Pittman was selected with the 32nd overall pick in the 2010 NBA draft by the Miami Heat. On July 16, 2010, he signed a multi-year deal with the Heat. On November 26, 2010, Pittman was assigned to the Sioux Falls Skyforce. On December 18, 2010, he was recalled by the Heat. On January 6, 2011, he was reassigned to the Skyforce. He was later selected to the 2011 NBA D-League All-Star game. Pittman made his NBA debut on April 1, 2011 against the Minnesota Timberwolves. The Heat made it to the 2011 NBA Finals but lost to the Dallas Mavericks in six games.