1.  November 17, 1997 – Present: INFORMATION TECHNOLOGY OFFICER II. Department of Health (Management Information System Division-Management Advisory Service).

2.  June 3, 1996 – April 15, 2001: PART-TIME COLLEGE INSTRUCTOR. (Computer Science Department): East Asia College of Information Technology (Project Management, Systems Analysis and Design, Database Management and Administration).

3.  June 1, 1991 – November 16, 199: INFORMATION SYSTEMS ANALYST III. Department of Health (Management Information System Division-Management Advisory Service).

4.  June 1993 - December 1993: PROJECT CONSULTANT. – Eastern Europe (Hungary, Poland, Czech): MISNet Inc., Implementation of Route Sales Accounting System for Pepsi Cola.

5.  September 1, 1989 - May 31, 1991: EDP SYSTEMS ANALYST. Department Of Health (Management Information System Division-Management Advisory Service).

6.  September 1, 1988 - August 31, 1989: COMPUTER PROGRAMMER. Department of Health (Management Information System Division - Management Advisory Service).

7.  November 3, 1982 - August 31, 1988: TRAINING DIRECTOR. Datapro Computer School.

8.  March 23, 1982 - June 11, 1982: JR. INDUSTRIAL ENGINEER. SO-EN Garments Incorporation (Araneta Avenue, Quezon City).