Billing Clerk - Finance

Randstad is looking for a multi-tasking individual with strong invoicing administration experience for an exciting role in the Mississauga region. Are you good at building good working relations with other departments? This role is essentially the technical backbone of the Accounts Receivable process, acting as the primary link between finance operations and digital payment platforms. Crown is looking for a specialist who can own the entire lifecycle of customer invoicing portals—from the initial technical setup and user access management to the high-stakes troubleshooting required when an invoice fails to transmit.

You won't just be "inputting data"; you’ll be the process expert who ensures the "Master Sheet" of portal configurations remains the ultimate source of truth. Because these platforms are constantly evolving, there is a heavy emphasis on documentation and continuous improvement. You’ll be responsible for turning complex billing workflows into clear Standard Operating Procedures (SOPs), ensuring that as the company scales, the knowledge of how to get paid stays organized and accessible. It’s a fast-paced role that requires a mix of financial literacy, technical troubleshooting, and the administrative discipline to meet tight month-end deadlines.

Easily accessible by public transit

Customer Invoicing Portals

Set up new customer invoicing portal requests from initial intake to completion

Maintain and update existing portal configurations based on customer communications

Track, maintain, and update login credentials and access details for all portal customers

Keep the customer portal master sheet accurate and up to date

Invoice Processing & Administration

Manually re‑upload corrected invoices to the Tungsten portal for applicable customers

Documentation & Process Improvement

Create Standard Operating Procedures (SOPs) for new or updated billing processes

Previous experience in finance, invoicing, accounts receivable, or billing support roles

As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.

Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to View email address on randstad.com.