Manage and mentor a team of 3 Accounts Payable staff, including workload distribution, training, performance management, and professional development Oversee the full-cycle accounts payable process across multiple entities, including invoice intake, coding, matching, approval routing, and payment processing Ensure vendor invoices are coded accurately to the correct job, cost code, and GL account, partnering with Project Accountants and Project Managers as needed Review and approve weekly payment runs (checks, ACH, wire) and ensure adherence to payment terms and cash flow priorities Help oversee employee credit card transactions, expense reimbursements, and per diem processing through SAP Concur, ensuring submissions comply with company policy and are reviewed and reimbursed in a timely manner Maintain strong vendor relationships, resolving escalated invoice discrepancies, payment inquiries, and disputes in a timely and professional manner Oversee subcontractor compliance documentation (lien waivers, W-9s, COIs) in coordination with Project Management Manage the 1099 process, ensuring accurate vendor classification and timely year-end filing Reconcile AP subledger to the general ledger monthly and research/resolve any discrepancies Develop, document, and enforce AP policies, procedures, and internal controls to strengthen accuracy and reduce risk Identify and implement process improvements and automation opportunities within the AP workflow, including AP and expense module usage within Concur and/or the company's ERP system Partner with the Financial Controller on cash flow forecasting related to upcoming payables Support month-end close by ensuring accruals for unrecorded liabilities are accurate and complete Serve as a key point of contact for AP-related items during audits and provide supporting schedules as needed. Bachelor's degree in Accounting, Finance, or related field preferred; equivalent experience considered 5+ years of accounts payable experience, including at least 2 years in a supervisory or management role Experience managing full-cycle AP in a multi-entity or multi-project environment Strong understanding of AP controls, vendor management, and month-end close processes Proficiency with AP automation/expense platforms (e.g., SAP Concur) and ERP systems Advanced Excel skills (pivot tables, VLOOKUP/XLOOKUP) Strong leadership, organizational, and communication skills Ability to work in-person, full-time, at the Rockville, MD office.