Meet the team

The TIWB Secretariat performs the match-making function of Experts, operates a database of qualified Experts, promotes the Programmes, monitors and evaluates deployments and produces tools to support the process. Additionally, the TIWB Secretariat supports and reports to the Governing Board.

 James Karanja

Head of TIWB Secretariat

2, rue André Pascal
75775 Paris Cedex 16, France 

Tel: +33 1 45 24 64 16

James Karanja is passionate about managing projects and capacity building as a means to foster development and sustainable growth.  He is a lawyer by profession and holds a Bachelor of Law from the University of Nairobi and is due to complete his Masters in Public Policy and Management from Strathmore Business School in Kenya. Mr. Karanja has previously served as Head of International Tax Office within the Kenya Revenue Authority (KRA) with over twelve years of experience in tax administration, policy and capacity building. He has been instrumental in promoting compliance with the international standards on exchange of information in Kenya and the East Africa region.

Mr. Karanja chaired the Africa Tax Administration Cross Border Taxation Technical Committee responsible for the Africa global tax agenda that was instrumental in the adoption by the G20 of the Inclusive Framework on Base Erosion and Profit Shifting that allows developing countries to participate in tax policy decision-making.


Gail Hurley

Project Manager & Policy Specialist, UNDP

FF-961, 304 East 45th Street
New York, NY 10017, USA

Tel: +1 212-906-6367 

Gail Hurley is the UNDP Project Manager for the joint UNDP-OECD initiative Tax Inspectors Without Borders. She is a Policy Specialist on Development Finance at the United Nations Development Programme (UNDP) in New York. She has held this role since January 2010. Gail led UNDP’s preparations for the July 2015 UN conference on financing for development in Addis Ababa, Ethiopia and helps to formulate UNDP’s corporate policies in development finance. Gail has written numerous research papers, articles and regularly blogs on the subject. Her areas of expertise and interest include: sovereign debt (with a particular focus on small island developing states), aid policies and aid delivery, innovative sources of development finance, international public finance, domestic resource mobilisation (including tax policies) and private financial flows. At the country level, she has supported governments in the Caribbean and Africa to devise strategies for the expansion and diversification of domestic and external revenue bases, including through innovative financing approaches. Most recently, she has been exploring strategies to catalyse public and private investment in the ‘blue economy’ in small island states.

 Melanie Mathis

Programme Assistant, TIWB Secretariat

2, rue André Pascal
75775 Paris Cedex 16, France 

Tel: +33 1 45 24 81 94

Melanie Mathis joined the TIWB Secretariat in July 2016. She is responsbile for the TIWB back-office, including the construction and maintenance of the TIWB website and database, operations management, technical assistance. She is bilingual in English and French and leads the social media outreach for Tax Inspectors Without Borders. 

Ms. Mathis holds a Bachelor of Arts from New York University and is Programme Assistant for the TIWB Initiative.  Her professional experience includes working as a Legal Assistant and Office Manager for an international law firm in Beverly Hills, California, as well as previously Cultural Affairs Coordinator for New York University in France.