Tan Sri Dato' Seri Dr Aseh joined the Ministry of Finance, Malaysia in March 1974 and held various positions as Assistant Secretary, Secretary and Principal Assistant Secretary of the Education Services Commission in Kuala Lumpur, Sarawak and Sabah during his 8 years with the Commission.

Since 1984, Tan Sri Dato' Seri Dr Aseh served in the Ministry of Home Affairs, Malaysia in various positions including:

1) Principal Assistant Secretary of the Security and Police Affairs Division;
2) Undersecretary of Security and Preventive Division, and Management Division; and
3) Deputy Director General and Director General of the Department of Immigration, Malaysia.

In February 2001, he was appointed Secretary General of the Ministry of Home Affairs, Malaysia, a post he held until his official retirement on 22 October 2007.

He was a director of Lion Diversified Holdings Berhad from 2007 to 2019, the President of Putrajaya Corporation, which was established under Perbadanan Putrajaya Act 1995, from August 2012 to July 2015, and had been the Chairman of:

1) Pos Malaysia Berhad from 2008 to 2011;
2) Stemlife Berhad from 2008 to 2013;
3) University Council of Limkokwing University of Creative Technology, Cyberjaya from 2008 to 2017;
4) MWE Holdings Berhad (now known as MWE Holdings Sdn Bhd) from 2008 to 2018; and
5) Social Security Organisation (SOCSO) from 2017 to 2018.

He was also active in the Malaysian Administrative and Diplomatic Service Association and was its longest serving President from 2001 to 2007.

He is active in community service and currently holds the following offices:

1) Trustee and Chairman of Integrity Committee of Football Association of Malaysia;
2) Chairman of Yayasan Pesara Kerajaan;
3) President of Tiara Golf & Country Club, Melaka;
4) Vice President of the Malaysian Golf Association;
5) Chancellor of Infrastructure University Kuala Lumpur; and
6) Chairman of Council of Dato' Dato' Kurnia Negeri Sembilan Darul Khusus.

British American Tobacco (Malaysia) Berhad (Chairman)

Nil

Nil

Nil