06.2007 - 06.2008 Teaching Assistant, Dept. of Mathematics, KNUST, Kumasi, Ghana.

03.2010 - 09.2011 Project employee at "Doktoratskollegs" Computational Mathematics, JKU, Linz, Austria.

09.2012 - 02.2016 Research Scientist in the FWF NRN Project "Geometry+Simulation", Linz, Austria.

03.2013 - 04.2017 Associated Doctorate at "Doktoratskollegs" Project DK4, Linz, Austria.

09.2016  - Guest Research Scientist at National Institute of Mathematical Science, Kumasi, Ghana. 

03.2016 - 12.2016 Research Engineer at Prozess Optimal Engineering, Ottensheim, Austria.

02.2017  - Guest Research Scientist at National Institute of Mathematical Science, Kumasi, Ghana. 

08.2017 - 10.2018 Helen Doron English Teacher at Helen Doron English, Linz, Austria.

09.2017 -  01.2018 Product Development Engineer at RAG Rohöl-Aufsuchungs Aktiengesellschaft, Vienna, Austria.​​

02.2018 - 01.2019 Project Manager & Research Scientist, Engineering Software Steyr, Austria.

11.2018 - 07.2021, Lecturer, Department of Mathematics, University of Cape Coast, Ghana.

08.2021 - Present, Senior Lecturer, Department of Mathematics, University of Cape Coast, Ghana.

01.2020 - Present, Co-founder, Ghana Natural Language Processing

12.2020 - Present, Founder, Ghana Numerical Analysis  

03.2021 - Present, Research Fellow, The Regional Transport Research and Education Centre, Kumasi (TRECK)