He matriculated from ID Mkhize High School in Gugulethu, Cape Town, in 1986. His academic journey is marked by consistent pursuit of excellence and lifelong learning:

• 1993 – Higher Diploma in Education (Post Graduate) – University of the Western Cape
• 1994 – Honours BA – University of Stellenbosch
• 1998 – Master of Philosophy (M.Phil) in Adult Education – Stellenbosch University
• 2013 – PhD in Linguistics, Languages, and Literature – University of South Africa (UNISA)

Dr. Siwisa has held several influential positions throughout his career:

• Deputy Principal at Steve Tshwete Secondary School
• Lecturer/Tutor at Dansa International College
• Curriculum Coordinator for Tshwane District 4
• Departmental Head at Rosina Sedibane Modiba Sports School of Specialisation
• Senior Lecturer (C) in the Languages Department at the South African College for Teacher Education
• Lecturer in the Languages Department at both the University of the Western Cape and Stellenbosch University
• Lecturer in the Linguistics Department at the University of South Africa (UNISA)

As the President of the Future Global Leaders (FGL) Club, Dr. Siwisa brings his wealth of academic expertise, leadership experience, and passion for youth development to inspire and guide the next generation of global change-makers.