Dr. Rajesh Kumar has gained extensive professional experience through various academic and research roles. He currently serves as an Assistant Professor (Guest Faculty) in Chemistry at S.S.J. University, Campus Almora, where he imparts his expertise to students in the field of chemistry. Prior to this, he held positions as an Assistant Professor in Chemistry at Roorkee Institute of Technology (R.I.T) Roorkee, and as a Guest Faculty in Chemistry at Amrapali Institutes of Technology & Sciences Haldwani. Dr. Kumar has also conducted laboratory classes for undergraduate students in Chemistry, providing them with practical training and guidance. Additionally, he has served as a Senior Research Fellow (SRF) and Junior Research Fellow (JRF) at the Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, contributing significantly to research projects and scholarly activities. His tenure as a research fellow has enriched his understanding of various facets of chemistry, including nanochemistry, and has equipped him with valuable skills in experimental design, data analysis, and academic writing.