Vertex Tax System Production Support Service Engineer

6 Month FTC Salary: Dependent on experience Hybrid: 2 days a week in the office We're hiring a technically skilled and tax-aware professional to support a global tax automation platform integrated with a major ERP environment. This role involves managing system accuracy, supporting compliance processes, and ensuring seamless operations between financial systems and tax engines. Key Responsibilities Functional & Compliance Support Provide subject matter expertise across global indirect tax types such as VAT, GST, Sales & Use Tax, and Withholding Tax. Maintain and resolve issues within tax automation tools including rules, jurisdiction mappings, and product taxability. Ensure correct configuration of tax rates, exemptions, and categories. Support integration points between tax engine and ERP platforms (e.g., Oracle Fusion or similar). Oversee compliance-related reporting activities including audit support, accruals, reconciliations, and filing data preparation. Troubleshoot transactional discrepancies and assist users in resolving taxation-related queries. Log, analyze, and prioritize support incidents while maintaining documentation for future reference. Assist in system patching, version upgrades, and testing of tax automation workflows. Monitor system performance and collaborate on optimization initiatives. Technical & Data Operations Use SQL and reporting tools to perform transaction analysis, validate tax results, and troubleshoot reconciliation issues. Resolve system integration errors including tax calculation failures, incorrect invoice treatments, or missing rate mappings. Maintain and support API-based connections (REST/SOAP) for seamless data exchange between ERP and tax systems. Improve system throughput by identifying slow processes, batch job delays, and misconfigured data loads. Work with ERP tools (e.g., FBDI, ADFdi) to upload and manage tax data such as exemptions, rates, and transaction records. Your Background Experience in supporting global tax automation platforms, ideally integrated with cloud ERP systems. Understanding of indirect tax principles across various jurisdictions. Proficiency in SQL for data investigation and reporting. Hands-on experience in system-to-system integration and API troubleshooting. Ability to support both functional users and technical teams across finance and IT. Strong analytical thinking with attention to accuracy in tax calculation workflows.