Jamie Slabber trained with both Norwich City and Cuffley before joining Spurs according to the Official Spurs website.

A native of Enfield, Jamie made his first team debut for Spurs at home to Liverpool on 16th March 2003. He fell behind in the pecking order during 2003/4 with Spurs signing Kanoute and Defoe. Along with fellow striker Ben Bowditch, Jamie was loaned to Danish side AB for three months in March 2004 but returned hoping to break back into the first team.

Jamie struggled with injuries at the beginning of 2004/5 but made an impressive return to form for the reserves. However the performances of Defoe, Keane and Kanoute meant that opportunities would be limited and on 31st December 2004, he joined Swindon Town on loan for the remainder of the season.

At the beginning of April 2005, Jamie signed for Aldershot until the end of the season. Despite scoring in the Conference play-offs, Jamie was released by the Shots in May 2005.

On 16th July 2005, Jamie scored the winner for Grays Athletic in their pre-season friendly with Colchester United. He has also been on trial with Bristol Rovers but signed for Grays at the end of July.

Impressive form for the high-flying Grays side saw Jamie called up to the England National Game side at the beginning of November 2005. He was named the Conference player of the month for October 2005

In November 2006, Jamie was loaned to Oxford United. The following month., he signed for Stevenage. He was released by the Hertfordshire side in May 2007.

After a trial with Rushden & Diamonds, Jamie was part of a triple signing by Blue Square South side Haveant and Waterlooville on 23rd July 2007 along with former QPR forward Leroy Griffiths and Newport (IOW) winger Michael McEnery

After making 41 appearances for Havant, Jamie was released towards the end of October 2008 so to free up wages for the club to bring in Braintree Town midfielder Robbie Martin. Jamie then re-joined Grays Athletic.

At the end of December 2009, Jamie signed for rivals Woking until the end of the 2009/10 season. He came off the bench to make his debut for the Cards in their 2-0 win over Havant & Waterlooville on New Year's Day. He was released by Woking at the end of the 2009/10 season but shortly afterwards, signed for Eastleigh.

In March 2012, Slabber joined Chelmsford City. He played 39 times for Chelmsford scoring 23 goals.

It was announced on 8th May 2013 that Slabber had joined Sutton United for the 2013–14 season.

In the summer of 2014, Slabber signed a two year deal with Bromley despite having a year remaining on his Sutton contract. In an interview with the Non League Paper on 13th July 2014, Slabber admitted it was the financial implcations of the move that encouraged him to join Bromley.

In July 2015, Slabber signed for Conference South side Hemel Hempstead Town. On 1 March 2016, Slabber signed for Conference South side Sutton United on loan until the end of the season.

He moved to Welling United in the summer of 2016. The following summer, he moved back t Grays.