2012-2014, PT. IBM INDONESIA (COUNTRY TAX MANAGER)
2010-2012, PT. BUCYRUS INDONESIA (TAX MANAGER)\\\\
2009-2010, PT. PERTAMINA PERSERO) (SENIOR ASITEN PPN)
2000-2009, PT. IBM INDONESIA (SENIOR TAX ANALYSIS)
1999-2000, PT. TOYYO KANETSU INDONESIA (ACCOUNTING MANAGER)