Dr. Gamariel Mbonimana was born on 15 October 1980 in Kamonyi District, Southern Province, and is a citizen of Rwanda.

Dr. Gamariel’s educational pursuits include Secondary school diploma certificate for ordinary level from ES MBOGO (1995-1998), joined Institut Technique de Rutobwe (ITER) (1998-2001) for a secondary teaching certificate. He graduated with Bachelor of Arts in Psychopedagogy from University of Kibungo (Rwanda), a Masters of Arts in Educational management from Kabale University (Uganda), a Master of Business Administration in Logistics and Supply chain Management from National Institute of Business Management, India and a Doctor of Philosophy in Education Management from Holy States University United States.

Dr Gamariel started as a teacher at Rusave Primary School (September 2001-December 2003), Kayonza Modern Secondary School teaching Psychology, Sociology, Philosophy and Political Education (January 2004-December 2005), as a Dean and teacher at Institut Don Bosco Kabarondo (January 2009-May 2013).

From April 2014, he served as a Part timer lecturer at Mount Kenya University Kigali campus. From January 2015 to March 2016 served as a senior lecturer and as the Head of Department of Education at Mahatma Gandhi University Rwanda. In March 2015, he joined University of Kigali where he served in various positions such as a coordinator of Post Graduate Diploma in Education, Head of Department of Education programs as an Acting Dean of Postgraduate School (January 2017-August 2017) as an Associate Dean Post Graduate school (August 2017 to June 2018) and served as a full time senior lecturer and Associate Dean, School of Postgraduate at University of Kigali.

While as a lecturer, Dr. Mbonimana lectured Psychoperspective of social development, Educational Guidance and Counseling, Tests, Measurements and Evaluation, Historical foundations of Education, Psychology, Pedagogy, Philosophy, Sociology, Research Methodology, Human resource management, Organizational behavior, Communication skills, Personality development, Principles of Management Theories and Principles of Management in Education, Foundation of education, Financial resource administration and management, Personnel Management and Administration, Academic Affairs Management And Administration, Programme Mgt., Curriculum and Administration of Higher Education, Effective Teaching and Learning in Higher Education, Student welfare management and administration, Research methodology, Educational Policy and Planning Procurement and Supply chain management, Local and international procurement, Warehousing and inventory management, Logisticsand Suppply chain management, Operation quality logistics, Planning for procurement and supply chain management, Negotiations and contract management, Risk management and supply chain management, Public policy and management among others.

From 4 September 2018, Dr Gamariel was elected as a member of parliament of the Chamber of Deputies in the Parliament of Rwanda and on 19 September 2018 he sworn in. He is a member on Education, Technology, culture and Youth in the Parliament of Rwanda.

Dr Gamariel belongs to Liberal Party political party in Rwanda. On 28 May 2019, the Bureau of the Chamber of Parliament appointed him in Francophonie Parliament Association as a committee member on Education, Communication and Cultural Affairs.

On the 14 November 2022, Dr Gamariel, the Rwandan Parliament Member was resigned from parliament of the Chamber of Deputies in the Parliament of Rwanda due to personal reasons.

Dr. Gamariel has published the finding of his research on Education policy & management, Supply chain interconnectedness, Warehousing and inventory management, Logistics and Politics in books and other peer publications journals hence cited with an H-Index of 7 with 21 citations in over 12 peer-reviewed journal in international relation publications