Sr. SAP AP / VIM Engineer

About the Role Joining Moderna's international business services hub in Warsaw, you’ll serve as a global technical authority for SAP S/4HANA Accounts Payable, OpenText VIM, and Procure-to-Pay. You’ll architect and optimize end-to-end invoice-to-pay capabilities to drive automation, compliance, and financial integrity at scale, shaping Moderna’s straight-through-processing strategy and embedding advanced digital, AI, and automation across finance operations. What You'll Do

• Serve as the SAP FI-AP, OpenText VIM, Bank Accounting, and Procure-to-Pay subject matter expert, with a strong understanding of downstream RTR impacts.
• Own configuration and continuous optimization of AP processes including vendor invoice intake, validation, parked/posting logic, tolerances, payment terms, duplicate invoice prevention, withholding tax, and vendor open item management.
• Lead the design, implementation, and support of OpenText VIM (OCR / intelligent capture, indexing, validation rules, approval workflows, exception handling, dashboards, and operational reporting).
• Drive touchless invoice processing to maximize straight-through processing rates across PO and non-PO invoice flows.
• Partner with Procurement and business stakeholders to optimize 2-way and 3-way matching, improve invoice exception handling, resolve GR/IR discrepancies, and ensure supplier invoicing compliance.
• Lead integration across procurement platforms and channels (Ariba, supplier portals, EDI, OCR, and intelligent document processing technologies).
• Own and deliver global government e-invoicing initiatives, including integration with partners such as EDICOM, enabling country-specific mandates and ongoing compliance monitoring.
• Oversee payment-related SAP functionality: payment program configuration, payment methods, payment blocks, approval workflows, bank file generation, and secure transmission to banking platforms.
• Lead global banking integrations using ISO 20022 standards (pain.001, camt.053, camt.054) while maintaining bank connectivity, house bank structures, and reconciliation frameworks.
• Support end-to-end cloud-first finance operations with a focus on scalability, security, and governance.