Background
Tillson is the son of former football player and Exeter City first team coach Andy Tillson.
Tillson is the son of former football player and Exeter City first team coach Andy Tillson.
Exeter City
Tillson made his professional debut for Exeter on 3 May 2014 in a 2–0 victory over Hartlepool at Victoria Park in League Two. Tillson signed a new contract in May 2014. On 2 September 2015, Tillson captained Exeter in a 2–0 victory over Portsmouth in the Johnstone"s Paint Trophy.
= Gloucester City In August 2012, Tillson joined Gloucester City on an initial one-month loan.
His loan was extended by a further month in September. = Chippenham Town In February 2013, Tillson, along with Jake Wannell, joined Chippenham Town on a one-month loan.
In August 2013, he rejoined the Bluebirds on another one-month loan. = Weston-super-Mare In March 2015, Tillson joined Weston-super-Mare on a one-month loan.
Tillson scored an own-goal in the match against Basingstoke Town.
He scored his first goal for the Seagulls in a 2–1 defeat to Concord Rangers.