Accounting Administrator

Job Title:

Accounting Administrator

Job Type
Full-time, Exempt

Location:
 Onsite, Dallas, TX

Work Hours
: Standard M-F, with flexibility for start time

Pay Range
: $65-75,000

About MIINC

At MIINC Mechanical Contractors, we don't just deliver complex HVAC, plumbing, piping pre-fabrication and process piping services. We create opportunities for people to develop their skills and build meaningful careers.

Our teams take on high-impact projects across the technology, oil and gas, education, healthcare, and industrial sectors, gaining hands-on experience with innovative solutions.

We believe in empowering people with tools, trust, and opportunities to lead with confidence. At MIINC, you'll find a culture built on accountability, integrity, service, continuous improvement, and servant leadership, where your contributions make a lasting impact.

About the role

We are seeking a skilled Accounting Administrator to join our Services Team. This position plays a vital role in supporting Industrial Services accounting operations by overseeing comprehensive financial management, ensuring invoicing and compliance accuracy, and maintaining critical administration for all Service Customers. The ideal candidate will have hands-on experience in contracting and / or industrial services accounting, a strong understanding of billing processes and compliance requirements, and the ability to thrive in a fast-paced, high transactional volume, and collaborative environment.

This role is responsible for managing accounting and administrative functions from job initiation to closeout. The Accounting Administrator will serve as a key liaison between dispatch, Supervisors, finance (matrix organization), clients, and vendors to ensure timely deliverables, accurate financial reporting, and ongoing compliance.

Key Responsibilities

Industrial Service Accounting & Financial Oversight

• Manage full-cycle accounting, including budget review, job cost tracking and profitability, accounts payable, collections, and financial compliance.
• Review completed jobs, purchase orders, and change orders to validate financial terms and ensure contract alignment when invoicing.
• Collaborate with Supervisors to maximize profitability and reduce cost overruns.
• Support month-end, quarter-end, and year-end financial close processes to ensure accurate reporting.
• Implement service-specific accounting workflows that improve reporting accuracy and cost control.
• Conduct variance analysis on all jobs (GP Target vs Actual) and prepare detailed financial reports weekly.
• Ensure payroll is submitted to the accounting system accurately and timeously.
• Ensure all jobs are invoiced and posted from the Service System (Service Trade / Service Titan)
• Ensure all preventative maintenance billing is managed and maintained

Accounts Receivable

• Prepare, submit, and reconcile payments from all Customers and jobs.
• Monitor aging reports weekly and partner with internal teams to resolve overdue balances.
• Investigate and resolve billing discrepancies to maintain strong client relationships and cash flow.
• Reconcile and ensure accuracy between all systems (Service Titan / Service Channel, Sage, etc)

Accounts Payable

• Coordinate vendor and subcontractor invoice processing, ensuring compliance with contract terms, quotes, proposals and documentation requirements.
• Oversee subcontractor pay applications and track lien releases, insurance compliance, and