Nwuneli's career began in her junior year at The University of Pennsylvania when she held a Summer Business Analyst position with
McKinsey & Company in New York. In 1995, she was offered a full-time position at McKinsey as a
Business Analyst working out of
Chicago, Illinois. She also worked for McKinsey in their office in
Johannesburg, South Africa. Her work with McKinsey in 1997 led to the management and training of police officers across 25 South African Police Service stations, as well as an increase in criminal convictions and a reduction in crime rates.
Work in Nigeria In 1999, Nwuneli worked as the Lead Consultant for
The Ford Foundation on a project focusing on Nigeria's largest microcredit institutions, COWAN and FADU. That year, she rejoined McKinsey and worked on client service teams, consulting for consumer goods companies and large American retailers. In 2000, she resigned from her position at McKinsey and returned to Nigeria as the executive director for the FATE Foundation (founded by Nigerian businessman,
Fola Adeola). In an interview with HBS African America Alumni Association about engaging female entrepreneurs, she explains: "Nigeria has some of the most entrepreneurial people in the world but access to financing, networks, and growth remain a challenge[...] I believe empowering women to start and grow their businesses is critical to Nigeria's development, but educating women is the real silver bullet." In 2002, she founded two nonprofits, LEAP (Leadership, Effectiveness, Accountability, Professionalism) Africa and Ndu Ike Akunuba (NIA), Igbo words which translate in English to life, strength, and wealth. NIA's focus is on female empowerment—inspiring university students in Southeastern Nigeria to live full and meaningful lives. LEAP Africa is a youth-focused leadership development nonprofit organization. LEAP provides training on leadership, ethics and civics. As the founder of the organization, she has been invited to speak at the
UN Commission for Social Development, the
World Economic Forum and the
Clinton Global Initiative. LEAP has worked in partnership with the Ford Foundation, Citi Foundation,
World Bank,
United States Government,
UK Foreign & Commonwealth Office,
ALI (Aspen Institute's Africa Leadership Initiative),
Nokia, and the International Youth Foundation. Nwuneli was LEAP Africa's founder and chief executive officer from 2002 to 2007 and is still an active board member in the organization. Nwuneli's goal is to turn West Africa's food to its new gold by engaging the agricultural landscape and building its ecosystem. Nwuneli was named president and CEO of the ONE Campaign in February 2024, succeeding Gayle Smith on 2 April 2024. On 23 May 2024, Nwuneli was among the guests invited to the
state dinner hosted by
U.S. President Joe Biden in honor of
President William Ruto at the
White House. On the 13 August 2025, the
African Development Fund announced the appointment of Nwuneli as a champion for its 17th replenishment cycle, ADF-17. In this role she is expected to bring a powerful voice and trusted leadership that will help "elevate the fund's visibility, highlight Africa's development priorities, and reinforce the importance of long-term, impactful investment across the continent," according to Valerie Dabady, African Development Bank Manager for Resource Mobilization and Partnerships. ==Other activities==