WORK EXPERIENCE

• 1/1/2019 – Present: Prof. of Analytical/ Environmental Chemistry, Machakos University, Dept.of Physical Sciences
• June 19th -21st 2018: Successfully organized an international Research conference titled “TheRole of Alumni Networks in Mentorship and Collaboration in Multidisciplinary Research”:
  Foundation for Kenya’s Vision 2030 co-funded by Alexander Von Humboldt of Germany andDAAD –Germany held in Nanyuki, Kenya
• May-July, 2017: Research study visit in Research center Juelich, Germany.
• 14/10/14- 31/12/2018: Prof. of Analytical/ Environmental Chemistry, Chuka University, Dept. of Physical Sciences
• 2012 – 14/10/14: Prof. of Analytical/Environmental Chemistry, Masinde Muliro University of Science and Technology (MMUST), Chemistry Department
• 2/07/2015-Present: External peer reviewer for Commission for University Education in Kenya
• 1/04/2015-Present: Director, Research, Extension and Publications, Chuka University
• 1/01/2009 – 8/8/2014: Director of Research, Extension services and Linkages
• 2008-2012: Associate professor in Chemistry, MMUST, Kenya
• 2007-2008: Director Institute of Graduate Studies and Research
• 2003- 2007: Senior lecturer in Chemistry, MMUST, Kenya
• 2003-2005: Chairman of the Chemistry Department, MMUST, Kenya
• 1994-2002: Lecturer in Chemistry, Maseno University, Kenya
• 1992-1994: Assistant Lecturer in Chemistry, Maseno University, Kenya
• 1988-1991: Water chemist in the Ministry of Water and Development, Kenya

PROFESSIONAL BODIES AND ASSOCIATIONS

• Member of Kenya Chemical Society (KCS)
• Member of DAAD Scholars Association of Kenya (KDSA)
• Fellow of the Alexander Von Humboldt (AVH)
• Founder member of the African-German network of Excellence in Science (AGNES)
• Alumni of the University of Bayreuth, Germany
• Alumni of the International foundation for Science (IFS)
• President, Humboldt Fellows in Kenya Association (AVHF-K)
• Alumni of The World Academy of Sciences (TWAS)