He is founder and Partner of JJS. He is a member of Indonesian Institute of Certified Public Accountants (IAPI), a member of Institute of Indonesia Chartered Accountants (IAI), a member of ASEAN Chartered Professional Accountant Coordinating Committee. He has been licensed with Capital Market and Non-Bank Financial Industry (OJK) and certified with The Audit Board of Republic of Indonesia (BPK) and Certified Financial Investigator (CFI). He involves in Professional activities such as member of Indonesian Auditing Standards Board.

He has over 42 years of experience in auditing, accounting and advisory services, also involve in many assignments covering internal control review, reporting compliance, agreed upon procedures and due diligence, and has extensive assurance experiences in construction, manufacturing, mining, plantation, oil and gas, hotel management, hospital, trading, textiles, professional services and other sectors.