Demo

Office administrator / Sales Associate

Oneil Building and Supply
Belleville, IL Full Time
POSTED ON 1/8/2026
AVAILABLE BEFORE 2/6/2026
Full job description


Job Posting: Office Administrator & Inside Sales Associate

Company: Oneil Building and Supply

Location: [Insert City, State]

Position Type: Full-Time


About the Role:


This is an opportunity to get in early with a small company that's poised to take off in a major way...

Oneil Building and Supply is looking for a sharp, personable, and detail-oriented Office Administrator/Sales Associate to join our team. This is a high-impact role where you will be the voice of our company, a key player in our sales process, and the "engine" that keeps our billing and supply chain moving.

The ideal candidate is someone who can pivot from a friendly sales conversation on the phone to the high-precision task of invoicing and order management without missing a beat.


Key Responsibilities

  • Customer Relations & Inbound Sales: Act as the first point of contact. You’ll handle inbound calls, qualifying leads and providing a professional, helpful experience for potential clients.
  • Invoicing & Billing: Take the lead on the invoicing process. You will generate accurate invoices for customers, track payments, and ensure our accounts receivable stay up to date.
  • Material Order Management: Navigate various vendor platforms to place and track material supply orders. You will ensure that every component is ordered correctly and scheduled for delivery.
  • Administrative Support: General office management, including filing, data entry, and maintaining organized digital and physical records.
  • Sales Assistance: Assist the sales team by preparing quotes and following up with customers to ensure their project needs are being met.


What We’re Looking For

  • QuickBooks Proficiency: Familiarity with QuickBooks is a major plus. You should be comfortable navigating the software to create invoices and manage basic bookkeeping tasks.
  • The "People" Factor: You are naturally personable and able to build rapport quickly. We need someone who makes our customers feel like they are in good hands from the first "hello."
  • Extreme Attention to Detail: In building supplies, accuracy is everything. You must have the "eagle eye" necessary to catch errors in supply orders or billing statements before they become issues.
  • Inside Sales Experience: A background in inside sales or retail sales is highly preferred. You should be comfortable helping a customer find the right product and helping close the deal.
  • Problem Solver: You don’t just spot a delay in a shipment or a billing discrepancy; you work to find a solution proactively.


Qualifications

  • 2 years of experience in an office administrative, billing, or customer-facing role.
  • Proven experience with QuickBooks or similar accounting/ERP software.
  • High school diploma required; Associate’s degree in Business or Accounting is a plus.
  • Previous experience in construction or building materials is a significant advantage.


Job Type: Full-time

Pay: $20.00 - $22.00 per hour

Expected hours: 40 per week

Benefits:

  • Health insurance
  • Paid time off

Work Location: In person

Salary : $20 - $22

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Office administrator / Sales Associate?

Sign up to receive alerts about other jobs on the Office administrator / Sales Associate career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$48,269 - $61,450
Income Estimation: 
$79,910 - $123,078
Income Estimation: 
$54,802 - $70,174
Income Estimation: 
$52,872 - $80,342
Income Estimation: 
$122,633 - $166,569
Income Estimation: 
$116,413 - $176,962
Income Estimation: 
$89,726 - $245,049
Income Estimation: 
$99,713 - $138,140
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Not the job you're looking for? Here are some other Office administrator / Sales Associate jobs in the Belleville, IL area that may be a better fit.

  • Hannibal Regional Economic Development Council Hannibal, MO
  • Join our dynamic economic development organization as an Office Administrator and help enhance the quality of life in the Hannibal region! HREDC, a communi... more
  • 1 Month Ago

  • Paul Davis Restoration of Metro East Illinois Fallon, IL
  • Benefits: 401(k) Bonus based on performance Competitive salary Dental insurance Health insurance Paid time off Training & development Vision insurance What... more
  • 15 Days Ago

AI Assistant is available now!

Feel free to start your new journey!