Career
He has had a year training in Brazil at Tigres Do Brazil from August 2007. He started his professional career at hometown club América Managua and had a stint with Walter Ferretti before suddenly leaving for the United States in 2011. In January 2012, Mejía returned to Nicaragua, signing for Diriangén.
Mejía made his debut for Nicaragua in a February 2007 UNCAF Nations Cup match against Guatemala and has, as of December 2013, earned a total of 5 caps, scoring no goals.
He has represented his country at the 2007 UNCAF Nations Cup and was a non-playing squad member at the 2009 CONCACAF Gold Cup. His most recent match was a September 2010 friendly match against Guatemala.