Dr. Varun Tiwari is working as an Associate Professor at the Department of Computer Science and Information Technology in Don Bosco Institute of Technology, which is affiliated to Guru Gobind Singh Indraprastha University, Delhi. He has been teaching for more than 15 years at a college associated with GGSIP University. He has published more than 25 research papers, as well as books and book chapters, in peer-reviewed national and international journals, including UGC Care, Scopus, and WOS. His areas of interest are Cloud Computing, Big Data, Cyber Security and Machine Learning.