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• Elementary Science and Basic Computer Program Teacher at Schulzentrum, Cite Verte, Yaounde (1990-91)
• Research Assistant in Radiation Biology, Laboratory of Nuclear Physics, University of Yaounde (1991-92)
• Ordinary and Advanced Level Biology Teacher, MBHS, Etoug Ebe Yaounde (1993-94)
• Teaching Assistant in Animal Physiology and Grdaduate Teaching Assistant in Bilingual Training, Faculty of Science, University of Yaounde I (1994-95)
• Graduate Research Assistant of Pharmeutical Biology and Phytopharmacology at the Institute of Pharmaceutical Biology, School of Pharmacy, University of Munich, Germany (1997-1999)
• Visiting Scholar at the Institute of Pharmacology and Toxicology, Faculty of Medicine, Technical University of Munich, Germany (1999-2000).
• State Doctarate Researcher in the Laboratory of Animal Physiology, Department of Animal Biology, Faculty of Science, University of Yaounde I (2001)
• Post Doctoral Research Associate, National Center for Natural Product Research, School of Pharmacy, University of Mississippi, USA (2001-2003)
• Instructor of Biology, Department of Biology, University of Mississippi (2003-2005)
• Senior Instructor of Biology, Department of Life Sciences, Faculty of Science, University of Buea (2005-2006)
• Assistant Lecturer of Animal Physiology, Department of Plant and Animal Sciences, Faculty of Science, University of Buea (2006-2010)
Lecturer of Physiology, Department of Plant and Animal Sciences, Faculty of Science, University of Buea (2010-2011).
.Senior Lecturer of Physiology, Department of Zoology and Animal Physiology, Faculty of Science, University of Buea (2011-2013).
Part-Time Lecturer of Human Physiology in the Faculties of Health Sciences of the University of Buea (2007 - 2024).
Visiting Lecturer of Medical Physiology in the Medical Schools of the Catholic University of Cameroon Bamenda (in Tobin Nso) (2011-2024)
Guest Lecturer in the Faculty of Health Sciences of the University of Bamenda.(2012-2014)
Visiting Lecturer of Medical Physiology in the Institute of Medical and Biomedical Sciences of the Cameroon Christian University (in the Presbyterian Church Center, Ntamulung, Bamenda)(2011-2013).
Senior Lecturer of Animal Physiology, Department of Biological Sciences, Faculty of Science, University of Bamenda (2013-2024).
Associate Professor of Physiology and Pharmacology, Department of Animal Production Technology, College of Technology, University of Bamenda (2024-Predent)
Head of Department of Animal Production Technology, College of Technology (COLTECH), University of Bamenda (2013-2017).
Head of Division of Internship, Training and Relations with Enterprises and the Business World, Higher Institute of Commerce and Management (HICM), University of Bamenda. (2018- 2022)
Ag Secretary General of the Higher Institute of Commerce and Management (2019-2021)
Head of Division of Teaching and Programs, College of Technology (COLTECH), University of Bamenda (2022-Present)
Ag Secretary General of the Higher Institute of Commerce and Management (2019-2021)
Head of Division of Teaching and Programs, College of Technology (COLTECH), University of Bamenda (2022-Present)
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