Subject matter expertise in one or more of the following areas: regulatory analysis, regulatory compliance policy development, exposure assessment, human health risk assessment, ecological risk assessment, air quality, climate change, solid waste management, marine litter, pollution prevention, natural resource management, environmental impact assessment, sustainable development, environmental governance. + Serves as a professional representative of the organization, liaising with clients, partners, and other internal and external stakeholders during routine business operations, supporting business development efforts, or presenting technical contributions and accomplishments to clients and professional networks.