Despite performing well on trial with teams such as Vfl Wolfsburg,[2] Williams was unable to secure a contract, and returned to the United States in 2009.

He played with the Carolina Dynamo of the USL Premier Development League, earning All-Eastern Conference honors after scoring six goals and 16 points in 12 games.

After training with Major League Soccer club Real Salt Lake during the latter half of 2009 and early 2010,[3] Williams turned professional in 2010 when he joined the Harrisburg City Islanders in the USL Second Division.

[8] In July 2015, Philadelphia traded Williams, along with an international roster slot, to Houston Dynamo in exchange for allocation money and future considerations.

[14] Williams played with the US National U-17 team from 2005 to 2007, and was a member of the United States squad at the 2007 CONCACAF U17 Tournament and the 2007 FIFA U-17 World Cup in Korea.