Douglas began his career with Luton Town as a youth player, going on to make 146 football league appearances for the club.
[4] Prior to the 2009–10 season, Douglas was forced to undergo surgery to insert titanium plates into his neck to fix prolapsed discs in his spine.
[5] Following the operation, he was unable to regain his place in the Bath City side and instead joined Conference South leaders Newport County in February 2010 in a loan exchange deal with Dave Gilroy.
[7] He made a total of six appearances during his loan spell, scoring his only goal during a 5–1 win over Basingstoke Town, before returning to Bath in March 2010.
At the end of the season, with Bath winning promotion to the Conference Premier, Douglas was released, and in August 2010, following a successful pre-season spell, he signed for Dorchester Town.