Mustaffa has experience as an administrator, chief of student and youth, politics and corporate for more than 30 years.
He is a Bachelor of Science (Genetics) (Hons) UKM, Diploma in Education (Mathematics & English) UIAM, Diploma in Islamic Finance, IPI and Bachelor of Political Science, UKM.
He was the Assistant of Registrar and Head of Training Department of UIAM, Political Secretary of Minister of Sports and Youth Malaysia, Director of Perangsang Selangor Berhad Group and Chairman of Academy of Training, Information and Research Selangor.
In the human resource and training field, he is the Master Trainer Muslim Student Association of Japan, Master Trainer for Student Leadership Training Programme in Brunei, Master Trainer of Young Executive Leadership Programme in Singapore, and often invited to present papers about leadership in Maldives, The Netherlands, Indonesia, Brunei, Singapura, United Kingdom, Trinidad & Tobago, Taiwan and Mongolia, and also in all kinds of seminar and forum in Malaysia.
He is the writer of 11 books, which are Gerakan Pelajar-Mahasiswa (1991), Menangani Cabaran (1994), Dinamika Generasi Muda Menangani Cabaran Wawasan 2020 (1995), Leadership Dynamism (1996), Youth Renaissance (1997), Menerajui Perubahan Poltik Malaysia (2001), Masyarakat Madani dan Idealisme Politik (2004), Masa Depan Politik Alternatif (2002), Ahzab Moden dan Masa Depan Islam (2003), Gerakan Subuh (2017) and the latest book Membangun Insan dan Tamadun (2019), and also editor of several books and magazine.