Media Cost Administrator, Netsuite

Attention Arc•Irvington, NY

9d•Hybrid

About The Position

As a Media Cost Administrator, you'll manage the financial operations that support media investments across the agency. Your work ensures media billing is accurate, transparent, and aligned with the thoughtful planning that makes media matter.

Requirements

1+ year of accounting, billing, media finance, or related experience, preferably within a media agency, advertising, or marketing environment.
Understanding of digital media billing across Search, Social, Programmatic, Paid Media, and related advertising channels.
Experience working in NetSuite, including billing, reconciliation, and financial record management.
Advanced Microsoft Excel skills with experience organizing, reconciling, and analyzing financial data.
Experience managing high volumes of vendor invoices and financial documentation.
Thinks critically and solves problems with sound financial judgment.
Demonstrates exceptional attention to detail and accuracy in every aspect of their work.
Prioritizes effectively while managing multiple deadlines in a fast-paced environment.
Communicates clearly and professionally with teammates, stakeholders, and vendor partners.
Builds collaborative relationships across departments through trust, responsiveness, and accountability.
Learns quickly, embraces feedback, and continuously seeks opportunities to improve processes and efficiency.

Nice To Haves

Familiarity with EDI invoicing systems is preferred.
Experience with QuickBooks is a plus.

Responsibilities

Administer and reconcile media costs and vendor invoices across Search, Social, Programmatic, Paid Search, and other paid media channels.
Process monthly media billing accurately and efficiently using NetSuite and internal planning and purchasing systems.
Review vendor invoices to ensure alignment with approved media plans, purchase orders, and campaign execution.
Investigate and resolve billing discrepancies by partnering with internal teams and external vendors.
Maintain accurate billing records and ensure all financial documentation is complete and audit-ready.
Track outstanding invoices and proactively follow up with vendors to ensure timely receipt and payment.
Maintain Excel-based billing trackers, reconciliation reports, and supporting financial records.
Support month-end close activities, invoice processing, document management, and record retention.
Assist with EDI invoicing processes and ensure billing data is complete and accurate.
Partner closely with Media, Client Services, Operations, Finance, and vendor partners to ensure accurate billing and reconciliation.
Support agency billing initiatives and cross-functional process improvements.
Identify opportunities to improve workflows, strengthen financial controls, and increase operational efficiency.
Contribute ideas that simplify financial processes while maintaining accuracy and accountability.