Brynde has worked in development policy research in South Africa and Ghana for five years.

She is passionate about using rigorous academic evidence to evaluate, design and implement development policies that improve the lives of people living in poverty. Most recently, Brynde was a research assistant at the Mind and Behaviour Research Group, based in the Centre for the Study of African Economies (CSAE) in Oxford. She has primarily worked on projects relating to labour markets, social protection, education, behaviour and mental health. Brynde's primary research interests are using the tools from applied empirical microeconomics to understand the intersection between human capital and behaviour.

Brynde is an Oxford-Wolfson-Marriot Scholar.