Atty. Wiiliam B. Kollie, Sr. has worked in various fields including education, banking, security, humanitarian work, and judicial education. In education, he has taught in Liberian schools for nearly 25 years at all levels (primary, secondary, & tertiary). In banking, he served in the capacities of cash officer and loan officer for 6 years at the then International Trust Company of Liberia (ITC), now International Bank (Lib.) Limited. In the field of security, Atty. Kollie served for a short while as criminal investigator with the Liberia National Police (LNP) in the mid-90s. In the field of humanitarian work, he served the United Nations High Commissioner for Refugees (UNHCR) as Protection Assistant for 4 years. In judicial education, he has served the James A. A. Pierre Judicial Institute for 7 years, beginning with the post of Training Officer, and now Training Coordinator of the Institute. As Training Coordinator, Atty. Kollie provides oversight and coordination for all training programs of the Institute, including planning, organizing and implementing training programs. For the past 2 years, he has performed the duties of Deputy Executive Director of the Institute due to the elevation of the Deputy Executive Director to the post of Acting Executive Director.

Atty. Kollie has earned several Certificates including Certificate in International Protection Services (The Protection Learning Programme – PLP), conducted by the Department of International Protection Services (DIPS), United Nations High Commissioner for Refugees, Geneva, Switzerland (2006); Certificate in Customary Law and Land Tenure in West Africa, at a regional judicial conference which brought together judges, magistrates and other senior judicial personnel from West African Countries, held in Cote D’Ivoire (2012). He has played leadership roles in many organizations, including President of the Margibi Bar Association, a local chapter of the Liberian National Bar Association (LNBA), a position he still holds.