Ready to elevate your career? GESI is expanding! We are officially hunting for our next AP Administrator in Mississauga—someone ready to bring fresh ideas and grow alongside a dynamic team.

About Us

GFL Environmental Services Inc. ("GESI") is a high-growth environmental services company recently carved out of GFL Environmental Inc. Backed by leading private equity firms, GESI delivers liquid waste, industrial cleaning, and soil remediation services across North America through a vertically integrated platform of over 230 sites and a fleet of 1,800 vehicles. Our employees, collectively known as 'Team Green,' enjoy numerous benefits: career advancement opportunities, competitive benefits, job stability within an essential services company, and the chance to make a positive impact every day for our customers and communities, Green for Life!

The Role The Accounts Payable (AP) Administrator is responsible for the accurate reconciliation of vendor statements, the resolution of financial discrepancies, and ensuring that reports provided to vendors are both timely and precise. This role is vital for maintaining vendor relationships and contributing to the overall financial integrity of the organization. The associate serves as a primary point of contact for key suppliers regarding account matters and the investigation of outstanding issues.

Key Responsibilities

- PO & GR Tracking: Issue and manage Purchase Orders, while proactively monitoring unreceived POs and pending Goods Receipts (GRs) to ensure vendor statements and month-end accruals remain accurate.




- Aging & Statement Resolution: Systematically follow up with internal departments and vendors on aging un-reconciled balances, open POs, missing GRs, and unapplied credits
- Reconciliation: Perform monthly reconciliations of key supplier statements against Workday records to resolve open items.
- Discrepancy Resolution: Investigate and resolve payment variances, missing invoices, and credit/debit memos timely.
- Collaboration: Partner with vendors, Procurement, Shared Services, and Payment teams to streamline invoice processing.
- Reporting & Closing: Maintain reconciliation reports and assist with month-, quarter-, and year-end closing activities.
- Process Improvement: Identify and implement enhancements to increase efficiency and accuracy.
- Ad-Hoc Tasks: Complete ad-hoc statement reconciliations and administrative projects as required.

What we're Looking For (Qualifications)

- Experience: 2–3 years of experience in accounts payable, vendor reconciliation, or a similar finance role.
- Work Setting: Comfortable working in a high-volume, multi-entity accounting workplace with tight monthly close cycles and strict control frameworks.
- Education: Post-secondary degree in Finance,



Accounting, or a related field preferred (equivalent experience considered).
- Technical Skills: Intermediate Excel (pivot tables, VLOOKUPs) and familiarity with Google Workspace/MS Office. Workday experience is a strong asset. English proficiency is required; bilingualism (English/French) is an asset.
- Soft Skills: Detail-oriented with strong analytical, problem-solving, and communication skills. Ability to take feedback, manage multiple priorities, and meet tight deadlines in a rapid-paced team environment.

What We Offer

Why join us? We believe in taking care of our team. Here is a snapshot of our total rewards you can expect:

- Health: Comprehensive medical, dental, and vision insurance.

- Wellness: Employee Assistance Program, life insurance, and paid time-off.

- Financial: RRSP matching, profit sharing and competitive wages.

We thank you for your interest. Only those selected for an interview will be contacted.

GFL is committed to equal opportunity for all, without regard to race, religion, color, national origin, citizenship, sex, sexual orientation, gender identity, age, veteran status, disability, genetic information, or any other protected characteristic. If you are interested in applying for employment and need special assistance or an accommodation to apply for a posted position, please contact [email protected]

Job Details

Job ID:

R39508

Job Profile

Accounts Payable Administrator

Job Country

Canada

Apply for this position

📌 AP Administrator (Mississauga)
🏢 GFL Environmental
📍 Mississauga