Benjie received a BA in Biological Sciences from the University of Oxford, focusing on animal behaviour, ecology, and conservation. His undergraduate theses sought to understood biogeographical drivers of endemism and to investigate approaches to the problem of ecosystem disservices. He then studied for an MSc at Imperial College London, focusing on environmental economics and policy. His research focused on the role of sovereign green bonds as a market catalyst and on corporate prioritisation of action on the Sustainable Development Goals.

Alongside his DPhil, Benjie is working as an Environmental Research Analyst at Osmosis Investment Management, a London-based sustainable investor. Osmosis directly uses environmental data in portfolio construction and is a leading advocate for corporate disclosure of such data. His research focuses on corporate impact on biodiversity: how to measure it, its implications for communities and ecosystems, its materiality for companies and investors, and how it may integrated into equity investment.