Join FIRST ONSITE as a Billing Administrator in Mississauga!

We're looking for a detail-driven Billing Administrator to work out of our head office on our Finance team. In this role, you'll play a key part in generating accurate and timely invoices, supporting project billing from start to finish, and collaborating with teams across the company and "country". If you thrive in a fast-paced environment and have a knack for numbers, this is your opportunity to contribute to a purpose-driven organization that supports families and communities in times of need.

A Day in the Life of a Billing Administrator

Your day starts with a hot coffee and a quick check-in with the operations team to align on priorities. You dive into drafting invoices, double-checking details like tax rates and customer info - because accuracy is your superpower.

Mid-morning, you collaborate with A/R to clear up a mystery payment (spoiler: you solve it) and issue a credit memo that helps straighten out a client's account. After lunch, it's onto processing progress billings and responding to a few questions from site teams who appreciate your calm, can-do attitude. You wrap up the day proud, knowing your work keeps projects moving and FIRST ONSITE clients happy.

QUALIFICATIONS

• A diploma or degree in Accounting, Finance, or Business Administration (preferred)
• Proven experience in billing, accounting, or administrative roles - bonus points for experience in the construction or restoration industry
• Proficiency with invoicing software and accounting systems such as QuickBooks, SAP, or NetSuite
• Familiarity with electronic billing platforms and ERP systems
• A solid understanding of federal and provincial tax regulations
• Exceptional attention to detail and strong organizational skills
• Clear, professional communication and a customer-focused approach
• The ability to manage multiple priorities and meet tight deadlines
• Confidence using Microsoft Office, especially Excel
• The ability to pass a background check

ARE YOU READY TO JOIN OUR TEAM?

If you have experience working on a Billing or an Accounts Payable or Receivable team and love identifying discrepancies and you feel that you would be right applicant for this billing administrator position, complete our initial 3-minute, mobile-friendly application. We look forward to meeting you!

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