Construction Office Administrator

Benefits: Bonus based on performance Competitive salary Flexible schedule Health insurance Opportunity for advancement Paid time off Position Overview The Construction Office Administrator will provide administrative and financial support across multiple departments, including accounting, project management, and human resources. This position requires a highly organized individual who can multitask in a fast-paced environment and who understands the construction industry’s unique needs—especially around billing, compliance, and documentation. Accounting & Billing Support: Process accounts payable and accounts receivable transactions Prepare, track, and submit AIA billing, lien waivers, and insurance certificates. Reconcile invoices, purchase orders, and credit card statements Maintain accurate records in accounting software and assist with monthly closeout HR & Administrative Support: Assist with onboarding new employees and maintaining personnel files Manage time tracking, payroll support, and benefits coordination Maintain office supply inventory and order materials as needed Answer phones, coordinate mail and deliveries, and support project teams with document management General Office Management: Organize and maintain digital and physical filing systems Schedule meetings, manage calendars, and assist with internal communications Provide support to project managers, estimators, and executives as needed Requirements Minimum of 5 years’ experience in a construction office or similar administrative role Working knowledge of AIA billing, lien waivers, and construction compliance documentation Familiarity with accounting software such as Sage Intacct, QuickBooks, or similar platforms Proficient with Microsoft Office Suite (Word, Excel, Outlook) Strong communication and organizational skills Able to prioritize tasks and work independently with minimal supervision What We Offer Competitive compensation based on experience Health, dental, and vision insurance Paid time off and holidays Opportunities for growth within a fast-paced construction environment Laid back working environment and flexible schedule About Key Construction Group Key Construction Group is a full-service general contracting and construction management firm serving Michigan and Ohio. We specialize in commercial, industrial, institutional, and multi-family construction projects. As our company continues to grow, we’re looking for a detail-oriented and proactive Office Administrator to join our team and support the daily operations of our office and field staff.

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