Tanjo has been with both KPMG and another Big Four accounting firm and private companies since 1986 and was a Partner since 2007. He has assumed Finance and Internal Audit functions in the private industry for a Fortune 500 American Pharmaceutical Firm, biggest retail company and a manufacturing company including the academe. He has been involved in the audits of a number of major international groups and largest domestic corporations, giving him several years of extensive experience in both IFRS and US GAAP issues.