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Sumayyah Messina

@sumayyahmessina

Message

I optimize billing operations, AR/AP workflows, and financial ledger accuracy.

United States

Message

What I'm looking for

I'm looking to apply my billing, AR/AP, ledger reconciliation, audit, and reporting experience in a role focused on accurate financial operations, compliance, and streamlined billing workflows.

At Casarino, Christman, Shalk, Ransom & Doss, P.A., I direct full-cycle AR/AP operations, produce monthly billing statements and variance reports, and maintain general ledger integrity under GAAP and compliance requirements.

I've spent more than a decade supporting billing, accounting, administrative, and account-setup operations. I use QuickBooks ERP and advanced Excel to audit invoices, resolve ledger discrepancies, support payroll inputs, manage financial audits, and improve the accuracy of high-volume billing workflows.

Experience

Work history, roles, and key accomplishments

Current

Billing Administrator

Current

Casarino, Christman, Shalk, Ransom & Doss, P.A.

Jul 2023 - Present (3 years 2 months)

Directed full-cycle AR/AP operations, processing high-volume billing streams with full data entry and ledger accuracy. Compiled monthly billing statements, variance analyses, and financial reports for executive decision-making.

Accounts Receivable Accounts Payable Billing Variance Analysis Financial Reporting Data Entry Payroll