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Robert Half Logo Robert Half · Office Administration

Office Manager/ Administrative Assistant

United States, O'Fallon Employment contract 50000.00 USD / Year · Job Posted January 15, 2026
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Job Description

The Office Manager/ Administrative Assistant will assist with the many events the organization attends on a national basis. The Office Manager/ Administrative Assistant will keep registration lists, create name tags, get signs for the golf tournament, for hole sponsorships, send out invitations, etc... This position will answer office phone, update Excel Spreadsheets with month dues and information for events, send out invoices and order office supplies. The Office Manager/ Administrative Assistant will prepare reports and PowerPoint presentations for the Board of Directors.

Job Responsibility

  • Supervise and coordinate daily office operations to ensure seamless functionality
  • Manage procurement and inventory of office supplies, ensuring availability and cost-effectiveness
  • Oversee accounts payable processes, including accurate record-keeping and timely payments
  • Perform receptionist duties by welcoming visitors, handling incoming calls, and managing correspondence
  • Maintain organized filing systems for documentation and records
  • Collaborate with team members to support administrative needs and resolve operational challenges
  • Ensure adherence to company policies and procedures in all office activities
  • Monitor and manage budgets related to office expenses
  • Identify opportunities to improve office efficiency and implement solutions
  • Train and guide staff on administrative practices and office protocols
  • Assist with the many events the organization attends on a national basis
  • Keep registration lists, create name tags, get signs for the golf tournament, for hole sponsorships, send out invitations
  • Answer office phone, update Excel Spreadsheets with month dues and information for events, send out invoices and order office supplies
  • Prepare reports and PowerPoint presentations for the Board of Directors

Requirements

  • Minimum of 5 years of experience in office management or a similar administrative role
  • Proficiency in handling accounts payable processes
  • Strong organizational and time-management skills
  • Ability to manage office supply procurement and inventory effectively
  • Excellent communication skills for receptionist duties and team collaboration
  • Familiarity with maintaining filing systems and records
  • Proven ability to adhere to company policies and procedures
  • Competence in identifying and implementing process improvements

What we offer

  • Benefits are fully covered at no cost for employees
  • medical, vision, dental, and life and disability insurance
  • eligible to enroll in our company 401(k) plan
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