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.