Christofi was born on September 28, 1988, in Paralimni. He started his football career at Onisillos Sotira. In 2007, he transferred to EN Paralimni and in 2008 to Omonia. In the summer of 2013 he went abroad to play for Swiss side FC Sion but returned to Omonia two years later. In the summer of 2020 Christofi transferred to Anorthosis.