Career
Queens Park Rangers
Harriman made his professional debut on 23 August 2011, in the Football League Cup 2–0 defeat to Rochdale at Loftus Road, coming on as a substitute for Bradley Orr on the 31st minute. Harriman made his Premier League debut on 27 August 2011 in the away defeat to Wigan Athletic after replacing Fitz Hall on the 60th minute. = Street Albans City (loan) On 10 November 2011, he was loaned to Street Albans City on a one-month deal.
= Wycombe Wanderers (loan) On 1 January 2013 he joined League Two side Wycombe Wanderers on a month-long loan deal, extending the loan until the end of the season on 29 January 2013
= Gillingham (loan) On 5 August 2013, Gillingham signed Harriman on loan, initially on a 28-day emergency loan.
This was later extended until the end of the season. Harriman scored his first professional goal on 18 January 2014 against Swindon Town.
= Luton Town (loan) On 9 October 2014 Harriman joined Luton Town on a 28-day emergency loan, this deal was extend by a further two months before Harriman eventually signed for the remainder of the 2014-2015 season. His second goal for Luton came on 2 May in the final game of the season against Stevenage.
= Return to Wycombe Wanderers On 10 July 2015 Harriman rejoined Wycombe Wanderers on loan until the end of January 2016.
On 6 January Harriman"s loan stay was made permanent after Wycombe Wanderers paid an undisclosed fee to parent club, Queens Park Rangers. Harriman has signed a three & half year deal to run until 2019.
