• Trainee Announcer (trained under Benjie Castro, son of  the broadcast pioneer Angelo Castro Sr and younger brother of Angelo Castro Jr of The World Tonight (ABS-CBN/TFC)

• News Editor/Newscaster

• Staff Announcer

• News Director for both AM/FM Stations
• Disc Jockey (concurrent capacity on DzBM-FM) and was known by the on-air name of "TOM MULLER". The radio name was given by Jun Villar of Villar Records.

DzXL-AM (Radio Mindanao Network)

• Network Newscaster
• Staff Announcer (fellow announcers at that time were Mel Tiangco, Bobby Guanzon, Ike Lozada, Fiorel Salvo & Ely Cruz Ramirez)

DwKY-FM (Mabuhay Broadcasting System)

• Disc Jockey (aka Sonny Bluebird). Anchored the morning primetime slot that helped the station reach #3 of the top FM stations based on listernership survey.
• Special Projects Director

DwIZ-AM (Philippine Broadcasting Company)

• Program Host - "Late Night Radio Show"

• Columnist - "Problems & Reactions"

Miscellaneous Magazine

• Columnist - "Body & Soul"

• Voice-over announcer - National Spelling Bee Contest Finals
• Emcee -
  Mall Tours of recording artists