Editor-in-Chief, Small-scale Forestry(February 2025-): A journal published by Springer Nature (IF- 1.4). Forum Basiliense Fellow, University of Basel, Switzerland (March 2025 -June 2025): Visiting fellowship for interdisciplinary research on Anthropocene. Associate Professor, United International University(January 2023 -):Department of Environment and Development Studies. Head, United International University(June 2023 -July 2024):Department of Environment and Development Studies. Dean (in-charge), United International University(October 2023): School of Humanities and Social Sciences (SoHSS). Courtesy Research Associate Professor, Florida International University, USA (July 2024 - ): Department of Earth and Environment. Steering Committee Member, 2ndFor Network (May 2024-): Global Secondary Forests Research Network. NationalConsultant, Forestry and Nature-based Solution (May 2021- October 2023): The World Bank Group and Food and Agriculture Organization of the United Nations (FAO), Bangladesh Country Office. Nature-based Solutions Consultant, Shell Eastern Petroleum Ltd. (Singapore)(November 2022 - April 2023):To assist in pre-feasibility assessment of potential carbon offset projects in Bangladesh. Consultant, USAID Protibesh/ Ecosystems Activity(November 2022 - April 2023):To assist Arannayk Foundation (Dhaka) in the Assessment of Nishorgo Network in Protected Areas of Bangladesh. Consultant, Climate Change Adaptation Governance(February 2022 - October 2022): Organisation for Economic Cooperation and Development (OECD), Paris, France. National (Bangladesh Implementation)Consultant, Nature-based Solution (January 2022 - November 2022): Asian Development Bank (ADB), Manila, Philippines. NationalConsultant, Wetland and Biodiversity Conservation (May 2021- March 2022): United Nations Development Programme (UNDP), Bangladesh Country Office. Events Committee Member, British Ecological Society (May 2021-): The oldest and largest ecological society in the world founded in 1913 in the United Kingdom. Core Member,Alliance of Leading Environmental Researchers & Thinkers (ALERT) (March 2021-): A global scientific think tank that helps world-class researchers have a concerted, highly credible voice on key environmental issues. Scientific Advisor, CredoSense Inc. (Ltd.)(March 2021-): A Bangladesh-Canada joint venture that strives to become a global leader in environmental sensor-logger systems by making intelligent and affordable monitoring solutions for scientific and industrial applications. Associate Editor, Biodiversity and Conservation(January 2021-): A journal published by Springer Nature (IF- 3.55). Research Assistant Professor, Florida International University, USA (June 2020 - June 2024): Courtesy appointment with the Department of Earth and Environment. Review College Member,British Ecological Society (April 2020-): The oldest and largest ecological society in the world, founded in 1913 in the United Kingdom. Associate Editor, Sustainability(March 2020-): A journal published by the MDPI, Switzerland (IF- 3.25). Research Evaluation Committee Member, Sustainable Forests and Livelihoods (SUFAL) Project(2020-): 175 M USD worth World Bank-funded project implemented by the Bangladesh Forest Department. Advisor, Nature-based Climate Solutions (2019-2023): International Centre for Climate Change and Development (ICCCAD), Dhaka, Bangladesh. Associate Editor, Ecology and Evolution(March 2019-April 2023): A journal published by Wiley (IF- 2.91). Section Editor,Life one Land, Encyclopedia of the UN Sustainable Development Goals (2019-2020): The largest publication project on UN SDGs from Springer, Switzerland. Member, Board of Trustees (2019-): Bangladesh Institute of Social Research (BISR) Trust. Taskforce Member: Refugees and environmental crisis (part of Scientist’s warning to Humanity project hosted by Oregon State University, USA). Scientific Committee Member and Organiser(February, 2019): International Conference – 'Forest and Landscape Restoration: Making it happen' held in New World Makati Hotel, Manila, Philippines. National Consultant, The Nature Conservancy (USA) and Centre for Global Development (USA)(September 2018- June 2019): Creating opportunities for Rohingya refugees and hosts through Forest and Landscape Restoration in Cox’s Bazar, Bangladesh. Steering Committee Member (Forests & Biodiversity),International Centre for Climate Change and Development (ICCCAD) (2018): Monitoring Environmental Changes in Cox’s Bazar following the Rohingya Influx (a project of the International Organization for Migration, IOM). Associate Editor, Small-scale Forestry(March 2017-): A journal published by the Springer Netherlands (IF- 1.78). Associate Editor, Journal of Applied Ecology(January 2017): A British Ecological Society journal published by Wiley (IF- 6.53). Assistant Professor, Independent University, Bangladesh(January 2017 - August 2019): Full-time faculty position in the Department of Environmental Management, School of Environmental Science & Management, Independent University, Bangladesh. Senior Research Fellow, University of the Sunshine Coast, Australia(May 2017-): Tropical Forests and People Research Centre within the USC Forest Research Institute. Staff Consultant, The World Bank Group, USA (October 2015 - October 2016): Part-timeconsultant position with The World Bank's Environment and Natural Resources Global Practice (ENR GP) program. Postdoctoral Research Fellow, University of the Sunshine Coast, Australia (September 2015 - December 2016): Post-doctoral position within the Tropical Forests and People Research Centre. Postdoctoral Scientist, The University of Queensland, Australia(September 2015 - December 2016): Postdoctoral position within the Tropical Forestry Group, School of Agriculture and Food Sciences. Communications Editor, PARTNERS (People and Reforestation in the Tropics - a network for education, research and synthesis) (April 2015 - ): A global research coordination network funded by the U.S. National Science Foundation (NSF), Coupled Natural and Human Systems Program. Academic Supervisor, The University of Queensland, Australia (July 2014 - September 2016): Academic position with the School of Geography, Planning and Environmental Management (GPEM). Reviewer, World Bank Conference on Land and Poverty (2014 & 2015): Annual World Bank Conference on Land and Poverty held in Washington DC, USA. Reviewer, Intergovernmental Panel on Climate Change (IPCC): IPCC Fifth Assessment Report (Working Group II: Impact, adaptation & vulnerability; with Netherlands Environmental Assessment Agency on 2013). Co-founder and Executive Director, Centre for Research on Land-use Sustainability(2008-): A global platform for research and consultancy on tropical land use under changing climate and human pressure. Managing Editor, International Journal of Research on Land-use Sustainability(2013-): An international journal published by the Centre for Research on Land-use Sustainability. Research Fellow, Australian Centre for International Agricultural Research (ACIAR), Australia (January 2012 - August 2015): Within the project - Improving watershed rehabilitation outcomes in the Philippines (Project: ASEM/2010/050). Technical Committee Member (2011 & 2012): International Conference - 'Environmental Aspects of Bangladesh' held annually in Fukuoka, Japan. Graduate Research Coordinator (September 2007- April 2009):Towards several doctoral research projects for the University of Bayreuth, Germany; Shinshu University, Japan and Swedish University of Agricultural Sciences. Research Fellow, East-West Center (Honolulu, Hawaii) and Nishorgo Support Project (NSP) (January 2006 - August 2006): Project onProtected Areas and Rural Livelihoods by the Bangladesh Forest Department.