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Office Administrator

What You'll Do:
Resposibilities
  • Perform accounting, human resources and other administrative duties with supervision.
  • Process payroll, accounts payable, accounts receivable and invoicing.
  • Track and document the petty cash/corporate credit card accounts by writing checks, requesting replenishments, reconciling bank and internal accounting balances.
  • Process new hire, job changes, pay rate changes, and terminations
  • Complete various human resource related forms, such as employment verification paperwork.
  • Track immigration status and updating I-9s as required.
  • Process benefits (including new enrollments, open enrollment and update as required).
  • Assist with warning reports.
  • Process leave of absence and short-term disability claims.
  • Assist with other HR issues as needed.
  • Maintain and update certificates of insurance.
  • 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.
  • Responsible for computer network support.
  • Support receptionists and administrative management of the office.
  • Other duties as assigned.
What We're Looking For:
Qualifications
  • High school diploma or GED. Bachelor's degree (HR related) preferred.
  • Minimum 2 years of experience of HR and payroll experience with an HR degree
    • 4 years of HR and payroll experience without an HR degree.
The expected pay range for this role and location is $27-$33/hour. The final agreed-upon compensation will be determined based on specific location and other individual qualifications.
Who We Are:
ECS Group of Companies (ECS) was founded in 1988 with the goal to raise the standards of professional engineering consulting. Today, we are a leader in geotechnical, construction materials, environmental and facilities consulting services. We are employee-owned with more than 3,000 employees in 100+ offices and testing facilities coast to coast. ECS is currently ranked #66 in Engineering News-Record’s Top 500 Design Firms (April 2025), #148 in Engineering News-Record’s Top 200 Environmental Firms (October 2025) and #50 in Zweig Group’s Hot Firm List (May 2025). For additional information about ECS, visit: www.ecslimited.com.

ECS is an Equal Opportunity Employer. To learn more, click here.

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