- YB Tan Sri Dato' Nasruddin Bin Bahari, B.A. (Hons), MPA, PSM, DSPN, JMN served as the Secretary Generalin the Ministry of Defence from 1988 to 1992.
- YB Tan Sri Dato' Nasruddin Bin Bahari served in the Administrative and Diplomatic Service in various capacities from 1961 to 1992, including Deputy Director-General in the Prime Minister's Department, Director-General of Lands and Mines, Secretary-General in the Ministry of Land and Regional Development.
- From 1974 to 1977, he was seconded to the United Nations Administration. YB Tan Sri Dato' Nasruddin Bin Bahari servedas Advisorto the Planning Committee of the United Nations University in Tokyo. He served as Vice President of the Association of Research and Development Institutes for Asia and Pacific since 1975 for aperiod of two years.
- He has been the Chairman of PacificMas Bhd since June 26, 2008. He serves as the Chairman of Affin Moneybrokers Sdn Bhd, OCBC Credit Berhad and Road Builder Bhd.
- He served in various companies and development corporations both at Federal and State levels including being the Deputy Chairman of Armed Forces Fund Boar (LTAT), Chairman of Sawira Sdn Bhd, Syarikat Malaysia Explosive Sdn Bhd, Naval Dockyard Sdn Bhd, AIROD Sdn Bhd and Airospace Industries of Malaysia (AIM) Sdn Bhd.
- YB Tan Sri Dato' Nasruddin Bin Bahari has been an Independent Non-Executive Director of RB Land Holdings Bhd since November 9, 2007. He has been a Director of Great Eastern Life Assurance (Malaysia) Berhad since January 18, 2010. He has been a Senior Independent Non-Executive Director of Road Builder(M) Holdings Bhd since August 29, 2002. He has been an Independent Non-Executive Director of IJM Land Berhad since November 9, 2007 and has been its Senior Independent Non-Executive Director since November 22, 2007.
- He serves as a Director for the following Public Companies: Affin Moneybrokers Sdn Bhd, OCBC Credit Berhad, OCBC AI-Amin Bank Berhad and The Pacific Insurance Bhd.
- He served as Chairman of the Board and Director of OCBC Bank (Malaysia) Berhad until March 29, 2014. Heserved as a Director of Oversea Chinese Banking Corp. Ltd. from November 13, 2000 to March 2008.
- He served as an Independent Non-Executive Director of Lingkaran Trans Kota Holdings Bhd since August 1, 1996 until August 2014.
- He serves as Chairman of the Board and Directorof CPI Engineering Services Sdn. Bhd. and Sumber Petroleum Cemerlang Sdn. Bhd. since 2004.
- He served as a Director of Road Builder (M) Holdings Bhd. from 1993 to 2007. YB Tan Sri Dato' Nasruddin Bahari served as Deputy Director of the Asian Centre for Development Administration (ACDA).
- He served as a Member of Inter-Regional Executive Committee of Research and Development Institutes for Asia, Africa, Europe and Latin America from 1976 to 1978.
- Upon his graduation in 1961, he joined the Malaysian Civil Service where he served more than thirty years. YB Tan Sri Dato' Nasruddin Bahari graduated from University of Malaya with a Bachelor of Art (Honors) Degree in 1960 and he obtained a Masterin Public Administration from the University of Pittsburgh, United States of America.