Olina has worked for the Directorate General of Taxes for 17 years with several strategic positions. Starting from STAN and as a Master of Arts in International Relations Graduate of Tsukuba University, Japan, her last position was as Head Section of Analysis of International Tax Regulations for 4,5 years, besides involving as an Indonesia Delegate in various International Agreements. She has also experience as a Head of Finance, HRD.

She has also experience as a Head of Finance, HRD and General Affairs where she was appointed as Coordinator to analyze, and make plans in gathering tax revenue specially for Permanent Establishments in Indonesia and Foreign Investment Companies. Besides that, she experienced as a tax auditor for Local and Foreign Investment Companies and awarded Best Employee with this work, and also experienced as a Deputy Director of General Affairs in a private company. In 2009, she was once again awarded for her dedication and involvement in International Tax Administration and Research from the Director General. Olina is well knowleged in various subjects such as Exchange of Information, International Taxation, Tax Treaties and Transfer Pricing