Sr Business Systems Analyst (Vertex)

Company: Moody’s Corporation
Apply for the Sr Business Systems Analyst (Vertex)
Location: London
Job Description:

Overview

In this role you lead Moody’s global tax technology, owning Vertex and SAP tax integrations to drive accurate tax determination and compliance. You collaborate with Tax, Finance, IT, and external partners to implement AI-powered tax solutions and uphold governance. You’ll manage global tax programs across regions, support upgrades, and mentor a tax technology team. This is a chance to shape enterprise-scale tax processes and empower data-driven decisions.

Responsibilities

  • Serve as Global Tax lead and single point of accountability for global tax technology, ensuring SAP processes and master data drive tax determination, reporting, and compliance across jurisdictions.
  • Lead the Vertex O Series integration with SAP S/4HANA, including tax procedures, condition tables, tax codes, jurisdiction codes, and reporting structures.
  • Design and support tax integration across end-to-end business cycles: Order-to-Cash, Procure-to-Pay, Record-to-Report, intercompany, credit processing, and General Ledger postings.
  • Support global indirect tax requirements across US, EU, APAC, LATAM, and regional models, including direct and withholding tax integration.
  • Configure, maintain, and validate SAP Integration Component tax mappings; administer exemption and tax certificates within Vertex; manage taxability codes and jurisdiction setup.
  • Support Brazil tax implementation and ongoing compliance; participate in Vertex upgrades (accelerator and O Series) including impact assessment, validation, regression testing, deployment coordination, and post-production support.
  • Own reconciliation and audit readiness by reconciling Vertex tax results to the SAP General Ledger and maintaining audit trails.
  • Uphold SOX and change-governance controls, documentation, testing, IT Automated Controls, and release/change management practices.
  • Train and mentor Tax Super Users and process leads; drive automation and AI-enabled tax capabilities to improve efficiency.

Key requirements

  • More than 10 years of hands-on Vertex O Series 9.0 implementation and support, with configuration expertise in SAP Financial Accounting, Vertex Accelerator, and Vertex O Series 8.0/9.0.
  • Experience integrating SAP with Vertex for AP, AR, SD, and Intercompany Invoicing; setup and troubleshooting of SAP Integration Component tax mappings.
  • Global tax implementations across US, Canada, EMEA, APAC, LATAM, Brazil, and India; greenfield implementations, cutover, hypercare, and production support.
  • Functional understanding of Sales and Use Tax, VAT/GST, tax exemptions, multi-jurisdiction determination, and global tax matrices, including direct and withholding tax concepts.
  • Experience with SAP Document and Reporting Compliance, e-invoicing, and Continuous Transaction Controls; knowledge of country mandates (Peppol, LATAM, India GST).
  • Strong interpersonal, written, and verbal communication skills; experience conducting end-user trainings.
  • Ability to work with internal/external teams; manage projects, teams, and competing priorities under time constraints.
  • Proficiency with AI concepts; hands-on experience using AI tools to streamline workflows and implement AI-powered tax solutions; awareness of AI risk and ethics.
  • strong communication
  • collaboration
  • leadership and mentoring
  • Vertex O Series 8.0/9.0
  • Vertex Accelerator
  • SAP Financial Accounting

Posted: September 18th, 2026