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Kathy RendonKR
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Kathy Rendon

@kathyrendon

Portal Billing Specialist at Diversified processing invoices across 80+ customer portals and resolving billing exceptions.

United States
Message

At Diversified, I process high-volume electronic invoices through more than 80 customer portals, including SAP Ariba, Coupa, Taulia, Oracle Procurement Cloud, Textura, Ivalua, GEP SMART, and JAGGAER.

I review invoice details, purchase orders, tax applications, and supporting documents against client requirements. When invoices are rejected or exceptions arise, I investigate the causes through customer portals and Microsoft D365 and work with Finance, Accounts Receivable, Operations, and Project Managers on resolutions.

Previously, at Global Industrial a Systemax Company, I handled electronic invoicing across more than 150 customer portals and prepared weekly Accounts Receivable aging reports. I also created portal procedures and reference guides and trained a five-person Portal Team.

Earlier, at Metro Distributors Inc. and Gwinnett County Water, I worked on invoice verification, account reconciliation, and billing issue resolution. At Gwinnett County Water, I developed an SOP for Commercial Cooling Tower Billing.

Experience

Work history, roles, and key accomplishments

Diversified logoDI
Current

Portal Billing Specialist

Jun 2023 - Present (3 years 3 months)

●   Process high-volume client invoices through 80+ customer portals, including SAP Ariba, Coupa, Taulia, Oracle ·         Manage high-volume electronic billing across 80+ customer portals, including SAP Ariba, Coupa, Taulia, Oracle Procurement Cloud, Textura, Ivalua, GEP SMART, and JAGGAER, consistently meeting client-specific requirements and typical 24–48-hour submission timelines.
·         Co

Global Industrial a Systemax Company logoGC

Online Billing Specialist

Mar 2019 - May 2023 (4 years 2 months)

·         Managed electronic invoicing across 150+ customer portals, including SAP Ariba, Coupa, and proprietary platforms, ensuring invoices met customer-specific submission and documentation requirements.
·         Monitored invoice statuses and investigated rejected invoices, billing discrepancies, and submission issues, coordinating corrections and follow-up to keep invoices moving through cus

Metro Distributors Inc logoMI

Business Support Associate

Apr 2018 - Mar 2019 (11 months)

·         Processed and reviewed vendor invoices and financial data, verifying billing accuracy, supporting documentation, and payment information to catch issues before they reached payment processing.
·         Investigated invoice and account discrepancies, coordinating with internal teams to deliver corrections and reconciliations that kept payments accurate and timely in a deadline-driven env

Gwinnett County Water logoGW

Service Associate II

Dec 2006 - Feb 2014 (7 years 2 months)

·         Managed high-volume customer account updates and financial data, verifying accuracy to maintain complete, reliable account records while balancing multiple priorities, deadlines, and service requests.
·         Researched and resolved account discrepancies and billing issues in coordination with internal departments and developed an SOP for Commercial Cooling Tower Billing that standardi

Education

Degrees, certifications, and relevant coursework

AU

American InterContinental University

Bachelor of Arts (B.A.), Graphic Design

BC

Bauder College

Associate of Arts (A.A.), Interior Design

Tech stack

Software and tools used professionally

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