May 2005 – August 2005
Trouble Shooting and Repair on  Steam Control System (SCS) Unit I – Darajat Field, PT CHEVRON  INDONESIA.

December 2002 – June 2003
Electrical Engineering Design on the Cooperation Project beetween Bandung Institute of Technology (ITB) and PT. PLN on The Mending and Updating of Data Base System of  20 kV Electrical Network on ex-Branch Gambir – Jakarta.

September 2000 – December 2000
Trouble shooting on Butane Sales-Facilities Telemetering System at UNOCAL Indonesia.
Collaborating with The Foundation for Research & Industrial Affiliation, Bandung Institute of Technology (LAPI ITB) to support in technical fields.

June 2000 – July 2000
The Commissioning and Testing for The Connecting of Geothermal Power Plant to The Transmission Grid 150 kV at Amoseas Indonesia Inc.

Collaborating with The Electric Energy Conversion Research Laboratory – Bandung Institute of Technology (LPKEE ITB) to support with specialization in measurements.

March 1994 – September 1995
The Research Project of Improvement of Power Quality at RCTI Head Quarter Jakarta.
Collaborating with The High Voltage and Electrical Measurement Laboratory – Bandung Institute of Technology (ITB) to support with specialization in technical fields.