Moghalu joined the
United Nations in 1992. He served in political, legal, and external affairs assignments at duty stations in
Cambodia, the United Nations headquarters in New York,
Croatia, and Tanzania/ Rwanda. His first assignment was as a UN human rights and elections officer with the United Nations Transitional Authority. A year later, he was appointed political affairs officer in the department of peacekeeping operations at the UN Headquarters in New York. From 1996 to 1997, he served in the former Yugoslavia as political advisor to the special representative of the UN Secretary-General in Croatia. Kingsley was then assigned as legal adviser to the United Nations
International Criminal Tribunal for Rwanda (UNICTR) in Arusha, Tanzania, in 1997 and later promoted to the role of the international tribunal's spokesman. As special counsel and spokesman, he was responsible for policy development, strategic planning and external relations. The UNICTR delivered the first-ever judgement by an international court on genocide. In 2002, Moghalu was appointed to the
World Health Organization in Geneva, Switzerland, as head of global partnerships and resource mobilization at
The Global Fund to Fight AIDS, Tuberculosis and Malaria (GFATM), a public-private international development finance organization and social investment fund with $20 billion in assets and investments in 140 developing and middle-income countries. He was a member of the Global Fund's senior management group that set corporate strategy, a member of the risk management committee, and was promoted to the rank of director in 2006. The Governing Board of
The United Nations Conference on Trade and Development (UNCTAD) in Geneva,
Switzerland appointed Kingsley Moghalu, in 2017, as a member of its high level Independent Expert Group on Financing for Development. The Expert Group reviewed and made recommendations on how to better achieve the Sustainable Development Goals and effective domestic resource mobilization for development in developing countries. Moghalu resigned from the United Nations in December 2008. He then founded
Sogato Strategies S.A., a global strategy and risk consultancy, in Geneva.
Umaru Yar'Adua, President of the Federal Republic of Nigeria (2007–2010), appointed Moghalu deputy governor of the
Central Bank of Nigeria in November 2009. Moghalu was the deputy governor for Financial System Stability and supervised the execution of reforms in Nigeria's banking sector after the
2008 financial crisis. He also served as deputy governor for Operations, with supervisory responsibility for currency and branch operations, payment systems, and the management of Nigeria's foreign reserves of $37 billion. He led the rollout of payment systems reforms, including the development and introduction of the unique identifier Bank Verification Number (BVN), that enabled the growth of a thriving
Fintech industry. Moghalu was a member of the Monetary Policy Committee (MPC), the Committee of Governors (CoG), and the Board of Directors of the CBN, and also served as a member and representative of the CBN in the Economic Management Team of president
Goodluck Jonathan. He served as the Chairman of the Boards of Directors of the Nigerian Export-Import Bank (NEXIM) and the Financial Institutions Training Centre, and as a member of the boards of the
Asset Management Corporation of Nigeria, Securities and Exchange Commission (SEC), and the Kuala Lumpur-based Alliance for Financial Inclusion (AFI). He also represented the CBN as a member of the Board Executive Committee of the International Islamic Liquidity Management Corporation, headquartered in Kuala Lumpur. In 2014, Kingsley Moghalu delivered the
Thomas Hodgkin Memorial Lecture at the
University of Oxford. On 8 May 2023, Moghalu delivered the 30th Anniversary Founders' Day Lecture of the African Export-Import Bank
Afreximbank at the Bank's Headquarters in
Cairo, Egypt. On 16 October 2024, the newly established
African School of Governance (ASG) University, Kigali, Rwanda, appointed him as the inaugural President (Vice-Chancellor) of the institution. ==Controversies==