 Wildig was born in Hereford, and began his career at Cardiff City, making his way through the club's youth system, including captaining the under-18 side.In April 2009, Wildig signed a professional contract at the club, before going on to make his professional debut at the start of the 2009–10 season, replacing Miguel Comminges during a 3–1 win over Dagenham & Redbridge in the first round of the League Cup on 11 August.He made two more appearances in the competition for Cardiff, in the second round win over Bristol Rovers and the third round defeat to Aston Villa.