Currently, Kun is a Postdoctoral Research Fellow at Queen's University Belfast. He is one of the members of the project titled “Roadmaps to Zero Net Emissions in Urban Public Transport”, under the mentorship of Prof Su Taylor. Before joining the Queen's, Kun was a Research Assistant / Doctoral Researcher at University College Dublin. He used to be one of the members of the MARS-Fly project under the supervision of Dr Arturo Gonzalez. The MARS-Fly project is funded by Science Foundation Ireland, and it is a tri-partite research project between University College Dublin, Queen's University Belfast, and the University of Alabama at Birmingham.