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ZeAmma Brathwaite has over 20 years of experience partnering with private organizations and federal agencies to improve access to care and health outcomes for individuals and communities. A certified project management professional, Brathwaite has extensive experience leading multidisciplinary teams in the design, implementation, and evaluation of complex, large-scale transformation efforts using improvement science methods and tools to accelerate change.

Eduardo Castellon has two decades of experience helping public sector clients—from the U.S. Agency for International Development (USAID) and the U.S. Postal Service (USPS) to the Department of Housing and Urban Development—grow and refine their operations and impact. He has extensive experience delivering consulting expertise focused on artificial intelligence (AI), supply chain, procurement, financial management, and advanced analytics. His technological, consultative, and entrepreneurial skills help clients find new ways to address challenges ranging from affordable housing to homelessness to guaranteed income. He also has extensive expertise in technical assistance and implementation (TA&I) approaches. And his management experience includes developing high-performing teams through skills and career development and succession planning.

Sunnie McClain is a senior technology and transformation executive with more than 25 years of experience leading large scale digital modernization across federal, defense, health, and commercial sectors.

Andrew Alderdice is an experienced health and human services leader with more than 35 years’ experience across Australia, New Zealand and the Pacific. He is currently Abt Global’s Country Manager for Papua New Guinea (PNG).

Geoff Scahill has over 20 years of experience working in and managing international development programs. He has worked extensively within Papua New Guinea (PNG) and the Pacific – predominantly in Indonesia, Fiji, Samoa, and the Solomon Islands. He brings a long history as a health sector professional and has held roles as a health management advisor and health systems adviser in Pacific Island Countries. Geoff draws on his background in finance and economics to work with counterparts to increase efficiencies within the programs Abt Global delivers.