Office Administrator

Office Administrator

Location: Grand Junction, Colorado
Department: Human Resources & Administration
Reports To: Human Resources Manager
Works Closely With: Accounting Manager, Service Manager, Shop Manager, and other company leadership
FLSA Status: Non-Exempt (Hourly)
Pay Range: $22.00–$28.00 per

Reports To: Human Resources Manager

Position Summary

Grand Mesa Mechanical, Inc. (GMMI) is seeking a highly organized, detail-oriented, and customer-focused Administrative Coordinator to support daily office operations across Human Resources, Accounting, Service, and Shop Operations.

This position reports directly to the HR Manager while working closely with the Accounting Manager, Service Manager, and Shop Manager. The ideal candidate is dependable, adaptable, comfortable managing multiple priorities, and committed to providing exceptional customer service while maintaining strict confidentiality.

Key Responsibilities

• Customer Service: Answer incoming calls, assist customers and vendors, respond to inquiries, coordinate communications, and follow up on service and billing matters.
• Service Administration: Create and process service tickets, assist with scheduling, maintain service documentation, and coordinate with service personnel.
• Shop Support: Assist the Shop Manager with work orders, paperwork, billing preparation, material documentation, and general administrative needs.
• Billing & Accounting: Prepare invoices, reconcile information between Sage and BuildOps, process payments, organize financial records, and assist with accounts payable and receivable documentation.
• Human Resources: Support the HR Manager with onboarding, employee records, recruitment coordination, training documentation, employee communications, and other HR administrative duties.
• Office Administration: Maintain accurate company records, organize job files, manage office supplies, distribute mail, and provide general administrative support.
• Customer & Business Errands: Coordinate customer follow-ups, pick up customer checks or payments, deliver documents, and complete other approved business-related errands.
• Confidentiality: Protect sensitive employee, payroll, financial, customer, and company information while maintaining professionalism and discretion.
• Team Collaboration: Work closely with department managers to ensure accurate documentation, timely billing, efficient communication, and smooth daily operations.

Qualifications

• High school diploma or GED required; associate degree in Business, Accounting, Human Resources, or related field preferred.
• Two or more years of administrative, customer service, office coordination, or accounting support experience preferred.
• Strong communication, organizational, multitasking, and problem-solving skills.
• Proficiency in Microsoft Office, including Outlook, Word, and Excel.
• Experience with Sage, BuildOps, or similar business software preferred.
• Experience in construction, HVAC, plumbing, or a service-related industry is a plus.
• Ability to work independently, take initiative, meet deadlines, and adapt to changing priorities.
• High level of professionalism, reliability, attention to detail, and commitment to confidentiality.

Compensation & Benefits

Pay Range: $22.00–$28.00 per hour, based on experience and qualifications.

Grand Mesa Mechanical offers a competitive benefits package, including medical, dental, vision, retirement benefits, paid time off, paid holidays, and professional development opportunities, subject to eligibility and plan terms.

Why Join Grand Mesa Mechanical?

At Grand Mesa Mechanical, you'll be part of a collaborative team that values professionalism, accountability, teamwork, and excellent customer service. This position offers an opportunity to develop skills across multiple business functions while playing an important role in supporting our employees, customers, and daily operations.

Equal Employment Opportunity

Grand Mesa Mechanical, Inc. is an Equal Opportunity Employer. We are committed to providing a workplace free from discrimination, harassment, and retaliation and consider all qualified applicants without regard to any status protected by applicable law.

Interested in joining our team? Apply today! This position will be posted until 10/31/2026.

Pay: $22.00 - $28.00 per hour

Expected hours: 40.0 per week

Benefits:

• 401(k)
• 401(k) matching
• Dental insurance
• Flexible spending account
• Health insurance
• Health savings account
• Life insurance
• Paid time off
• Professional development assistance
• Retirement plan
• Tuition reimbursement
• Vision insurance

Work Location: In person