Collections & Account Administration Coordinator

Collections & Account Administration Coordinator

Sentry Security is a locally owned and established security company proudly serving residential and commercial customers throughout the Chicagoland area. We specialize in alarm systems, fire protection, video surveillance, and access control solutions. Our team is committed to providing reliable service, building lasting customer relationships, and creating a welcoming, collaborative work environment.

About the Position

We are seeking an organized, detail-oriented, and proactive Collections & Account Administration Coordinator to join our team.

This position is primarily responsible for customer collections, billing inquiries, and account maintenance, along with accounts receivable and payable data entry and general administrative support. The ideal candidate is confident communicating with customers, takes ownership of assigned responsibilities, and consistently follows through on outstanding tasks.

Key Responsibilities

Collections

• Review accounts receivable aging reports and proactively contact customers by phone and email regarding outstanding balances.
• Manage collection follow-ups, including outstanding invoices, promised payments, and unresolved accounts.
• Accurately document collection activity, customer communications, payment commitments, and follow-up actions within Sentry's system.
• Identify and escalate collection issues requiring management attention.

Customer Account Administration

• Answer incoming customer calls, address billing and payment inquiries, and securely process payments over the phone.
• Update and maintain customer Bill To information, including billing contacts, addresses, and account details.
• Investigate billing disputes and invoice discrepancies, coordinating with internal departments to resolve issues.

Accounting & Administrative Support

• Accurately enter and apply customer payments and other accounts receivable transactions.
• Enter vendor invoices, prepare scheduled accounts payable check runs for management approval, and organize and file related AP documentation.
• Provide customers with requested company documents, including Sentry's W-9, ACH Banking Letter, and other applicable forms.
• Assist with other accounting-related administrative tasks as needed.

Qualifications

• Minimum of 1–2 years of experience in collections, accounts receivable, billing, or a related administrative/accounting role.
• Experience handling customer billing inquiries and making outbound collections calls.
• Strong attention to detail, organizational skills, and accurate data-entry abilities.
• Professional, confident, and courteous written and verbal communication skills.
• Ability to work independently, prioritize responsibilities, and consistently follow through.
• Proficiency in Microsoft Office, particularly Outlook.
• Ability to handle confidential customer and financial information responsibly.
• Ability to successfully complete a background check, including fingerprinting, as a condition of employment.

What We Offer

• Health and dental insurance
• 401(k) retirement plan with company matching
• Friendly, supportive team environment
• Stable, established company

Compensation: Full-Time, Salaried Position – $44,000 - $50,000

Schedule: 8-hour shift, Monday to Friday at our office in Wheeling IL 60090

If you're organized, confident working with customers, and take pride in seeing your responsibilities through to completion, we'd love to hear from you.

• Apply today to join the Sentry Security team!

Job Type: Full-time

Pay: $44,000.00 - $50,000.00 per year

Benefits:

• 401(k)
• 401(k) matching
• Dental insurance
• Health insurance
• Paid time off

Ability to Commute:

• Wheeling, IL 60090 (Required)

Work Location: In person