DEL Alumni

Duke Environmental Leadership Master of Environmental Management (DEL-MEM) graduates enter the program as working environmental professionals, coming from a diverse array of employment sectors and leadership positions. Many of our graduates continue their careers with their employer, but often with increased responsibility and leadership roles, often accompanied by a promotion. DEL-MEM graduates also often find new career opportunities through their growing network and new skill sets.

DEL-MEM alumni hold positions in green technology startups, private-sector companies, non-profit organizations, government agencies, and consulting firms providing leadership and strategic thinking in the areas of energy, sustainability, program management, conservation, communications, environmental health and safety, and policy analysis, among other areas.

The Nicholas School’s dedicated Career & Professional Development Center has three full-time staff members to help our DEL-MEM graduates advance their career goals and successfully compete for new opportunities.


Here are just a few of the employers our DEL-MEM alums are associated with:

  • Google
  • U.S. Environmental Protection Agency
  • Conservation International
  • U.S. Department of the Interior
  • Harley-Davidson, Inc.
  • W.L. Gore & Associates
  • E Source
  • The Nature Conservancy
  • Local, state, and federal government agencies
Vice President, Sustainable Practice Director - Facilities, Washington, D.C.
Lidia Berger, MEM, LEED Fellow is Vice President, Sustainable Practice Director – Facilities at URS. Under her current role Ms...
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Senior Technical Director
Curtis Bernard provides thoughtful leadership of the technical programme at Conservation International Guyana. He provides a unique mix of skills...
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Policy and Communications Analyst
Kristen Bremer works as a Policy and Communications Analyst for the U.S. EPA’s Office of Air Quality Planning and Standards...
Director, Strategic Customer Relations & Product Development
Matthew provides strategic guidance to energy clients on the convergence of technology, society, markets and policy. As an industry thought...
President & CEO
When Sergio Castillo took over in 2009 as president and CEO of the company his father had founded 10 years...
Director, Sustainability Practice
Katya Hantel is a director in GolinHarris’ geoImpact sustainability practice, developing communications strategies promoting environmental, social and philanthropic initiatives for...
Vice President, Senior Ecologist
Brian serves as Vice President and Senior Ecologist with BioResource Consultants, Inc. (BRC), an environmental consulting firm based in Ojai,...
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Principal Planner
Brian W. Holt is a Principal Planner with the East Bay Regional Park District where he leads the Advance Planning...
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Deputy Branch Chief
Dika is currently serving as the Deputy Chief of the Air Protection Branch of the Georgia Environmental Protection Division (EPD)...
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Environmental Manager, Powertrain Operations
Matt Redmann has had a love affair with motorcycles since he was a kid watching daredevil Evel Knievel jump over...
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District Director
Dale Threatt-Taylor is the Director of the Wake Soil and Water Conservation District and Wake County’s Soil and Water Conservation...
Syndicated Cartoonist
For the past 20 years, Jim Toomey has been writing and drawing the daily comic strip Sherman's Lagoon , which...