In the wake of Haiti's 2010 earthquake, he was requested by the Administrator of UNDP and the UN Secretary General to assume the duties of head office of the Special Envoy of the Secretary General of the United Nations for Haiti. Conille worked with the Haitian government, the representation of the United Nations in Haiti and the main donors to develop and implement a strategic plan for the reconstruction of Haiti. He was also involved in coordinating the humanitarian response and in the establishment of the Interim Haiti Recovery Commission, the central structure of the reconstruction.