportstime and a producer on the station's entertainment, music and features output.
Shearer currently presents Reporting Scotland's breakfast bulletins on weekdays and is a stand-in anchor for the main 6:30pm evening programme.
In May 2021, Shearer revealed on Twitter she would be leaving BBC Scotland after 16 years.