• Communicate daily with project managers across multiple office locations • Prepare, review, and process high-volume, complex invoices independently • Ensure compliance with client invoicing requirements and company policies • Submit invoices through various client invoicing portals • Manage multiple billing assignments with shifting priorities and deadlines • Analyze and verify cost data for billing accuracy • Create and maintain billing schedules based on contract terms • Perform account reconciliations and resolve discrepancies • Support internal and external audits with documentation and explanations • Organize and maintain billing files and related communications