Charles Nsiah is a determined individual with interdisciplinary knowledge. Charles has over 16 years’ worth of professional experience in accounting and financial management. He completed his professional accountancy qualification (ACCA) in 2007 and has been a fellow member of the ACCA since 2012. He is also a member of the Institute of Chartered Accountants, Ghana (ICAG) since 2012. He has a Doctor of Philosophy degree in Business and Management (Accounting Option) from Kwame Nkrumah University of Science and Technology, Kumasi (KNUST); an MBA in Financial Management from the University of Exeter, UK; a first-class honours bachelor's degree in Accounting and Finance from London South Bank University.

Charles has a vast experience in public sector accounting and financial management – preparation of financial statements under IPSAS, design and implementation of financial controls in line with the Public Financial Management Act, budget preparation and monitoring, project financial management as well as staff management and system improvement. Charles played a key role in the first-time adoption of IPSAS by KNUST in 2019 and led a team to revise the KNUST Accounting Policies and Procedures Manual to be IPSAS compliant.

He has been a full-time staff of KNUST since the year 2010 and has held various positions within the University as Head of Payables, Ag. College Finance Officer – College of Engineering, Ag. College Finance Officer – College of Humanities and Social Sciences, Institute Finance Officer- Institute of Distance Learning, and currently Deputy Finance Officer and the College Finance Officer for the College of Health Sciences. Aside from full-time accounting work at KNUST, Charles developed MSc in Industrial Finance and Investment. A demand-driven programme that has run successfully at KNUST-IDL since 2012. Charles has been offering lecturing services on a part-time basis at the postgraduate level at the Institute of Distance Learning (IDL), KNUST, since 2012 and has supervised several MSc/MBA theses.

Currently, Charles Nsiah is the Audit Committee Chairman for Asokore Mampong Municipal Assembly and the immediate past Audit Committee Chairman of Effiduase Government Hospital both in the Ashanti Region. A member of the Church of Christ Mission Hospital Board, Bomso and the Chairman of the Finance sub-committee of the board. He has also served as a member of the Governing Board of Agogo Presbyterian Women's College of Education.