Career
After signing from Esbjerg in his native Denmark, Billing joined Huddersfield Town in 2013. After performing brilliantly for both the under-18"s and under-21"s, he made his first team début for the club as a substitute in their 2-0 loss against Leicester City at the John Smith"s Stadium on 26 April 2014. His first start for the Terriers came 18 months later in their 2–2 draw against Reading at the Madejski Stadium on 3 November 2015.