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Office Administrative Manager

ECS Southwest, LLP
United States, Texas, Carrollton
3033 Kellway Drive (Show on map)
Sep 06, 2025

Responsibilities

Reposibilities

  • Manage all administrative functions of the office include maintaining accounting, human resources, payroll and other duties as assigned.
  • Manage HR and Accounting at the office level.
    • Process payroll, accounts payable, accounts receivable.
    • Process new hire, termination, and employment verification paperwork.
    • Track immigration status.
    • Process benefits (including new enrollments, open enrollment and update as required).
    • Assist with warning reports and disciplinary actions.
    • Assist employees with processing leave of absence and short-term disability claims.
    • Assist with other HR issues as needed.
    • Enter vendor invoices into the accounting system accurately and timely.
    • Reconcile vendor statements and resolve discrepancies.
    • Generate and send invoices to customers in accordance with contract terms.
    • Monitor outstanding invoices and ensure accurate records are maintained.
    • Follow up on past-due accounts via phone and email.
    • Work with customers to resolve billing issues.
    • Maintain accurate records of collection efforts and provide reports on aging receivables.
    • Oversee building and equipment maintenance.
    • Maintain and update certificates of insurance.
    • Responsible for ordering and support for computers, phones, and other devices.
    • Support administrative management of the office.
    • Track and update professional licenses.
  • Support Management Group with special projects, reports, meetings, and training.
  • Attend and participate with monthly management group meetings.
  • Other duties as assigned.

Qualifications

Qualifications

  • High school diploma or GED and relevant certification (SHRM-CP or PHR) required. Bachelor's degree (HR related) preferred.
  • Minimum 4 years of HR and payroll experience with an HR degree
    • 6 years of HR and payroll experience without an HR degree.
  • If driving for, or on behalf of, any ECS subsidiary, a valid driver's license is required.

About Us

ECS is currently ranked #66 in Engineering News-Record's Top 500 Design Firms (April 2025), #144 in Engineering News-Record's Top 200 Environmental Firms (October 2024) and #50 in Zweig Group's Hot Firm List (June 2025).
ECS is an Equal Opportunity Employer. To learn more, click here.
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