Our team

© Kemptorne Daly / WWF-Guianas


Our team operates from offices in Guyana and Suriname. We work passionately to ensure that these countries that we call home, maintain their natural wealth for our people. See who and where we are.


Dr. David Singh - Director

David is WWF’s representative in Suriname and Guyana. He has more than 20 years executive and leadership experience in natural resource management with a focus on governance and institutional development. He has engaged directly with local and indigenous communities, civil society, governments and the private sector in developing locally driven solutions to align their interests and respond to national and international agreements such as on Climate Change, Biodiversity Conservation, Indigenous Peoples Rights, and UN Sustainable Development Goals. He has led institutional change and worked to enable a range of stakeholders to vision and create sustainable policies that improve livelihood systems that achieve national and global environmental targets. David has developed a strong appreciation of conservation and natural resource challenges in resource dependent developing countries. David’s PhD is in Chemistry.

Aiesha Williams - Country Manager, Guyana Office

Aiesha is the Country Manager, Guyana since 2015, with the responsibility for managing and giving oversight to WWF’s Conservation programme and overall operations in Guyana. She joined WWF in 2004, and possesses strong management and leadership skills, with extensive expertise in the biodiversity conservation, freshwater and protected areas management, community-based conservation and partnership management and stakeholder engagement. She holds a Master’s Degree in Conservation and Tourism from Durrell Institute of Conservation and Ecology (DICE) at University of Kent.  Aiesha is a member of the Guyana Heritage Society and loves to travel.

Juliette Pawirosonto - Finance & Administration Manager

Juliette holds a Master degree in Business Administration and is responsible for the complete financial management of the WWF Guianas program, preparation and monitoring of the annual budgeting cycles, and management of donor contracts including reporting.

Ida Tanoesemito - Senior Accountant

Ida is in charge of monitoring project budgets; preparation of financial and donor reports and analyzing financial information. Her affection for nature is greatly reflected in the way Ida does her work.

Owinthia Hunte - Office Assistant

Owinthia Hunte joined the Guyana Office of WWF in February 2012. Since then, she has been taking care of all practical aspects linked to the upkeep and smooth functioning of the adminsitritive ascpets of the office, as well as the key responisiblity of office receptionist.

Wendy Sisal - Junior Accountant

With a university degree in Economics Wendy supports the finance team with her dedicated, flexible, positive and results-driven work attitude. She is the Junior Accountant since August 2017 and is mainly responsible for the day to day financial and accounting operations of the office. For a healthy work-life balance Wendy loves aqua-aerobics and enjoys recreational activities in the nature with her family.

Marleen Stoffelen  - Communications Officer

Marleen has been part of the WWF-Guianas team since 2022 as Communications Officer for Suriname. With her marketing and communication experience from the corporate world and background in social sciences, she wants to ensure that the excellent work WWF-Guianas does is widely supported, inspires people and encourages behavioural change. In 2011, Marleen moved from the Netherlands to Suriname, where her love for her husband (and now family) and the country has grown.

Landscape Coordinator Anna Mohase

Being a forester by profession, Anna has worked in Guyana’s forest sector for most of her professional career. Anna has dedicated her efforts to the sustainable management of forests and is now supporting the efforts towards forest and wildlife conservation with a focus on reducing deforestation and jaguar conservation. Conservation of forests as a part of maintaining forested areas for the sustainability for future generations, Anna feels that our collective efforts towards forest conservation is most critical at this time and we can all do our part.

Soraya Wijntuin - Oceans Coordinator 

Soraya joined the Oceans team in October 2020. She completed her Master studies in Biodiversity Conservation and Sustainable Development in the Caribbean at the University of the West Indies, Trinidad & Tobago. Soraya started her career in conservation in Suriname and has approximately 6 years of experience in working with indigenous communities, wildlife monitoring and working together with stakeholders. Soraya is leading the WWF sea turtle conservation projects for Suriname and the region by working together with a great variety of stakeholders. Soraya loves fitness and spending time with family and friends.

Maureen Menasse - Grants Manager

Maureen is the Grants Manager in Suriname since 2008. As the Grants Manager Maureen is responsible for processing and managing grants, consultancies and other agreements in Suriname; thereby working closely with grantees and contractors to help them fulfill their agreement in accordance with the terms. In her spare time, Maureen enjoys the outdoors and a good workout!

Kemptorne Daly - Communication Officer

Kemptorne is our Communications officer; he specialises in developing and designing communications materials. He is skilled in creative writing, using digital design tools, photography, media relations and web design. He possesses a combination of experience, education, and expertise, which he amassed in over ten years in digital media production, public and corporate relations, and the management of integrated media campaigns. He is interested in connecting the visual creative process to people's social and cultural identity. Kemptorne joined WWF in October of 2019 and holds a Master of Arts - focused on Media and Cultural Studies from the University of Sussex.

Melissa Gordyk - Office Manager

Melissa is a 14-year veteran of WWF and as Office Manager she is responsible for the coordination and smooth running of the Administration Department. Prior to joining WWF, Melissa was employed in temporary positions at the European Union Commission and Micro Projects. She also taught English part time at the Ewald Meyer Lyceum 2. Melissa's love of nature and wildlife makes her job very interesting and informative. She is a devoted dog lover and owner. Her hobbies are traveling abroad, whenever possible, swimming in natural environments and listening to music from the baby boom era. Spending quality time with family is a major priority.