Kerrar joined Biopharm in 1995 and assumed his current role in 2015. Biopharm operates across various pharmaceutical categories including development, production, wholesale and retail distribution, medical information, and logistics services. As of March 2024, the company manufactures over 150 products. Its subsidiary, Biopharm Distribution, supplies more than 500 medicines to wholesalers, while its Biopure and IMPSA subsidiaries distribute to nearly 4,000 pharmacies. In 2023, it recorded $617 million in sales and $63.3 million in net profit. Kerrar is also the vice president of the Algerian Economic Renewal Council.