Vertex Tax System Production Support Service Engineer, City Of London, Greater London, London; England, United Kingdom

Vertex Tax System Production Support Service Engineer

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Job Title: Vertex Tax System Production Support Service Engineer Location: Hybrid in London (2-3 days) Employment Type: 6 month FTC Salary: Competitive Start Date: Immediate Industry: Enterprise MSP

We’re partnering with a leading global organisation looking for an experienced Vertex Tax System Production Support Engineer to provide hands-on functional and technical support for Vertex tax management systems and their integration with ERP platforms (including Oracle Fusion). You’ll play a key role in ensuring accurate indirect tax calculations across multiple jurisdictions, maintaining Vertex configurations, resolving system issues, and supporting compliance and audit processes.

This role suits someone with a solid grounding in indirect taxation (Sales & Use Tax, VAT, GST, Withholding Tax), strong SQL and data troubleshooting skills, and experience managing Vertex–ERP integrations in a production environment.

Vertex Tax Systems Production Support Service Engineer – Key Responsibilities Functional Support Maintain and troubleshoot Vertex tax calculation rules, jurisdictions, and product taxability. Ensure accuracy of tax rates, exemptions, and determinations across global regions. Manage Vertex–ERP integrations (e.g. Oracle Fusion, internal finance systems). Support tax reporting, compliance, and audit preparation. Handle tax accruals and reconciliations to ensure GL accuracy. Document fixes, create knowledge articles, and support quarterly system updates. Technical Operations Perform SQL/data analysis on ERP and Vertex databases for tax reconciliations. Troubleshoot API integrations, data feeds, and calculation discrepancies. Maintain Vertex REST/SOAP API integrations and support FBDI/ADFdi data loads. Monitor performance and optimize tax data loads and batch processes. Compliance & Reporting Support tax compliance reporting (Sales & Use Tax, VAT/GST, Withholding, 1099/1042). Assist with SOX audits, ensuring controls and documentation are maintained. Reconcile Vertex vs. ERP tax subledger vs. GL postings. Ensure adherence to Vertex regulatory updates and tax rate changes. Operational Support Manage support tickets via MyVertex and liaise with Vertex support teams. Coordinate testing for quarterly ERP/Vertex updates. Assist finance, tax, and accounting teams with Vertex-related queries. Document SOPs and troubleshooting steps for recurring tax issues.

Vertex Tax Systems Production Support Service Engineer – Key Skills Required 5+ years of experience supporting Vertex tax systems and ERP integrations. Strong understanding of indirect taxation (Sales & Use Tax, VAT, GST, Withholding). Hands-on knowledge of tax rules, product taxability, and jurisdiction setup. SQL proficiency for data analysis and reconciliation. Experience troubleshooting API integrations and Vertex data feeds. Understanding of tax reporting and SOX audit requirements. Exposure to FBDI/ADFdi for tax-related data management. Strong analytical, communication, and problem-solving skills.

Please apply now if this role is of interest.

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Location:: City Of London, Greater London, London; England, United Kingdom
Job Type:: FullTime

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