Arjun Rachana Harish is currently a Postdoctoral Fellow in the Department of Industrial and Systems Engineering at The Hong Kong Polytechnic University, focusing on blockchain technology and modern generative models for collaborative garment design and logistics environmental, social, and governance (ESG) issues. He completed his PhD in Industrial and Manufacturing Systems Engineering from the University of Hong Kong in 2024, following a bachelor's degree in mechanical engineering from the Indian Institute of Information Technology, Design and Manufacturing, Jabalpur, in 2019.

He has authored or co-authored over 10 articles in international journals and conferences, including IEEE TII and TRE. He has also served as a reviewer for several mainstream international journals, such as EJOR and IJPE.