Regional Team Biographies


Ousmane Maiga

Country Representative: Mali

Ousmane Maiga is Oolu’s Country Representative in Mali. His academic and professional background is in finance and accounting and he has extensive experience in motivating big teams. Maiga has over 15 years of experience in rural regions in Mali working for some of the world’s largest distribution companies like Bramali, Coca Cola and British American Tobacco. He made his mark in the solar industry through NOTs Impact Enterprises, the largest sellers of solar lights and home systems in the region. He speaks French, English, Bambara et Sonhai.


Marieme Ba

Head of Sales and Marketing Department

Marieme Ba is the Head of Sales and Marketing at Oolu. Trained in the sector in France, she has over 6 years experience in a management role promoting some of the largest brands in West Africa. She began her career at Tigo Senegal (second largest telecom brand), moving to Harvas Media Senegal focusing on market penetration and expansion and finally was recruited as the lead sales and marketing manager for INASEN overseeing teams selling Jongue products (one of the largest brands in the region) in over 5 countries in West Africa.


Nicolas Missadji

Head of Accounting Department

Nicolas Missadji is Oolu's Head of Accounting. Trained as Director of Administration and Finance, Professional Auditor, and Chief Accountant. Previously Chief Accountant at Novasen, former Director of Administration and Finance at AGIR Foundation for Education and Health, former Director of Administration and Finance at Forever Living Products Senegal. He has knowledge of French and US accounting standards, has managed large accounting teams in across different offices and 5 countries, has generated financial projections, created budgets, and has done reporting on company activities for government, management, and investors.


Anneka Nelson

Head of Operations Department

Anneka Nelson is the Head of Operations at Oolu, where she oversees sales, client repayment and after-sales-service across Oolu’s field offices in Senegal. Prior to joining Oolu, Anneka served as a Kiva Fellow in Thies and Dakar, Senegal where she worked with local microfinance institutions to expand their ability to provide high-impact loans to the rural poor. Anneka also spent nearly four years as the Business Development Manager for a Portland, Oregon-based law firm. Anneka is fluent in French and graduated cum laude from Bowdoin College in Brunswick, Maine.


Ousmane Gueye

Head of Logistics Department

Ousmane Gueye is Oolu's Head of Logistics. He was trained as a controller at the School of Management in Senegal, he worked as an accountant at the Senegalese Rural Electrification Agency (ASER), managed logistics at Sonatel (largest telecom brand) and oversaw a team of 17 as logistics manager at Wari. He lead  international expansion for logistics at Wari to Mali, Conakry, and other Francophone WA countries, and has experience dealing with port authorities and negotiating with transitaires (private port agents). His studies in internal control processes allow him to perform cost-benefit analyses and think strategically about expansion, regional offices, and repairs.


Beatrice Teixeira

Head of Human Resources Department

Beatrice Teixeira is the Head of Human Resources at Oolu. She is the former HR Manager at SLAT (Senegalese logistics company) and the former top recruiter at PRAXIS (recruiting firm and temp agency). At PRAXIS, she managed interpersonal relationships, has completed trainings in “keeping the peace” at the workplace, has acquired strategic perspective to anticipate hires, has built waitlists for every non-management position and has learned how to optimize employee contract strategy. Bea was also the main force behind hiring the early Wari team in Senegal and she played a major role in revamping and hiring agents at the Wari call center.

Thebean Gilfillian

Finance Officer

Thebean Gilfillian is a Financial and Business Analyst at Oolu. Thebean began his career with HSBC working with SME financing and OTC Derivatives before moving to a London-based Merchant Bank where he advised technology sector startups and SME’s on Strategy, M&A and Corporate Finance. Previous to Oolu, Thebean led Advisory Services at a Senegalese family office and managed Finance and Business Development for portfolio companies. Thebean holds a MA (Hons) in Economics from The University of Edinburgh and has passed the first two levels of the Chartered Financial Analyst program.