Goalkeeper, Etheridge began his career at Derby County, but was never included for a senior game. He had loan spells at nearby non-league teams, Ilkeston FC, Gresley FC and Leek Town. In January 2015, he was loaned to League One club Crewe Alexandra for a month.
Starting on 31st of January with their 0-5 defeat to MK Dons at Gresty Road, he was included for five games for the Railwaymen but never took to the field.
In March he went on another months loan to Stalybrige Celtic, playing ten Conference North games.
In June 2015, after his release by Derby, Etherdidge signed for League Two club, Accrington Stanley on a year long deal. He played his first professional game of his career in a 1-2 loss to Bury at the Crown Ground, in the First Round of the Football League Trophy.
In May 2016, Etheridge joined fellow League Two side, Doncaster Rovers on a two year deal