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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Staff, Architect - Tax Systems - **Company:** Discovery Inc. - **Location:** Atlanta, GA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** SAP ERP, SAP ABAP, SAP (Applications), SAP Sales and Distribution, SAP S/4HANA, Enterprise Integration, SAP Ariba, Data Management - **Published:** August 8, 2026 - **Apply:** https://www.jobmonkeyjobs.com/career/27916315/Staff-Architect-Tax-Systems-Georgia-Atlanta-7384 ## About the Role * 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, 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 * US and international tax systems implementation experience * Functional tax knowledge - understanding of tax posting logic and requirements for US, Europe, and APAC regions * Ability to interpret tax regulatory requirements by region and assess their impact on tax engine configuration, master data, and downstream postings * Solid working understanding of SAP S/4HANA and SAP Ariba sufficient to understand issues end-to-end and validate fixes across the full transaction flow * Proven ability to work across Ariba, SAP, and other parties to triage issues and see them through to completion * Excellent communication skills and a collaborative, business-facing approach given the number of parties involved * Bachelor's degree in a related field or equivalent experience Not Required but preferred experience: * Knowledge of e-invoicing solutions such as Pagero, Edicom, or SOVOS * Experience with additional tax engines such as Vertex * Working knowledge of additional SAP modules (MM, SD, AP) that impact taxation * Exposure to SAP ABAP or other technical/integration skills * Experience working in a national or global company * Experience in the media, entertainment, or streaming services industry ## Description The Staff, Architect - Tax Systems will own the end-to-end architecture, implementation, and support of the OneSource tax engine and its integrations with SAP Ariba and SAP S/4HANA across US and international entities. This is a business-facing, hands-on architect role that serves as the primary point of contact between Tax, Ariba, SAP, and OneSource teams to design solutions and triage issues through to resolution. The role requires a strong working knowledge of the broader S/4HANA and Ariba landscape to understand issues end-to-end and validate fixes across the full transaction flow., * Own the architecture and design of OneSource tax engine integrations with SAP Ariba and SAP S/4HANA * Lead implementation of new OneSource integrations, tax content, and determination logic for new entities, regions, and business requirements across the US and international landscape * Serve as the subject matter expert on OneSource configuration, calculation logic, and integration touchpoints with Ariba and S/4HANA * Partner with SAP Basis/technical and Ariba teams to ensure solution designs support accurate tax determination, calculation, and posting end-to-end Issue Triage & Resolution * Act as the primary business-facing point of contact for triaging tax integration issues spanning Ariba, S/4HANA, and OneSource * Drive cross-team issue resolution, working directly with Ariba, SAP, OneSource, and other vendor/support teams to see issues through to completion * Perform root-cause analysis on tax determination and posting discrepancies and recommend corrective configuration or process changes Testing & Quality Assurance * Design and execute end-to-end test scenarios spanning Ariba, S/4HANA, and OneSource for new implementations, upgrades, and defect fixes * Validate that tax determination and postings are correct across the full procure-to-pay transaction flow, not just within OneSource Cross-Functional Communication & Stakeholder Management * Communicate clearly and proactively with Tax, Finance, IT, and vendor stakeholders across the US, Europe, and APAC regions * Manage expectations across multiple parties and maintain a collaborative, solutions-oriented approach to issue resolution Governance & Continuous Improvement * Stay current on the OneSource product roadmap, regulatory/tax changes, and SAP/Ariba release updates that affect tax integrations * Identify opportunities to improve integration reliability, reduce manual intervention, and strengthen the overall tax systems landscape * Maintain architecture, configuration, and process documentation for the OneSource/Ariba/S/4HANA integration ## Related Videos - [Boost your coding productivity with Github Copilot Agent](https://www.wearedevelopers.com/videos/1542-boost-your-coding-productivity-with-github-copilot-agent) - [Headless by Design: Building Enterprise Systems That Agents Can Actually Use](https://www.wearedevelopers.com/videos/100092-headless-by-design-building-enterprise-systems-that-agents-can-actually-use) - [Replacing Excel with SAP APIs & Python validation](https://www.wearedevelopers.com/videos/1944-replacing-excel-with-sap-apis-python-validation) - [Taming the Beast: Building Autonomous Agents to Solve German Tax Bureaucracy](https://www.wearedevelopers.com/videos/1965-taming-the-beast-building-autonomous-agents-to-solve-german-tax-bureaucracy) - [How One Developer Built the Back Office for 10 Million Companies](https://www.wearedevelopers.com/videos/100082-how-one-developer-built-the-back-office-for-10-million-companies) ## Related Articles - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Best Companies to Work For in Berlin: Top 14 Companies in 2023 ](https://www.wearedevelopers.com/magazine/188-best-companies-to-work-for-in-berlin-top-14-companies-in-2023) - [Data Analyst Salary in Switzerland](https://www.wearedevelopers.com/magazine/276-data-analyst-salary-in-switzerland) - [Frontend Developer Salary in South Africa](https://www.wearedevelopers.com/magazine/234-frontend-developer-salary-in-south-africa) - [Data Analyst Salary Austria](https://www.wearedevelopers.com/magazine/275-data-analyst-salary-austria)