In 1991, Ramdin became the Director of the HIMOS Development Agency in Oegstgeest, Netherlands.[5] In 1997, Ramdin was appointed the Permanent Representative of the Organization of American States (OAS) for Suriname.[6]
In 1999, he became assistant general for external relations at the Caribbean Community (CARICOM).[4] In 2001, Ramdin became adviser to the Secretary General of the OAS.[5] On 7 June 2005, Ramdin was elected Assistant Secretary General of the Organization of American States, and took office on 19 July 2005.[7]
In July 2015, he returned to Suriname where he worked for the Ministry of Foreign Affairs.[8] In August 2015, approximately a month after his return to Suriname, he was appointed by Minister Niermala Badrising as Ambassador at Large.[9] In May 2016, Ramdin started working for the American gold mining company Newmont Corporation.[10]