Accounts Receivable Administrator

First Onsite • Mississauga, Ontario • Full Time

Posted on Wed, Jul 1, 2026

This posting is for a current opening. Salary range: 46-50K based on experience.

Are you someone who enjoys solving problems, staying organized, and making sure every detail is accurate? Do you take pride in providing great customer service while keeping financial processes running smoothly? If so, we'd love to have you join our team as an Accounts Receivable Administrator.

In this role, you'll help ensure customer payments are processed accurately, outstanding balances are managed effectively, and billing questions are resolved professionally. Your work will directly support healthy cash flow, strong client relationships, and the financial success of our organization.

A DAY IN THE LIFE OF AN ACCOUNTS RECEIVABLE ADMINISTRATOR

As an Accounts Receivable Coordinator, you play an important role in keeping customer accounts accurate and up to date. You'll process customer payments received through a variety of methods, apply insurer bulk payments across multiple invoices, and maintain records of unapplied cash while working closely with teammates to ensure payments are correctly allocated.

You'll monitor outstanding balances, follow up with customers according to established collection timelines, and respond to questions about invoices, payments, and account status with professionalism and care. When more complex issues arise, you'll gather the necessary information and partner with senior team members to reach a resolution.

Your attention to detail also supports month-end reconciliations, financial reporting, and audit preparation. Every day, your accuracy, organization, and commitment to excellent service help strengthen our financial operations and create a positive experience for both customers and internal teams.

Qualifications

Who We Are

At First Onsite, the work you do every day makes a real impact. You'll help communities rebuild and families recover after unexpected events. We offer competitive pay, comprehensive health and dental benefits, and RRSP matching because we believe in taking care of our people. You'll have opportunities to learn, grow, and build a lasting career across Canada in a culture that values care, collaboration, and doing the right thing.

Let's Rebuild Together

Your next opportunity starts here. Apply today using our quick, mobile-friendly application. Join First Onsite. Make a difference. Build your future.


By submitting your application, you consent to the collection, use, disclosure, and storage of your personal information by FirstOnsite Restoration Limited operating as First Onsite Property Restoration ("First Onsite") for purposes related to your application for employment. This includes information gathered during the recruitment and interview process. Your personal information may be shared internally with relevant personnel involved in the hiring process.

First Onsite is committed to handling your personal information in accordance with applicable federal and provincial privacy laws, including the Personal Information Protection and Electronic Documents Act (PIPEDA) and any other relevant privacy legislation in your province or territory. If you have questions about how your personal information is handled, or if you wish to request access to your information, please contact our HR Department.

In accordance with the Accessibility for Ontarians with Disabilities Act, 2005, and the Ontario Human Rights Code, First Onsite Restoration will provide accommodations throughout the recruitment and selection process to applicants with disabilities. If selected to participate in the recruitment and selection process, please inform Human Resources or the Hiring Manager of the nature of any accommodation(s) that you may require in respect of any materials or processes used to ensure your equal participation.

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