Administrative Assistant

The County Materials Family of Companies manufactures and delivers concrete construction products to meet the demand for growing communities. Since 1946, we've relied on our talented and dedicated team members to provide reliable products with personalized service.

We're hiring an Administrative Assistant to join County Materials in St. Louis, MO.

The Administrative Assistant is responsible for receptionist and general administrative duties, including answering phones, greeting visitors, timecard review, data entry, accounts payable assistance, and benefits support. This position requires strong organizational skills, confidentiality, attention to detail, and the ability to multitask in a fast‑paced office setting.

• Serve as the primary receptionist, answering phones, greeting visitors, and providing general clerical support
• Provide administrative assistance with employee benefits inquiries, directing questions to appropriate resources
• Review and verify employee timecards for accuracy at the location level
• Perform data entry, maintain spreadsheets, and generate reports as needed
• Act as the accounts payable liaison for the location, supporting the accounting team with documentation and data entry
• Maintain organized physical and digital filing systems and accurate records
• Support overall office organization, upkeep, and administrative compliance
• Perform other administrative duties as assigned

• Integrity & Organizational Awareness
• Customer First Focus
• Results Driven Orientation
• Teamwork, Safety & Collaboration
• Problem Solving & Decision Making
• Creativity & Innovation

• Attention to Detail & Time Management
• Communication Coordination
• Professional Service
• Meeting & Event Coordination
• Information & Data Management
• Confidentiality
• Critical Thinking & Motivation

• High School diploma or equivalent
• 1-2 years of administrative or related experience (preferred)
• Proficiency in Microsoft Office (Word, Excel, Outlook)
• Strong written and verbal communication skills
• Solid basic math and data accuracy skills
• Highly organized, proactive, and able to handle multiple priorities
• Self‑motivated team player with a positive attitude and strong attention to detail
• Ability to handle confidential information responsibly

• Professional office‑based environment
• Regular interaction with employees and visitors
• Standard hours:
  Monday‑Friday 7:30 AM – 4:30 PM
• Overtime may be required as needed

• Frequent standing, walking, bending, reaching, or handling materials/equipment
• Occasional climbing, kneeling, crawling, or lifting/moving up to 40 pounds
• Ability to concentrate, follow detailed instructions, communicate effectively, and safely perform job duties
• May require the operation of specific tools, equipment, or vehicles associated with the position

• Health, dental and vision insurance
• Paid Short‑term & Long‑term disability
• 401(k) match
• 8 Paid holidays
• Paid Time Off
• Referral rewards program
• Wellness program with rewards
• Flexible Savings Options
• Employee Assistance Program
• Paid Life Insurance
• $200 Boot Allowance
• Safety focused: GUARD for Life
• Voluntary critical illness & accident insurance
• Optional Uniform Program

County Materials Family of Companies is an EEO/Affirmative Action Employer; all qualified applicants will receive consideration for employment without regard to any characteristic prohibited by federal, state and/or local laws.

We participate in E‑Verify to confirm employment eligibility for all new hires.