Rayan Almutairi is a Senior Quality Supervisor and QC Microbiologist at Almarai since January 2022, overseeing microbiology lab operations and ensuring the accuracy and timeliness of microbiological testing and documentation. Previously, Rayan served as a Microbiologist at أمانة منطقة الرياض from February 2018 to January 2022, where responsibilities included maintaining Standard Operating Procedures, analyzing contamination data, and conducting laboratory calibrations. An internship at King Khalid University Hospital and a summer research internship at the Agricultural University of Athens provided Rayan with extensive practical training in various microbiological techniques. Rayan holds a Master of Science in Microbiology from King Saud University, earned in 2022, and a Bachelor of Science in Microbiology from the same institution, completed in 2017.