Career
Aston Villa
Born in Kettering, Northamptonshire, Jaszczun started his career as part of the Aston Villa youth team He rarely managed to get into the first team setup, playing just once as a substitute in a League Cup tie with Chelsea, and was sold on to Blackpool for a fee believed to be £50,000. Cambridge United
Following a loan spell, Jaszczun joined Cambridge United in July 2006.
However he was forced into retirement in March 2007 as he had been sidelined since November with a toe injury and has been unable to return to training despite an operation and prolonged rehabilitation.
Kettering Town
Jaszczun came out of early retirement to play for his hometown side, Kettering Town. He was manager Mark Cooper first signing in May 2007.
Jaszczun was released by the club in March 2009. Corby Town
Following his release from Kettering Town, Jaszczun joined Conference North side Corby Town.
Kettering Town again
Jaszczun rejoined The Poppies for a second spell in May 2010 as a player coach.
After just six months Jaszczun quit the club after he was asked to take a wage cut. Corby Town again
On 17 January 2011 it was confirmed that Jaszczun had rejoined The Steelmen. Whitworth
In 2013 Jaszczun was appointed player/assistant manager at United Counties League side Wellingborough Whitworth.