Miller joined Newquay and enjoyed great success including breaking the South Western League goals conceded record under manager Trevor Mewton.
[citation needed] Miller was then signed by Terry Cooper (ex Leeds and England) for Exeter City where he was a key figure in their Fourth Division Championship winning team, before following Cooper to Birmingham City, Crystal Palace, Barnsley, Bristol Rovers and Derby County (on loan), over an eighteen-year period.
[4] He initially retired from football in August 2005, but in February 2006 he was signed by Southampton manager George Burley, whose side was short on goalkeepers, with Bartosz Białkowski out with an injury, Miller was seen as cover for Paul Smith.
[citation needed] Returning to non-league football, Miller joined Bodmin Town in October 2007.
[citation needed] Miller was appointed as Exeter City's goalkeeping coach on 9 December 2022, to work under new manager Gary Caldwell.