Has been working in Pertamina since 1989 as Seismic Interpreter, Exploration, Pertamina - UEP I, Pangkalan Brandan, Sumatera Utara, previously, Slamet Riadhy earned Bachelor’s Degree and Master of Geology Engineering from Institut Teknologi Bandung. In 2002, he was promoted to be Basin Study Manager and he became Exploration Manager of Region Sumatera Pertamina EP in 2004. Thereafter, he became Vice President for Middle East-Africa Venture in 2007, Senior Vice President Upstream Business Development at Pertamina (Persero) in 2009, President Director of Pertamina Geothermal Energy (PGE) in 2011, and Senior Expert-Upstream Director at Pertamina (Persero) in 2011. Since March 2015, he held key position at Pertamina Internasional EP as President Director.