Meet The Team
Board of Directors
CHAIRPERSON
Amb. Sarah Serem
Amb. Sarah Serem is the current Chairperson of Postbank. She is a seasoned professional with over 35 years of experience in the public sector. Prior to her current role, she held the positions of ambassador of Kenya to China and Chairperson of the Salaries and Remuneration Commission. Amb. Serem holds a bachelor’s degree in Sociology and Political Science from the University of Nairobi, and has extensive expertise in Human Resource Management, leadership, and management.
MANAGING DIRECTOR
Mr. Raphael Mingisian Lekolool
Mr. Raphael Mingisian Lekolool (FCCA, CPA) holds a Master’s degree in Business Administration (MBA) from Cardiff Business School, U.K., a Bachelor of Science degree in Financial Services (Hons) from the University of Manchester Institute of Science and Technology (UMIST) and a Bachelor of Arts (Hons.) degree from the University of Nairobi. Raphael qualified as an Associate of the Chartered Institute of Bankers (ACIB), the U.K. in 2001 and is a Fellow of the Chartered Certified Accountants (ACCA) and a member of ICPAK.
Raphael served as a member of the ACCA (Kenya) Members committee and the Senior Members Advisory Committee. He has also served as the Chair of the Nairobi Chapel Finance Committee for six years. In a career spanning more than two decades in Banking and Insurance. Raphael has gained vast management and leadership experience. He has served in different capacities both in private and public service. Prior to assuming the role of Managing Director at Postbank, he was the Chairperson of the Risk and Audit Committee at the Ethics & Anti-Corruption Commission. He has also served as the Chair of the Interim Management Committee (Board) at the Agriculture Food Authority (AFA) between 2016 and 2017.
At the UAP-Old Mutual Group, Raphael worked as the Enterprise Risk Officer tasked with the key responsibilities of formulation, review and implementation of the Group Risk Strategy programs for businesses in the region. His appointment at the Group preceded his serving at Faulu Microfinance Bank Ltd. where he worked in various capacities and led various teams as the Head of Risk and Compliance, Credit and Internal Audit and served as a member of the Executive Committee (EXCO) whose primary mandate is to oversee implementation of strategy and sustainable business growth. In these capacities, Raphael served as a secretary to various Board Committees.
Raphael has also served as the Head of Quality Assurance Audit at KCB Bank (K) Ltd. and was instrumental in implementing a Risk-based audit methodology in response to the bank’s rapid growth arising from the adoption of technology.
DIRECTOR
Mr. Henry Mutwiri Riungu
Mr. Henry Mutwiri Riungu is a financial professional with over fifteen years of experience. Top on the list of his vast experience is a fourteen-year tenure at the National Treasury in various capacities as Senior Finance Officer, Deputy Head of the World Bank Division and the most recent roles being Chief Investment Officer and Chief Intergovernmental Fiscal Relations Officer. During his tenure at the National Treasury, he was instrumental in ensuring that the resource mobilization function was performed by the Ministry of Finance for the benefit of Kenyans, specifically by reviewing financing and credit agreements for mobilisation grants and donations; facilitating and monitoring the implementation of donor-funded projects and undertaking research on external resources mobilization to inform policy development. Prior to joining the National Treasury, Mr. Mutwiri served as a Prices and Monopolies Officer at the Ministry of Finance, a Procurement Officer at the Office of the President and a Lecturer at Nyeri Technical Training Institute. He currently serves as a Board Member at Postbank. Mr. Mutwiri holds an MBA in Finance from Maseno University, a Post Graduate Diploma in Finance from KCA University and a Bachelor of Commerce degree from the University of Nairobi.
DIRECTOR
PROFESSOR ALLAN KIHARA
Professor Kihara is a professional Trainer, Author, Researcher, A Peer Reviewer and a Mentor. Skilled and enthusiastic lecturer with professional background in strategic management, adept at supervising students’ research (projects/ thesis/ dissertations) at the undergraduate and postgraduate levels, as well as developing curriculum while maintaining a steadfast focus on incorporating various methodologies and new technologies into the classroom. He has passion for fostering collaborative and exciting educational environments that have developed productive, thoughtful, and accomplished college students. Demonstrated record of research and publishing excellence, with numerous research articles indexed in Google scholar, Academia.edu among others, indexed under Allan Kihara.
He holds a Ph.D in Strategic Management from Jomo Kenyatta University of Agriculture and Technology (JKUAT), a Master in Business Administration – Strategic Management from Jomo Kenyatta University of Agriculture and Technology (JKUAT) and a Bachelor of Education (Arts) – Mathematics and Business Studies from Kenyatta University.
Professor Kihara’s career in education and strategic management spans for more the 15 years. He is currently an Associate Professor of Strategic Management at the United States International University-Africa. He has held similar positions in various learning institutions such as, Senior Lecturer in Strategic Management at The Catholic University of Eastern Africa (CUEA), Senior Lecturer and Academic Leader- Business Administration at Kiriri Women’s University of Science and Technology (KWUST) and Jomo Kenyatta University of Science and Technology (JKUAT).
His expertise spreads across managing sales and customer experience having worked at Safaricom as a Customer Experience Executive and at Kenya Commercial Bank Ltd as a Sales Executive.
Professor Kihara is a Chairman and Board member of several boards and committees among them, committee for Chandaria School of Business (USIU-A) accreditation with AACSB, Chairman of Board of Management of Don Orieno Special School in Murang’a County, Board member of St. Paul High School Gathuke-ini in Murang’a County, Chairman- Academic and Quality Assurance Committee, Kirogo Boys Secondary School in Murang’a County, Chairman-Academic and Quality Assurance Committee. He is a member of several professional bodies among them, Curriculum Evaluation and Reviewing Expert at Commission for University Education (C.U.E) in Kenya, Strategic Management Society (S.M.S)-Chicago U.S.A, Science Publishing Group-USA.
DIRECTOR
JACINTA KAMEMBA
Jacinta Kamemba has over 20 years’ experience in Information Communication and Technology (ICT) and Project Management.
Having worked both locally and globally, Jacinta has acquired a great wealth of knowledge and experience in the Information Communication and Technology field, where she has overseen implementation of many digital transformation projects. She has held leadership positions in several institutions which include Global Director of Digitization at World Vision (formally Vision Fund International), Digital finance Expert and IT Advisor at CDR-PAMIGA, Project Manager and IT Change Management Champion at Grameen Foundation and Head of Information Systems (MIS) at Vision Fund Kenya (formally KADET Microfinance) in Tanzania and Kenya.
Jacinta is a Digital Finance Consultant and holds a Bachelor’s of Education Arts from Kenyatta University, Nairobi and a Master in Business Administration – MIS major, from the university of Eastern and Southern Africa Management Institute (ESAMI), Arusha Tanzania. She has undertaken various trainings and attained certification in other areas of the Information Technology field namely, Certified Digital Finance Practitioner, Certification in Product Management for Fintechs, Certification in Leading Money Markets, Certification in Acceleration of Agent Network Management – Core ANA Innovative Product Development in Digital Finance and Risk Management in Digital Finance. Ms Kamemba brings to Postbank a lot of knowledge in governance, having served as a member of several boards, such as Inuka Microfinance Ltd, Association of Microfinance Professionals of Kenya (AMPK), The Centre International de Dévelopement et de Recherche (CIDR) a French based research institute and has been a Leader of the European Microfinance Platform’s digital finance action group – Digital Innovation for Financial Empowerment (DIFE).
DIRECTOR
Samir Abdalla
Senior Management
MANAGING DIRECTOR
Mr. Raphael Mingisian Lekolool
Mr. Raphael Mingisian Lekolool (FCCA, CPA) holds a Master’s degree in Business Administration (MBA) from Cardiff Business School, U.K., a Bachelor of Science degree in Financial Services (Hons) from the University of Manchester Institute of Science and Technology (UMIST) and a Bachelor of Arts (Hons.) degree from the University of Nairobi. Raphael qualified as an Associate of the Chartered Institute of Bankers (ACIB), the U.K. in 2001 and is a Fellow of the Chartered Certified Accountants (ACCA) and a member of ICPAK.
Raphael served as a member of the ACCA (Kenya) Members committee and the Senior Members Advisory Committee. He has also served as the Chair of the Nairobi Chapel Finance Committee for six years. In a career spanning more than two decades in Banking and Insurance. Raphael has gained vast management and leadership experience. He has served in different capacities both in private and public service. Prior to assuming the role of Managing Director at Postbank, he was the Chairperson of the Risk and Audit Committee at the Ethics & Anti-Corruption Commission. He has also served as the Chair of the Interim Management Committee (Board) at the Agriculture Food Authority (AFA) between 2016 and 2017.
At the UAP-Old Mutual Group, Raphael worked as the Enterprise Risk Officer tasked with the key responsibilities of formulation, review and implementation of the Group Risk Strategy programs for businesses in the region. His appointment at the Group preceded his serving at Faulu Microfinance Bank Ltd. where he worked in various capacities and led various teams as the Head of Risk and Compliance, Credit and Internal Audit and served as a member of the Executive Committee (EXCO) whose primary mandate is to oversee implementation of strategy and sustainable business growth. In these capacities, Raphael served as a secretary to various Board Committees.
Raphael has also served as the Head of Quality Assurance Audit at KCB Bank (K) Ltd. and was instrumental in implementing a Risk-based audit methodology in response to the bank’s rapid growth arising from the adoption of technology.
HEAD OF ICT & ALTERNATIVE CHANNELS
Mr. Isaac Mumina Mutua
Mr. Isaac Mutua is an experienced Technologist with over 20-year track record of managing and implementing innovative technical solutions in diverse industries. He holds a Bachelor of Science in Mathematics and Computer Science, Masters in Business Administration MIS/Strategic Management. He holds a number of ICT professional Certifications. He is a member of Kenya Institute of Management (KIM), Fellow of the Computer Society of Kenya (CSK) and sits in several Boards. Prior Experience includes EAPCC Kenya Ltd (Head of ICT), ICEALION Kenya Ltd (Group Head of ICT), Barclays Bank Kenya Ltd (Manager, Technical Support) and KIM (Lecturer, MIS and Management)
HEAD AUDIT
Dr. CPA Calistus Wekesa (PhD)
Dr. Calistus Wekesa is the Head of Audit at Postbank. In this role, he focuses on assurance on internal control and promoting good corporate governance.
Dr. Wekesa has over sixteen years experience, with particular emphasis on financial and revenue accounting, auditing, enterprise risk management, supply chain management, financial regulations, donor-funded project management, business strategies and human capital management.
Prior to his appointment, he served in several organizations amongst them Maseno University (Head Audit, Risk and Compliance) and Agro-Chemical and Food Company Ltd (Chief Audit, Risk and Compliance).
Dr. Wekesa has hands-on experience with ERP system (SAP), Navision Dynamics and TeamMade audit software. He holds PhD (Finance), MSc (Finance) and B.Ed (Accounting and Economics). He also holds a Diploma in HRM (KIM), Financial Risk Certification Programme (UK) and is a member of ICPAK. He sits on various audit committees among them The Bungoma County Assembly Audit & Risk Committee.