Alamgir started career in British Pharmaceutical Company May & Baker (currently Sanofi Aventis) in 1976.[2]
Alamgir worked from 1992 to 1998 at Jamuna Group as group marketing director.[3] The company had launched their Pegasus Shoes brand in 1992.[4] Within two years he built it into the second largest footwear brand in Bangladesh, after Bata.[5] In 1993, Jamuna launched their Aromatic line of cosmetics.[4] By marketing Aromatic soap as halal, containing no animal fats, Alamgir helped it capture a 14% market share in the country in its first year.[6][7] By replacing the tin toothpaste tubes then used in the local market with laminate tubes, Alamgir helped Aromatic toothpaste capture a 15% market share in Bangladesh.[8]
Alamgir joined ACI Limited in 1998 as executive director. At the time, it was primarily a chemical company, with just two consumer products,[8] Aerosol household insecticides and Savlon antiseptics.[9][10] Alamgir launched 17 new product lines under ACI,[1] including ACI Salt and PURE foods.[8] He was promoted to managing director of ACI Consumer Brands in 2017.[1]
Alamgir is serving as President of Bangladesh Vacuum Salt Manufacturers' Association, Bangladesh Sanitary Napkin & Diapers Manufacturers' Association, MBA Association of Bangladesh, Bangladesh-Greece Chamber of Commerce and Industry (BGCCI).[11]