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Office Manager / Full Charge Bookkeeper

Trinity Flatwork, LLC
Chesterfield, MO Full Time
POSTED ON 6/21/2026
AVAILABLE BEFORE 10/18/2026

Office Manager / Full-Charge Bookkeeper

Position Overview

We are seeking a highly organized, detail-oriented, and experienced Office Manager / Full-Charge Bookkeeper to oversee the daily administrative and financial operations of our growing concrete company. This position plays a critical role in maintaining efficient office operations, ensuring accurate financial reporting, and supporting management in achieving company goals.

The ideal candidate will be a proactive problem solver with strong bookkeeping expertise, exceptional organizational skills, and the ability to manage multiple priorities in a fast-paced environment.

Qualifications

  • Minimum of 10 years of office management and bookkeeping experience.
  • Associate's or Bachelor's degree in Business, Accounting, or a related field preferred.
  • Proficiency with accounting software; 10 years QuickBooks experience required.
  • Strong knowledge of Accounts Payable and Accounts Receivable
  • General Ledger Accounting
  • Bank and Balance Sheet Reconciliations
  • Payroll Processing
  • Financial Reporting
  • Excellent organizational, communication, and time-management skills.
  • Ability to handle confidential information with professionalism and discretion.
  • Self-motivated, dependable, and capable of working independently.

Key Responsibilities

Financial Management

  • Manage Accounts Payable and ensure vendor invoices are processed accurately and on time.
  • Oversee Accounts Receivable and collections activities.
  • Process weekly payroll, including union dues, benefits, and payroll reporting.
  • Prepare and submit payroll tax and A/R deposits.
  • Perform monthly bank reconciliations and general ledger reconciliations.
  • Prepare journal entries and maintain accurate accounting records.
  • Generate monthly financial statements and assist with financial analysis.
  • Support budgeting and forecasting activities.

Administrative Operations

  • Serve as the primary administrative liaison between office staff, field personnel, vendors, and management.
  • Coordinate onboarding and employee records for new hires.
  • Manage fleet administration, including vehicle registrations, insurance documentation, licensing, and tracking systems.
  • Process incoming mail and maintain company records.
  • Coordinate with the company's CPA and other professional service providers.
  • Assist with insurance administration, including Workers' Compensation, General Liability, and related policies.

Leadership & Support

  • Support company leadership by improving office procedures and operational efficiency.
  • Work closely with the President, General Manager, Superintendent, Contract Administrator, and Administrative Assistant to ensure smooth daily operations.
  • Provide administrative leadership and support to the office team.

Please bring references for consideration.

Job Type: Full-time

Pay: From $85,000.00 per year

Benefits:

  • Dental insurance
  • Health insurance
  • Paid time off
  • Vision insurance

Application Question(s):

  • How many years of Quick books experience do you have?

Experience:

  • Office management: 10 years (Preferred)

Work Location: In person

Salary : $85,000

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