Our team

Paul Clayman joined UNDP in June 2011, after 15 years in the Legal Adviser’s office at the U.S. Department of State, five years as Chief Counsel to the Senate Foreign Relations Committee, and several years as an independent consultant to the U.S. House of Representatives, nonprofit Stimson Center, and U.S. Agency for International Development (USAID).

At the Senate Foreign Relations Committee, he worked closely with foreign assistance appropriations staff to ensure the most effective use of foreign assistance funds, consistent with congressional intent and programmatic aims. A Seattle native, he graduated with honors from Lewis & Clark College in Portland, Oregon, and from American University’s Washington College of Law. His experience in the private sector includes several years as a management consultant and lawyer in private practice, as well as a senior vice president at APCO Worldwide Inc., where he provided strategic counsel and tactical communications services to clients on a variety of public policy issues. These included promotion of long-term agricultural development overseas and development of vaccines to prevent livestock disease.

Yesim Oruc joined UNDP Washington in August 2016. She has 20 years' experience in programs and partnerships in UNDP country offices, including Turkey, Romania, and most recently Albania. As UNDP Country Director in Albania and Resident Representative in Romania, she has led UNDP's work to reform local governments, municipalities, security sector institutions, and electoral processes. She began her UNDP career in 1996 in the Turkey country Office. She holds a Master’s Degree ín Middle Eastern Studies (Politics) from the American University in Cairo and Bachelor of Arts from Yale University (US). She speaks English, Turkish, and some Arabic and German.

Sarah Jackson-Han rejoined UNDP Washington in August 2016 as Adviser for Communications, Partnerships, & Policy. She has more than 20 years' experience in print, broadcast, online, and social media; strategic communications; partnerships; risk and reputation management; and speech- and op-ed-writing. A native Washingtonian, she served most recently as Senior Communications Officer in the Gender Cross-Cutting Solution Area at the World Bank Group from 2013-2016, after working with UNDP from 2010-2013. Her regional expertise is in Asia and she holds honors degrees from Dartmouth College (US) and Cambridge University (UK).

Marissa Ayento brings 20 years of development experience to UNDP in Washington. Prior to the UNDP, she served at the Asian Development Bank (ADB) in Manila, Philippines. She holds a Bachelor of Arts in Economics and a Masters in Public Administration from the University of Philippines.

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