[1][2][3][4][5] Mooniaruck was a member of the youth team at Norwich City, before signing for Manchester United on 3 March 1999 at the age of 13; United attempted to get around the rule that youth team players had to live within 90 minutes of the club by flying him to Manchester from Stansted Airport, and although the Football Association later clarified that it had to be a 90-minute drive, Mooniaruck remained at United.
[6] He was released in June 2003[7] without a single appearance for the first team, despite playing for England U-20 in a friendly match against Germany U-20.
[8] After his release, Mooniaruck had unsuccessful trials with Rotherham United, Queens Park Rangers, Grimsby Town, Wycombe Wanderers, Swindon Town, Sheffield Wednesday and Leyton Orient,[6] before signing for Braintree in August 2003.
He was released early in 2004 after the club stated that his skills and style of playing were not suited for the Isthmian League.
In August 2006 Kalam joined Cambridge City, before moving to Thurrock in January 2007 and signing for Saffron Walden Town before the end of the season when he announced retirement to become a coach for a David Beckham's football school.