Hisham is the Environmental Defense Fund's Chief Advisor in India, responsible for the organization's strategy in the region which centers on playing a catalytic role towards a vision of an Indian pathway to shared, sustainable, prosperity. He started his career in sales, marketing and consulting with Hindustan Unilever, WorldTel, Accenture & Infosys. He subsequently moved to the development sector where he led the National Condoms Programme for the Indian Government’s National AIDS Control Organisation and later set up operations in South Asia for Wikimedia Foundation, promoting projects like Wikipedia. Most recently, he led the work of Children’s Investment Fund Foundation in India across health, nutrition, adolescence, education, girls & women’s rights and livelihoods, child protection and climate change.