Hackensack Meridian Mountainside Medical Center is an 820,000-square-foot facility that offers the latest medical programs, cutting-edge technology, and patient-focused care that includes 365 beds, 1,200+ employees, and a 27-bed Emergency Room/Fast Track Unit. Responsibilities: The Medical Laboratory Assistant (MLA) functions as a laboratory professional who assists other laboratory personnel in specimen collection, specimen receiving, specimen processing, laboratory testing, process improvement and quality initiatives.