Our Team

Dr. Amardeep Wander
Dr. Amardeep Wander
Founder and Director
Amardeep is an international waste management and marine litter expert. Amardeep has extensive experience providing waste management and policy analysis and provides practical solutions for waste management challenges and control of land and marine sources of plastic litter in the marine environment.
Olivia Pope
Olivia Pope
Admin

Olivia is an active member of her community, often volunteering for both her local rotary club and school as a member of the Student Leadership Group. She’s always open to new opportunities, recently participating in events such as the 2025 Climate Conference and Clean Up Australia Day demonstrating her commitment to environmental issues. Olivia is incredibly excited to work and learn from the WREN team through her admin internship.

WREN Caribbean

Giselle Mahung
Giselle Mahung
Caribbean Regional Manager
Giselle Mahung specializes in project coordination and management, with a strong focus on community and stakeholder engagement within the natural resources management, conservation and climate change sectors.
Ritchie Bardalez
Ritchie Bardalez
IT Consultant

Ritchie Bardalez is a seasoned web designer with 13 years of professional experience in Belize. Renowned for his innovative designs and user-centric approach, Ritchie has crafted visually stunning and highly functional websites for a diverse clientele, ranging from local businesses to international organizations. His expertise spans responsive design, SEO optimization, and intuitive user interfaces. Ritchie’s passion for web design is matched by his commitment to using technology to create environmentally-friendly solutions.

Ivory Kelly
Ivory Kelly
Copyeditor
Ivory Kelly has worked as a freelance copyeditor for over ten years, with clients in academia, government, NGOs, and various technical and professional fields.
Johnelle Mckenzie
Johnelle Mckenzie
Project Officer

Ms. Johnelle McKenzie is a dynamic professional with a multifaceted background in media, communications, client relations, and business operations. At WREN Belize, she collaborates with translators, manages clients’ social media and email platforms, liaises with stakeholders, and oversees project progress to ensure quality and timeliness. She has contributed significantly to the United Nations High Commissioner for Refugees in Belize by preparing media content and coordinating high-profile events such as World Refugee Day and community inaugurations. With a strong foundation in journalism, she has reported on national and judicial matters, conducted investigative journalism, and authored in-depth articles on topical issues.

WREN Pacific

Sipaia Daniel Fetu
Sipaia Daniel Fetu
National Coordinator Samoa & JPRISM National Expert
Sipaia coordinates all activities in the Pacific region and specializes in project coordination and management, with a strong focus on community and stakeholder engagement.
Ma Bella Guinto
Ma Bella Guinto
Senior Consultant
Supported by the Centre for Environment In early 2021, Bella completed more than six years as the solid waste management adviser at SPREP.
Marina Keil
Marina Keil
Consultant
Marina started her journey in the waste industry at the age of 16. She was trained and mentored by my father who is the first recycler in Samoa, for a period of 9 years, and in 2005 became the COO for his company.
Maloni Havea
Maloni Havea
Associate - Tonga

Mr. Maloni Havea serves as the Local Coordinator for Waste Management in Tonga, championing sustainable practices and innovative solutions to address the unique challenges of waste management in Pacific Island communities. With extensive experience and a deep commitment to environmental stewardship, Maloni collaborates with local stakeholders, regional organizations, and international partners to promote effective waste management strategies that benefit both the community and the environment.

Vineta Pisia
Vineta Pisia
Admin Assistant (Samoa)

Vineta Pisia is an experienced Administration Officer, bringing a dynamic background in administration, youth and social work, and community engagement across Samoa, New Zealand, and Fiji. With a passion for supporting both organisational efficiency and community wellbeing, Vineta excels in multitasking and delivering high-quality administrative support in fast-paced, mission-driven environments.

Her career spans over a decade of hands-on roles in finance, youth mentorship, project coordination, and leadership within non-profit and community sectors. Vineta has successfully led and facilitated a range of impactful projects, including food parcel distribution for vulnerable families, wheelchair and water tank initiatives for rural and disadvantaged communities, and educational workshops linking climate change to gender-based violence. Her work is characterised by a strong commitment to social inclusion, practical problem-solving, and fostering collaborative partnerships with stakeholders.

Vineta holds a Certificate IV in Youth Work and a Diploma in Business, complemented by ongoing professional development in safeguarding, leadership, and workplace wellbeing. Fluent in Samoan and English, with working knowledge of Fijian, she is adept at engaging diverse communities and delivering culturally responsive services.

As part of the WREN Consulting team, Vineta leverages her extensive administrative expertise, project management skills, and community focus to contribute to sustainable waste management solutions and positive environmental outcomes. Her dedication to continuous learning and adaptability ensures she remains a valuable asset to both her colleagues and the wider community.

Berry George Mahau
Berry George Mahau
Associate - Vanuatu

Berry George Mahau is an experienced development facilitator and waste management specialist from Tanna, Vanuatu. With a strong background in environmental projects across the Pacific, Berry has contributed to multiple regional waste audit initiatives, including work in Vanuatu, Solomon Islands, Tuvalu, Palau, and Samoa. His expertise spans waste data collection, auditing, team management, and community training. Berry is passionate about sustainable development and continuously seeks to enhance his skills through collaboration and learning.

Faafetai Sagapolutele
Faafetai Sagapolutele
Associate - Pacific Region

Faafetai is a highly experienced waste management specialist with over two decades of leadership in solid waste strategy, project implementation, and environmental policy across the Pacific. He has served as Assistant Chief Advisor for the JICA-supported JPRISM I & II programs, providing technical support to Pacific Island countries in areas including disaster waste management, landfill rehabilitation, and the establishment of recycling associations. Faafetai has also consulted for SPREP, APWC, and various national governments, leading waste audits, policy development, and strategic planning. He brings deep expertise in stakeholder engagement, regional coordination, and advancing sustainable recycling systems. Faafetai holds an MSc in Project Management from Salford University and post-graduate qualifications in environmental studies and biodiversity conservation.

Our Network of Experts

Dr. Ana Markic
Dr. Ana Markic
Marine Scientist - Plastics

Ana is a marine scientist with over a decade of experience in marine debris research, particularly focusing on plastics and microplastics. She has international experience, having previously worked in Australia, New Zealand, and most recently in Samoa for the Secretariat of the Pacific Regional Environment Programme (SPREP), conducting a comprehensive review of marine debris issues in the Pacific region.

She also has extensive fieldwork experience in research conducted in Australia, New Zealand, Samoa, Tonga, French Polynesia, and Easter Island. Ana is skilled and experienced in working in remote locations under varying conditions, as well as in culturally diverse and fast-paced office environments. She holds a PhD in Marine Science from the University of Auckland and a master’s degree in Marine Science and Management from Southern Cross University.

Andrew Irvin
Andrew Irvin
Maritime and Sustainability Expert
Residing in Fiji since 2012, Andrew is a sustainability professional with over a decade of multi-sectoral experience working in SIDS.
Benjamin Banai
Benjamin Banai
Data Scientist & Statistician
Benjamin Banai currently works with the WREN team as a data analyst while pursuing his PhD at the Department of Psychology of Faculty of Humanities and Social Sciences, University of Zagreb. As a freelancer, he has also been involved in more than 30 projects from academia and the business world.
Arina Vaseli
Arina Vaseli
Data Scientist & Statistician

Arina is a psychologist and a linguist by education with a passion for numbers. During her studies she was involved in various research projects in the fields of neuroscience, cognitive psychology, and clinical linguistics, which led to a deeper interest in statistics and data science. She is continually working on improving her programming and data analysis skills, focusing on tools like R and Python. She enjoys taking on new projects and working in inter-/multidisciplinary environments.

Arina has spent the last three years working on numerous projects undertaking statistical analysis for kerbside waste audits, litter audits and landfill audits.

Gerry Gillespie
Gerry Gillespie
Composting and Organics Management Expert

Gerry has been involved in the recovery of organic materials and their reuse in soils for 30 years both in Australia and overseas, including roles in New Zealand and consultancy work in Egypt, China, Scotland, India, Wales, Ireland, UK, France, Japan, Taiwan, Canada and the US. With an emphasis on community engagement, he developed the City to Soil collection program and helped refine an inoculant-based, odour-free, no-turn compost process based on the work of M. E. Bruce and Sir Albert Howard.

He has current projects in the fields of biochar, foliar fertilisers, feral animals, food waste and compost. He currently works as an Organics Consultant to local business, farmers groups and councils both in person and on-line.

Chamindra Vithana
Chamindra Vithana
Report Writer

Chamindra is an Environmental Scientist with more than 10 years of experience in editorial work and doing research in both Australia and Sri Lanka. Her primary research interest is studying the various hydrological and geochemical processes in aquatic and terrestrial environments. She would also like to apply her knowledge to understand and address the hazards faced by both terrestrial and aquatic environments. She is an Adjunct Fellow at Southern Cross University and has collaborated on various research projects. Over the past few years, she has been involved in conducting field-based studies and laboratory work, designing and executing research projects and grant applications, supervising undergraduate students, presenting the research outcomes via peer-reviewed articles and conferences, contributing to technical reports, and volunteering in manuscript reviewing. From April 2023 to April 2024, she worked as a Co-Guest Editor of a Special Issue titled “Impact of Plastic Pollution on Coastal Ecosystems in Tropical Regions” of the Sustainability journal. Also she is currently serving as an Associate Editor of the Frontiers of Environmental Science-Soil Processes section. She has published her work in several peer-reviewed, high-ranking journals and also a book chapter. Also, she has reviewed nearly 200 manuscripts in reputed journals and grant proposals from funding organizations.