**Description** 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 Department, assist in securing the required certified payroll reports from Mesa subcontractors. + Prepare service invoices including preventative maintenance contracts, T&M, and Quoted work. + Actively monitor accounts receivable aging and make collection calls. + Problem solves collection or slow pay issues to ensure invoices collected as quickly as possible. + Call all accounts and document all contact with the customers. + Take calls concerning invoice disputes and pull all pertinent back up. Review & document dispute with appropriate personnel if not able to come to a conclusion on your own. + Follow up on all disputes to ensure prompt response time. + Prepare construction lien releases + Any other duties as may be required by management. **Job Specifications** (incl. Education requirements, minimal experience, computer skills required, etc.) + Minimum 2 years’ experience in collections. + Strong communication skills, both verbally and in writing. + Comfortable in the use of Word and Excel. + Good organization skills with the ability to follow up. As a leading provider of mechanical and electrical construction, facilities services, and energy infrastructure, we offer employees a competitive salary and benefits package and we are always looking for individuals with the talent and skills required to contribute to our continued growth and success. Equal Opportunity Employer/Veterans/Disabled. **Notice to prospective employees:** There have been fraudulent postings and emails regarding job openings. EMCOR Group and its companies list open positions here. Please check our available positions to confirm that a post or email is genuine. \#Mesa \#LI-mesa \#LI-hvacjobs \#LI-Onsite