Mesa Energy Systems is a wholly owned subsidiary of EMCOR Group, Inc. EMCOR is the world's leading provider of mechanical and electrical construction and facilities services, including planning, consulting, and operations and maintenance. Mesa Energy Systems is a HVAC mechanical services company that provides fully integrated solutions for preventative maintenance and repair, upgrading existing mechanical, electrical, and controls systems to provide the most efficient economic solutions to meet customer expectations. Job Title: Billing Coordinator (AR) Principal Duties and Responsibilities Coordinating with Project Mangers, track monthly progress billings and prepare and submit invoices for all construction jobs. Review construction contracts for billing terms and conditions and ensure invoices are prepared accordingly. Work with subcontractors to obtain appropriate documentation to support invoice packages, including securing the appropriate lien releases. Working with the Payroll Dep...Billing, Coordinator, Mechanical, Manufacturing, Accounting, Construction