Staff Architect, Tax Systems

What you'll do

• Own the end-to-end architecture and design of OneSource tax engine integrations with SAP Ariba and SAP S/4HANA.
• Lead the implementation of new tax content, determination logic, and integrations for global entities and regions.
• Serve as the primary subject matter expert for OneSource configuration and calculation logic.
• Triage and resolve tax integration issues by coordinating with Ariba, SAP, and OneSource technical teams.
• Perform root-cause analysis on tax determination discrepancies and recommend corrective configuration or process changes.
• Design and execute end-to-end test scenarios for new implementations, upgrades, and defect fixes.
• Maintain comprehensive architecture, configuration, and process documentation for the integrated tax systems landscape.
• Monitor product roadmaps and regulatory changes to identify opportunities for improving integration reliability.

What we're looking for

• 9+ years of experience implementing and supporting enterprise tax systems.
• 7-9 years of hands-on implementation or operational experience with tax solutions like OneSource or Pagero.
• 5-7 years of transactional processing and operations assurance experience.
• Demonstrated expertise with OneSource, including hands-on experience implementing OneSource integration to Ariba.
• Demonstrated expertise implementing OneSource integration to SAP S/4HANA.
• Experience with US and international tax systems implementation.
• Functional tax knowledge of posting logic and requirements for US, Europe, and APAC regions.
• Solid working understanding of SAP S/4HANA and SAP Ariba to understand issues and validate fixes across the full transaction flow.
• Bachelor's degree in a related field or equivalent experience.
• Knowledge of e-invoicing solutions such as Pagero, Edicom, or SOVOS (preferred).
• Experience with additional tax engines such as Vertex (preferred).
• Working knowledge of additional SAP modules (MM, SD, AP) that impact taxation (preferred).
• Exposure to SAP ABAP or other technical/integration skills (preferred).
• Experience working in a national or global company (preferred).
• Experience in the media, entertainment, or streaming services industry (preferred).