Senior Staff Accountant, Accounts Payable

The Staff Accountant  of Accounts Payable owns day-to-day processing of non-PO invoices, including reaching out to vendors to confirm service periods and invoice details, coordinating with Finance Business Partners to confirm cost center and budget coding, and working with Accounting leadership to resolve coding questions in gray-area situations. This role also supports the P2P inbox, vendor onboarding and validation, vendor relationship ownership, and backs up expense report review. The ideal candidate is detail-oriented, communicates clearly via email, thinks independently, and is comfortable using AI tools (such as Claude) to improve and automate AP processes. We are flexible with respect to geographic location, and the ideal candidate will be comfortable working remotely/work from home within the US or be based from Bethesda, MD office.

Primary Duties:

Review bills coded by Staff Accountants for coding accuracy above an established materiality threshold, including proper treatment of prepaid vs. current expenses, amortization schedules, and service periods. Serve as the final layer of review for PO-backed bills, matching bills to POs and catching missing fields the PO did not carry over (e.g., prepaid coding, amortization schedules), so a secondary AP reviewer is not required. Review and approve new or updated vendor payee profiles, checking the vendor master file for duplicates and carefully distinguishing vendors from partner practices before approval. Prepare AP payment runs, support cash forecasting with the Treasury team, and support or resolve vendor statement reconciliations escalated by Staff Accountants. Help manage the P2P inbox, back up the Practice Payment function of AP, mentor Staff Accountants by reviewing errors and building processes to reduce them going forward, and support testing of scenarios during the Tipalti-to-Zip migration.