Dr Haseeb Irfanullah is a biologist-turned-development facilitator, who often introduces himself as a research enthusiast. Over the last 22 years, Haseeb has worked for different international environment and development organizations, academic institutions, funders, and the Government of Bangladesh in different capacities. Currently, he is an independent consultant on environment, climate change, and research systems. He is also involved with the University of Liberal Arts Bangladesh (ULAB) as a visiting research fellow at its Center for Sustainable Development (CSD) in Dhaka, Bangladesh.

Among others, Haseeb's current interests include nature-based solutions (NbS). He has been working with the International Centre for Climate Change and Development (ICCCAD), Bangladesh and the Nature-based Solutions Initiative of the University of Oxford to create knowledge, build an evidence base, and facilitate a practitioner community on NbS in Bangladesh. Under the Oxford Martin Programme on Biodiversity and Society, he has been working with the teams in Oxford and Peru to develop methodology to collate data and information for creating evidence of economic recovery potentials of diverse NbS interventions in Bangladesh and communicating the same to the policymakers and practitioners.

Haseeb frequently writes and talks on NbS to popularise the concept and is an advocate of evidence-guided policy and practice change for effective conservation and resilience building efforts through NbS. He has a PhD in aquatic ecology from the University of Liverpool, UK.