marzena brozek

Accounts Receivable and Collections Specialist, Billing and Invoicing Specialist with over 10 years of experience managing aging portfolios, payment follow-up, dispute resolution, cash application, billing support, account reconciliation. Recognized for reducing overdue balances, resolving account issues professionally, and using ERP, CRM, Excel, Salesforce, Power BI, SAP, Billing Platform (BP), NetSuite, and payment platforms (Moneris, Stripe, Payroc) to support accurate, timely collections.

• Accounts receivable
• Aging analysis
• Billing and invoicing
• Billing dispute resolution
• Cash application
• Collections
• Credit holds
• Customer account reconciliation
• ERP systems
• Excel reporting
• Invoice resolution
• Past-due follow-up
• Power BI

1. Accounts Receivable Specialist

   Pointclickcare

   févr. 2023 to août 2026

   Mississauga, On

   • Managed daily AR activity including payment posting, cash application, account reconciliation, invoice review, and compliance with financial policies. • Investigated billing discrepancies, resolved client account issues, and coordinated case resolution with Account Services through Salesforce. • Followed up with customers by email and phone to collect past-due balances, support ACH enrollment, process credit card payments (Payroc and Stripe), and arranged payment plans for customers with financial difficulties, monitoring customers’ compliance with the signed terms. • Used Power BI aging reports to monitor 30-, 60-, and 90-day balances, identify risk, and support timely payment recovery. • Prepared Excel files for bulk open-payment uploads and supported accurate payment matching using AI-assisted data review.

2. Accounts Receivable/Collection Specialist

   Medline Canada

   oct. 2019 to oct. 2022

   Mississauga, On

   • Managed assigned AR portfolio by monitoring aging balances, performing collections on overdue invoices, and following up with customers to secure payment. • Reviewed credit limits, account holds, payment patterns, and receivables risk supporting timely release of orders and escalation of high-risk accounts. • Resolved customer disputes, short payments, invoice issues, credit notes, and account discrepancies through research and coordination with internal departments. • Submitted, tracked, and followed up on customer invoices through ARIBA, Coupa, OpenInvoice, and JAGGAER vendor portals. • Processed customer payments received by cheque, EFT, credit card, and pre-authorized/on-call credit card transactions through Moneris. • Prepared AR reports, reviewed aging activity, and partnered with Finance and Collections leadership to improve collection processes and reduce overdue balances.

3. Accounts Payable Invoice Administrator

   TJX Canada

   nov. 2017 to juin 2019

   Mississauga, On

   • Processed high volumes of invoices with strong accuracy, including sorting, coding, matching, and accounting-system entry. • Verified payments, vendor details, debit memos, credit memos, and manager-approved invoice adjustments. • Used Excel and purchase order research to resolve invoice and cost discrepancies with buyers, vendors, and banks. • Supported full-cycle AP processing, month-end reporting, year-end reconciliations, and state-of-account reporting.

4. Accounts Receivable Assistant Co-op

   Revlon Canada

   févr. 2017 to avr. 2017

   Mississauga, On

   • Created SAP dispute cases and entered supporting cheques, invoices, deductions, and backup documentation. • Analyzed claims, shortages, returns, MDF numbers, reason codes, and purchase orders using Excel PivotTables. • Assisted with bank statement review, EDI, EFT, lockbox activity, and weekly aging reports.

5. Legal Assistant / Administrative Assistant/ Consultant

   ACA Immigration Inc.

   sept. 2010 to déc. 2016

   Mississauga, On

   • Managed AP, AR, expense reporting, administrative budgets, client follow-up, and day-to-day office operations. • Prepared immigration forms, correspondence, legal documents, and confidential client files while maintaining professional client service. • Processed visitor and work permit visas independently. • Assisted with processing sponsorship applications, monitoring each case and updating records for accuracy.

1. Sheridan College

   Office Administration Diploma, Office Administration

• Billing Platform Operator Certificate

• Basic AI Proficiency Certificate

• Small Business Accounting Certificate

  B.J. Fleming Adult Education

• Lean Six Sigma Certificate

• Cybersecurity Certificates