Zainal Rahim Seman serving in the public sector for 33 years since joining the Administrative and Diplomatic Officer (PTD) service on 9 January 1984. On 16 April 2009,
Chief Secretary to the Government Mohd Sidek Hassan announced his appointment as the Secretary of Penang State Government. On 2012, he served as Secretary-General of the
Ministry of Human Resources. On 13 January 2014, he served as Deputy Director General of Public Service (Operations). On 9 January 2015, he served as Director General of the Malaysian Administrative Modernisation and Management Planning Unit (MAMPU) in
Prime Minister's Department. He was appointed as 22nd Director-General of Public Service on 16 January 2017. He was retired on 31 May 2018. == Post career ==