Career
Born in Milan, Lombardy, De Filippis started his career at Internazionale, which he played from Giovanissimi Regionali (under-15 team) in 2001-2002 to Primavera under-20 team in 2006-2007 season. He then played for the first team from 2008 to 2010. In 2010 the club relegated back to Serie Doctorate and folded soon after.
He then joined Serie Doctorate team Viterbese.