Néstor Osorio Londoño became Colombia's Ambassador to the United Kingdom of Great Britain and Northern Ireland in February 2014 and retired in mid-2019.  Beginning his career as an administrative lawyer, in 1978 Nestor was named Alternate Delegate for Colombia at the International Coffee Organisation (ICO) eventually becoming head of mission and Permanent Representative until 1994. He then served as the first Permanent Representative of Colombia to the World Trade Organization (WTO) in Geneva from 1995 to 1999. After the WTO, he worked for the Colombian Government as High Advisor for Coffee Policy from September 2000 until his election as Executive Director of the ICO serving until 2010. In November 2010, Osorio became Colombia's Permanent Representative to the United Nations in New York. During April 2011, Colombia held the rotating presidency of the UN Security Council, and Osorio was the Council's president.