Balasubramanian Raman has been a Professor in the Department of Computer Science and Engineering at the Indian Institute of Technology Roorkee since December 2018. Since June 2021, he has been a Joint Faculty in the Mehta Family School of Data Science and Artificial Intelligence at IIT Roorkee. In addition, he has held the iHUB Divyasampark Chair Professor at the Technology Innovation Hub, a joint initiative of the DST, Government of India, and IIT Roorkee, since May 2022. Previously, he served as an Associate Professor in the Department of Computer Science and Engineering from September 2013 to December 2018. Before that, he was with the Department of Mathematics at IIT Roorkee from September 2004 to September 2013, where he served as an Associate Professor and Head of the Computer Vision, Graphics, and Image Processing Laboratory. Currently, he is a Guest Professor/Visiting Researcher at the Institute for Document Analysis Knowledge Science (IDAKS) at Osaka Metropolitan University (Formerly Osaka Prefecture University), Osaka, Japan, a position he has held from February 2020 and will continue to hold until March 2024. He was a Visiting Professor at the School of Electrical Engineering, Computing and Mathematical Sciences, Curtin University, Perth, Australia during December 2023. He was a Visiting Research Professor at the Centre for Research and Graduate Studies at the University of Cyberjaya, Malaysia from January 2020 to January 2021. He has also served as a Visiting Professor and a member of the Computer Vision and Sensing Systems Laboratory in the Department of Electrical and Computer Engineering at the University of Windsor, Canada, during May-August 2009. He began his teaching career as a Lecturer of Computer Science and Information Systems at Birla Institute of Technology and Science, Pilani, India in 2003-04. He was a Postdoctoral Associate in the Department of Electrical and Computer Engineering (ECE) and a member of the Visualization Research Laboratory (VIZ Lab), at Rutgers, The State University of New Jersey, USA, from July 2002 to April 2003. He was also a Postdoctoral Fellow in the Department of Computer Engineering and Computer Science (now the Department of Computer Science, CS) and a member of the Computational Intelligence Research Laboratory (CIRL) at the University of Missouri-Columbia (MU) in Missouri, USA, from October 2001 to June 2002. In 2001, he received his Ph.D. in Mathematics from the Indian Institute of Technology Madras, India. He obtained his B.Sc. and M.Sc. in Mathematics from the University of Madras in 1994 and 1996, respectively.

Over the years, he has held visiting positions in various institutions such as the Department of Computer Science, School of Computing, the SeSaMe Research Centre and N-CRiPT at the National University of Singapore, Singapore; the School of Computer Sciences at Universiti Sains Malaysia in Pulau Pinang, Malaysia; the Faculty of Computing and Informatics at Multimedia University, Cyberjaya Campus, Malaysia; and the Department of Computer Science at University at Albany - State University of New York (SUNY), NY, USA. He was a Visiting Researcher in the Department of Computer Science and Intelligent Systems, Osaka Metropolitan University (Formerly Osaka Prefecture University), Osaka, Japan, under the Japan Science and Technology Sakura Science Plan during June 2018 and December 2019. His other visiting researcher roles were at the Department of Natural Sciences, International Christian University, Tokyo, Japan in June 2018; iCeMS, Kyoto University, Kyoto, Japan in June 2019; the Department of Informatics, University of Milan, Milan, Italy in July 2019; and the Department of Image, Institute of Electronics and Telecommunications of Rennes, Institut National des Sciences Appliquees de Rennes (INSA), Rennes, France in June-July 2019. He was a Guest Scientist at the International Center for Theoretical Physics, Trieste, Italy during September 2000 and September 2001.

Under his coaching, the team "the 65th Bit", comprised of Sharat Ibrahimpur, Dipit Grover, and Tarun Goyal from IIT Roorkee, achieved 60th place in the 37th Annual World Finals of the ACM International Collegiate Programming Contest held in Saint Petersburg, Russia in 2013. The team "Triangulation", comprised of Vaibhav Gosain, Adarsh Kumar, and Saharsh Luthra achieved 56th position in the 42nd Annual World Finals of the International Collegiate Programming Contest held in Peking University, Beijing, China between 15-20 April 2018. The team, "Hold right there Sparky!!", consisting of Devanshu Agarwal, Samarth Joshi, Abhishek Kanhar achieved 41st place in the 43rd World Finals of the International Collegiate Programming Contest held at Porto, Portugal between 31st March - 5th April 2019. The team "Laila", consisting of Rahul Dugar, Aniket Goyal, and Piyush Sethia achieved 62nd rank in the 44th World Finals of the International Collegiate Programming Contest held in Moscow, Russia between 01-06 October 2021. The team "Area 151", consisting of Rahul Dugar, Piyush Sethia, and Harsh Bhartiya achieved 60th rank in the 45th World Finals of the International Collegiate Programming Contest held in Dhaka, Bangladesh during 06-11, November 2022. The team "Kaala Khatta", consisting of Dinesh Goyal, Yatin Khanna, and Ajit Pant entered into 46th World Finals 2022, scheduled to be held from 14th to 19th April 2024 in Luxor, Egypt. The team "Buriburizaemon", consisting of Rudransh Agarwal, Lakshya Joshi and Tejas Sajwan entered into 48th World Finals 2024, scheduled to be held from 14th to 19th September 2024 in Astana, Kazakhstan.

So far he has published over 180 International Journal articles, 150 Conference Proceedings (including Interspeech, ICTAI, IEEE-Cloud, CVPR-w, ICCV-w, ICPR, ACPR, WACV, IJCNN, ICIP and ICVGIP), 10 Edited Books and a Technical report. His areas of research include Computer Vision: Optical Flow Problems, Fractional Transform Theory, Wavelet Analysis, Image and Video Processing, Multimedia Security: Digital Watermarking and Encryption Techniques, Biometrics, Content Based Image & Video Retrieval, Hyperspectral & Microwave Imaging, Visualization and Volume Graphics. He is a reviewer of ICVGIP, IJCNN, Pattern Recognition Letters, International Journal of Computer Mathematics, Journal of Mathematical Imaging and Vision, IEEE Transactions on Information Forensics & Security, IEEE-T-IP, IEEE-T-PAMI and Pattern Recognition. Throughout his career, he has guided 31 Ph.D. students, 52 M.Tech dissertations, and 36 B.Tech projects. He is currently advising 12 Ph.D. students.

He is the recipient of the BOYSCAST Fellowship, awarded by the DST in India. He received the "Outstanding Teacher Award" in 2010 and 2020, both awarded by IIT Roorkee on Teacher's Day. He was also awarded the Chair Professor Fellowship by iHUB Divyasampark, a joint initiative of the DST and IIT Roorkee. In 2022, he received the "Ramkumar Prize for Outstanding Teaching and Research" on Teacher's Day. He was also awarded the ICPC Coach Award 2022 at Dhaka, BANGLADESH for bringing teams to the World Finals five or more times. He is a member of the Sakura Science Club in Japan, a senior member of the IEEE Society, and he served in the IEEE Uttarakhand Sub-section executive committee as joint secretary from July 2011 to March 2013 and later as secretary from April 2013 to January 2018.