Bachar began his academic career as an assistant professor at the University of Science and Technology, Chittagong in June 1996.[4] He joined the Department of Pharmacy at the University of Dhaka as a lecturer in January 1997.[4][6]
Bachar was promoted to assistant professor in July 1998 and later to associate professor in September 2002.[4] He served in both the Department of Pharmacy and the Department of Pharmaceutical Technology in various academic capacities.[4] He became a professor in March 2007 and continued in this role, later serving as Professor in the Department of Pharmacy from May 2014.[4]
In November 2017, Bachar was named in a media report concerning an alleged altercation during a meeting of the Blue Panel, a pro-Awami League teachers' associationat the University of Dhaka.[7] According to allegations reported by bdnews24.com, A. K. M. Jamal Uddin, a faculty member, claimed that Bachar and others were involved in physically assaulting him during the incident.[7]
In January 2021, Bachar was appointed Dean of the Faculty of Pharmacy at the University of Dhaka.[4] As an academic, Bachar has contributed to the development of clinical and hospital pharmacy training in Bangladesh, including implementing training programs at Dhaka Medical College Hospital for pharmacy students.[4]
Bachar was appointed Pro-Vice-Chancellor (academic) of the University of Dhaka in January 2024.[8] He succeeded Professor ASM Maksud Kamal.[9] He is the convenor of the Blue Panel, the pro-Awami League faculty association at University of Dhaka.[8] He is an editor of the International Journal of Medical and All Body Health Research.[10] He is an member of the editorial board of the Dhaka University Journal of Pharmaceutical Sciences.[11]
Despite calls for Bachar and Dr Muhammad Samad to resign as pro-vice chancellors of the University of Dhaka following the fall of Sheikh Hasina led Awami League government, they did not resign.[12] They were replaced by Sayema Haque Bidisha, Mamun Ahmed, and Dr Mohammad Ismail.[12][13] In January 2025, students protested demanding Bachar resign from the University of Dhaka Syndicate Board along with Professor S. M. Bahalul Majnun Chunnu and Dr Md. Nizamul Hoque Bhuiyan.[14] All three were involved with the blue panel and Bachar was President of the Dhaka University Teachers Association.[14][15]