Nicknamed "el Negro", Mayén made his debut for El Salvador in an April 1991 UNCAF Nations Cup qualification match against Nicaragua and has earned a total of 36 caps, scoring no goals. He has represented his country in 6 FIFA World Cup qualification matches and played at the 1991, 1993, 1995 and 1997 UNCAF Nations Cups as well as at the 1996 CONCACAF Gold Cup