Since 2015, Seth has been instrumental in the execution of Ghana's nuclear power infrastructure development. He has been involved in several International projects including the IAEA TC projects and coordinated research projects. He has served as the chief scientific investigator and alternate for many projects. Currently, Seth is the project counterpart (for Ghana) for the IAEA TC project (GHA2005) - Establishing Nuclear Power Infrastructure for Electricity Generation. Seth is also IAEA-AFRA national coordinator for RAF2013 (Developing, Expanding, and Reinforcing Energy Planning Capabilities - Phase II).
Even though Seth focuses on nuclear power infrastructure development, he still maintains an interest in the Nuclear Engineering Department under the School of Nuclear and Allied Sciences, University of Ghana, where he serves as an associate professor of nuclear engineering.