Administrative Clerk

Sumner One is hiring an Administrative Clerk to support our Accounting Department. You’ll be hands on with mail processing, invoicing, credit card payment processing, document management, and general administrative support. This is a great opportunity for someone who enjoys organization, data entry, document management, and administrative support and wants hands-on accounting exposure!

Responsibilities

• Sort, process, and route incoming and outgoing mail and invoices
• Scan and index documents (tax-exempt forms, insurance, accounting files)
• Monitor and respond to department email inboxes
• Process W9 and Certificate of Insurance requests
• Support Accounts Payable and Cash Applications functions
• Process customer payments and deposit checks
• Assist with month-end closing tasks
• Maintain accurate digital and physical file records
• Provide clerical/administrative support to the accounting team

Qualifications

• 1+ years of administrative experience in an office environment
• Coursework or experience in Accounting or Business Administration preferred
• Proficiency with Microsoft Office (Excel, Outlook, Word)
• Strong attention to detail with consistent follow-through
• Excellent organizational and multitasking skills
• Clear written and verbal communication abilities
• Professional, reliable work habits with the ability to manage competing priorities

Requirements

• Must be authorized to work in the U.S. and pass pre‑employment screenings
• Fluency in spoken and written English is required to effectively communicate with clients, team members, and stakeholders, and to perform the essential functions of this role

Why Sumner One?

• Work‑Life Balance: As a family‑owned company, we value work‑life balance and make it a priority for all our employees
• Career Growth: We’re committed to your growth, offering numerous opportunities for career advancement and professional development
• Benefits from Day One: Medical, dental, vision, life & disability, and paid holidays
• 401(k) & Profit Sharing: Benefit from our 401(k) plan and profit‑sharing opportunities to secure your financial future
• Make an Impact: Make a real impact as a key member of our Culture Committee, contributing to a workplace that prioritizes empowerment and collaboration

General Information:

• Job Type: Full Time, M-F, 8AM-5PM
• Location:
  
  St. Louis, MO.

Sumner One is one of the premier office technology dealers in the Midwest, with offices in Missouri, Kansas, Oklahoma, Arkansas, and Illinois. We’re a family of respected companies united by ONE goal: to exceed our customers’ expectations by helping them get the most from their investments in print, IT and document technology. Headquartered in St. Louis, Missouri, we are proud to say we’ve grown to become one of the largest independent dealers in the nation.

We have accomplished this by employing the best people, representing solutions from leading manufacturers of office technology, and by supporting our clients at the highest level. Our success is evident by our continued growth with our people being the key to that success.

Sumner One is proud to be an Equal Opportunity Employer