Hii Reem!
There are amole of job options after BSc microbiology, but it is recommended to have higer qualifications in the field such as MSc microbiology or any other specialisation to get good pay. Some of the food science related jobs after BSc microbiology are-
Quality specialist, quality control microbiologist, quality assurance specialist, food safety management system consultant, Pharmacy industries, hygiene inspector, medical coder, clinical research associate, biomedical scientist, research scientist etc.,
Hope this helps.
Good luck!