Tanvir is a graduate from NSU in International Business and Marketing. He started his career in BASF as a marketing manager for potential raw materials in Bangladesh and later joined his family company Karim International. In 2013 he opened up Darussalam Publication in Bangladesh and in 2025 he became one of the Directors of Moonstar Packaging Limited. Tanvir Karim directly looks after the marketing activities and also oversees the day to day operations of the company.