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Mary Rathnau is an experienced professional with a strong background in sales service coordination and operations management. Currently serving as Sales Service Coordinator at Advance Mechanical Systems, Inc. since March 2019, Mary is responsible for managing customer communications and coordinating a team of thirty-five service and plumbing technicians. Prior roles include Service Operations Specialist at WJ O'Neil Chicago LLC, where responsibilities encompassed quality control on invoicing and accounts management, and Operations Coordinator at Elara Engineering, overseeing project planning and documentation. Previous experience includes a long tenure at Control Engineering Corp, where Mary managed purchasing, service agreements, and inventory control while ensuring customer satisfaction. Early career highlights include serving as a Claims Supervisor at Yes Check Services and Managing Editor at Scranton Gillette Communications. Mary holds a Bachelor's degree in Communications from Benedictine University and an Associate's degree from Robert Morris University - Illinois.