He has worked in various capacities in the past including: Public Finance Manager for the Pan African Federation of Accountants (PAFA) (providing PFM support to PAFA member countries within the African region); PFM Consultant on Trade facilitation to Ministry of Finance, Ghana under the sponsorship of USAID; PFM Consultant providing training on Ghana's PFM Act, 2016 (Act 921) to several institutions in Ghana; PFM Workstream Lead for the Ghana Oil & Gas for Inclusive Growth (GOGIG) programme funded by DFID working to strengthen government institutions responsible for the management of Ghana's oil & gas revenue; PFM Specialist for World Health Organisation in Somalia, Senior Lecturer in Public Financial Management in Liberia, PFM consultant to the Ministry of Finance in Somalia, PFM Consultant to World Bank in Sierra Leone, Technical Advisor to the Ministry of Finance in Liberia under the African Development Bank, Chief Financial Officer of Village of Hope (an NGO that runs an orphanage, clinic, farms and schools); Audit Manager at Adom Boafo & Associates; Accountant at the Kwame Nkrumah University of Science & Technology, and Legal Practitioner at the Law Offices of Kwame Agati.
Williams has been involved in several consultancies on behalf of the Institute of Chartered Accountants (Ghana), African Development Bank, the World Bank, USAID, WHO, DFID, Massim Consult and on his own behalf as an independent consultant. He has provided consulting services in countries such as Ghana, South Africa, Liberia, Somalia, Sierra Leone, and Botswana in the areas of Accounting and Financial Management with emphasis on Public Financial Management, International Public Sector Accounting Standards, International Financial Reporting Standards, and Corporate Governance.
Williams has lectured and served as Examiner/Moderator in Accounting and Law courses in various institutions and universities in Ghana and Liberia including: the Institute of Chartered Accountants (Ghana), the Chartered Institute of Bankers (Ghana), University of Ghana Business School, Methodist University College Ghana, Ghana Institute of Management and Public Administration, All Nations University College, Institute of Local Government Studies, Islamic University of Ghana, Kwame Nkrumah University of Science and Technology, Zenith University College, Centre for Business Studies, University of Liberia, Stella Maris Polytechnic, Liberia Institute of Certified Public Accountants, etc. He has over 20 publications to his credit..
Williams holds a Ph.D. in Business Administration (Accounting) from Capella University, Minnesota, USA; MSc. In Public Financial Management from the University of London; MSc. In Business Administration (Finance) from GIMPA; MA in Economic Policy Management from the University of Ghana; LLB from the University of Ghana; and BSc. Business Administration (Accounting) from the University of Ghana.
Williams is a member of the following professional bodies: Institute of Chartered Accountants (Ghana), Chartered Institute of Bankers (Ghana), Chartered Institute of Public Finance Accountancy (CIPFA), Association of Chartered & Certified Economists, Liberian Institute of Certified Public Accountants, and the Ghana Bar Association. He is a fellow of the following professional bodies: Ghana Institute of Management, Chartered Institute of Taxation (Ghana), and Honorary Fellow of the Institute of Directors (Ghana)..
He serves as the Vice President of the Council of the Institute of Chartered Accountants (Ghana), Chairman of the Board of Governors of Fumbisi Senior High and Agriculture School, member of the following Boards: Tema Oil Refinery, Hope College, Alhet Insurance Brokers Ltd. Massim Farms Ltd. and some private limited liability companies in Ghana. Williams is also member of the IPSAS Implementation Committee of Ghana, and Chairman of the Audit Committee of the Securities and Exchange Commission (SEC). He served previously as a member of the Governing Council of the University of Ghana and Heritage Christian College.