Alexander was born in Middlesbrough,[2] and despite receiving offers of a traineeship from Wolverhampton Wanderers and Burnley, began his football career in the youth system of Darlington in June 2002.[5] He was included among the substitutes for the Division Three match against Carlisle United on 27 August, chosen in preference to the injured Danny Mellanby and the out-of-form Mark Sheeran, but remained unused.[6] The 16-year-old Alexander was given his debut the following Saturday, as a second-half substitute in the visit to Kidderminster Harriers. He entered the game together with Neil Wainwright and Phil Hadland just after the home side had taken a lead, and the energy of the fresh players helped Darlington exert enough pressure to draw the match.[7]
A trial with Premier League club Blackburn Rovers, in which he scored twice for their under-17 team against Tottenham Hotspur under-17s, came to nothing,[8] and Alexander made no more first-team appearances before December, when he joined Northern Premier League club Bishop Auckland on loan.[9] He returned to Darlington's first team in December 2003, when he made three appearances, each time as a late substitute.[10] After another brief loan spell with Bishop Auckland,[11] Alexander was released in April 2004 and signed for Billingham Synthonia.
He scored on his Northern League debut, against Dunston Federation,[12] and finished the season with the club. He then took up a place at Stetson University, in DeLand, Florida, where he played college soccer for the Stetson Hatters.[13] He helped them reach the 2004 Atlantic Sun Conference post-season tournament,[14] but was sent off in the quarter-final match which the Hatters lost after two periods of overtime.[15] He returned to Billingham Synthonia in January 2005,[16] and took his total appearances for the club to 18, with two goals.[17]
Alexander signed for Marske United in January 2006,[18] and was Billingham Town's top Northern League scorer in 2008–09 with 21 goals.[19] He joined Conference North club Blyth Spartans ahead of the next season, and scored six goals from 56 appearances in all competitions for them over two seasons.[20] He then signed for Northern League champions Spennymoor Town, but only four weeks into the season and having scored four times already, he was transfer-listed and returned to Blyth.[21] After four more games for Blyth, and a loan spell with Ashington during which he played once, in the Northern League Cup, Alexander signed for fellow Northern League club Norton & Stockton Ancients.[22] In March, he made a sideways move to Newcastle Benfield,[23] where he finished the season.
In 2012 pre-season, Alexander had a trial with former club Darlington, who had lost most of their players after administrative demotion to the Northern League, but no contract ensued,[24] and he remained with Benfield until rejoining another former club, Marske United, in another sideways move in October.[25] He was their top scorer in 2013–14 with 21 goals in all competitions, 14 in league matches,[4] and started in the Northern League Cup final as Marske beat Whitley Bay 2–1 after extra time.[26] In October 2014, he joined yet another Northern League club, Crook Town.[27]
