Megginson made his debut for Aberdeen in August 2009, playing against Czech Republic opponents Sigma Olomouc in the Europa League.

[2] In April 2010, Megginson joined Second Division club Arbroath on loan until the end of the season.

[3] In March 2011, Megginson joined Brechin City on a one-month emergency loan deal.

On 27 January 2016, he left Rovers for rival Scottish Championship side Alloa Athletic.

In June 2016, Megginson signed a three-year contract with Highland League champions Cove Rangers, a team for whom his father Mike had played for in the 1990s and early 2000s.