Mechanical Service Administrator in Saint Louis

Service Administrator – Mechanical Service

Greater STL Area

A well-established contractor is seeking a Service Administrator to join their growing service team. This role is perfect for someone who is detail-oriented, organized, and ready to support both financial operations and customer service within a fast-paced mechanical service department.

Key Responsibilities

• Handle daily accounting functions, including invoicing, work orders, purchase orders, and job cost tracking.

• Reconcile service-related financials and prepare reports for month-end close.

• Monitor accounts receivable and follow up on outstanding payments.

• Process vendor invoices and ensure proper coding and documentation.

• Provide administrative support to service teams while ensuring accuracy and efficiency.

• Deliver professional customer service by addressing client questions and resolving issues.

What We’re Looking For

• 1+ years of experience in service administration, accounting, customer service, or related role.

• Strong organizational skills with ability to manage multiple tasks and deadlines.

• Proficiency in Microsoft Office Suite (Outlook, Word, Excel, Teams, PowerPoint).

• HVAC or mechanical industry knowledge is a plus, but not required.

• Positive attitude, strong communication, and attention to detail.

Benefits

• Employee Stock Ownership Program (ESOP)

• Competitive salary + discretionary annual bonus

• Health, Dental & Vision Insurance

• 401(k) with company contributions

• PTO, holidays, and parental leave

• Tuition reimbursement

• Employee assistance program (EAP)

• Gym reimbursement

How to Apply

Send your resume to anna.boyd@gogpac.com or apply directly through this posting.

Related titles: Service Coordinator, Administrative Assistant, Accounting Assistant, Service Support Specialist, Customer Service Administrator