**About Us** We are a full-service HVAC, building automation, chiller, and retrofit contractor with a reputation for combining high-quality consulting services with customized energy solutions. Our integrated, single-source solutions include turnkey in-house capabilities with design assistance, as well as engineering applications and automated control systems. **Job Summary** The primary responsibilities of this position are to ensure that all project related invoicing for operations are paid within the guidelines set by the Credit & Collection Manager. This requires constant interaction and documentation of all interactions with all levels of management and the customer. **Essential Duties & 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. **Qualifications** • Associate degree or higher in Accounting or Finance, preferred. • 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. \#Mesa #LI-Mesa #LI-HVACjobs #LI-Onsite **Equal Opportunity Employer** 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 **Affirmative Action Policy** Please review ourAffirmative Action Policy (https://emcorgroup.icims.com/icims2/servlet/icims2?module=AppInert&action=download&id=125196&hashed=-2134526997) . **Notice to Prospective Employees** Notice to prospective employees: There have been fraudulent postings and emails regarding job openings. EMCOR Group and its companieslist open positions here (https://careers-emcorgroup.icims.com/) . Please check our available positions to confirm that a post or email is genuine. EMCOR Group and its companies do not reach out to individuals to help with marketing or other similar services. If an individual is contacted for services outside of EMCOR’s normal application process – it is probably fraudulent. **Geographic Disclosure** **Benefits:** We are committed to providing employees a comprehensive benefits package which includes medical, dental, and vision coverage, along with health savings and flexible spending accounts, life insurance, disability, a 401(k) Savings Plan, College Coach and employee assistance program. Email a Friend Email a Friend **Job Locations** _US-NV-Reno_ **ID** _2026-48000_ **Company** _Mesa Energy Systems, Inc._ **Category** _Administrative Services_ **Position Type** _Full-Time_ **Location Type** _Onsite_ **Posted Date** _1 day ago_ _(2/4/2026 1:21 PM)_