Oscar Castañeda Samayoa has worked for decades designing, implementing and evaluating community-based sustainable development programs. Before joining Heifer, Castañeda served World Neighbors as country director for his native Guatemala. He has also been a consultant and part-time professor in the fields of agroecology and organic agriculture, authored several publications, and led numerous workshops on sustainable organic agriculture and project planning and monitoring. Castañeda is fluent in Spanish, English and German.