Simeon graduated from the University of Malawi (Malawi) with a BSc degree in Physics and Mathematics, and BSc Hons (first class) in Physics and Electronics in 1997 and 1999, respectively. In 2000, Simeon took up a post as an assistant lecturer at the University of Malawi, teaching undergraduate courses in Physics and Electronics.

He received an MPhil in Engineering from the University of Cambridge in 2002, following which he went back to rejoin the University of Malawi as a lecturer.

He obtained a PhD degree in Electrical and Electronic Engineering from the University of Nottingham in 2010. His PhD research investigated the nonlinear effects in semiconductor optical amplifiers (SOAs). This was achieved by developing detailed numerical time-domain models that included all of the relevant physics and represented spectral characteristics accurately in the time-domain. The models were used to study wave mixing from first principles and noise processes in SOAs.

Following his PhD, Simeon took up a post as a Research Fellow in the School of Electrical and Electronic Engineering working on the EC Project COPERNICUS on the electrical modelling of photodiodes and nano-photonic devices. Simeon plays an active role in the day-to-day coordination of PRFEG's modelling activities. His research interests include the design and analysis of optoelectronic devices, functional photonics and the development of robust simulation tools.