William Djiwantoro

William Djiwantoro is a seasoned tax professional with extensive experience in tax advisory and compliance roles across various sectors. Currently serving as a Senior Tax Advisor at Sigma Healthcare since November 2023, William previously collaborated as a Tax Accountant Lead at EnergyAustralia and held positions as a Tax Analyst at Medibank and a Group Tax Accountant (Contractor) at Australian Unity. Earlier career highlights include contributions at Colonial First State Global Asset Management, Tabcorp, and Saward Dawson, where responsibilities ranged from preparing tax returns to conducting financial audits. William holds a Graduate Diploma in Chartered Accounting, a Diploma of Australian Taxation Law, and a Bachelor of Commerce in Accounting and Finance from the University of Melbourne.