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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 Operations Liaison will manage and streamline customer-facing administrative tasks. This role is essential in ensuring smooth communication with clients, maintaining accurate billing records, and keeping customers informed about service schedules and updates in their specific customer portals

Essential Duties & Responsibilities

• Serve as the bridge in communication between our customers, coordinators and their system portals

• Point of contact with clients regarding invoices and services.

• Provide timely updates to customers regarding service schedules, changes, and follow-ups.

• Manage and update customer billing portals with timely information

• Monitor payment statuses and kickbacks on outstanding invoices.

• Upload necessary documentation, reports and service-related records to customer portals

• Track and process NTE (Not to Exceed) increases

• Communicate with customers regarding approvals, ETA’s and communication in general on the status of work.

• Support resolving billing related service issues.

• Work with Billing, Coordinators and customers to bridge the gap in communication.

• Additional Admin related tasks that help streamline this communication and provide the customer with the most up to date information.

• Other duties as assigned

Qualifications

• High School Diploma preferred or equivalent experience

• 2 years' experience in an office environment.

• Microsoft Excel and Word experience required

• Strong oral and written communication skills

• Excellent organization and interpersonal skills

• Excellent customer service communications

\#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

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

**Compensation Range:** $22 - $28 per hour

**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.

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**Job Locations** _US-CA-Irvine_

**ID** _2026-47329_

**Company** _Mesa Energy Systems, Inc._

**Category** _Administrative Services_

**Position Type** _Full-Time_

**Location Type** _Onsite_

**Posted Date** _1 day ago_ _(1/6/2026 2:54 PM)_