 Dubois turned professional in 2009 with the Western Mass Pioneers, and made his pro debut on April 25, 2009, in Western Mass's 3-1 opening day defeat to the Harrisburg City Islanders.He scored his first two career goals on June 5, 2009, in a 2-1 win over Crystal Palace Baltimore, and went on to play in 20 league games for the Pioneers, but was released at the end of the year when the Pioneers self-relegated to the PDL.Having been unable to secure a professional contract elsewhere, Dubois returned to play for the New Hampshire Phantoms in the USL Premier Development League in 2010.