As an economist, Catlyne is involved in the writing of various reports and is responsible for providing original quantitative analysis for the Coalition for Urban Transitions.

Catlyne previously worked as a researcher at the Overseas Development Institute (ODI), and as an economist at the Department for International Development of the French Minister of Foreign Affairs. She also has work experience in Sub-Saharan Africa. Catlyne holds a MPhil in Development Economics from the Centre for Studies and Research on International Development.