Datuk Dr. Halim was appointed as Chairman of the Malaysian Communications and Multimedia Commission on 1st April 2006. He obtained a Bachelor of Economic (Hons.) from the University of Malaya (1972), Masters in Public and International Affairs from the University of Pittsburgh, USA (1980) and a Doctorate in Information Transfer from Syracuse University, USA (1988). He also attended the Advanced Management Program at the Harvard Business School, USA, in 2000.

He has held several positions in the Government sector, including Assistant Secretary at the Ministry of Education. He served as Program Coordinator for the National Computer Training Center at INTAN, and as Director of the Information Technology Division of the Malaysian Administration Modernization and Management Planning Unit (“MAMPU”) in the Prime Minister’s Department. He served as the Director of INTAN before becoming Deputy Secretary-General, Communications and Multimedia, Ministry of Energy, Communications and Multimedia, in 1999. He was appointed as Secretary General of the Ministry of Energy, Water and Communications, Malaysia from November 2000 till March 2006.