FLEX Senior Product Manager, Corporate Systems Procurement

This is a temporary position
The assignment duration is through 10/09/2027

Marriott is seeking an experienced FLEX Senior Product Manager, Corporate Systems Procurement to own the strategy, roadmap, and delivery of indirect tax integrations across our procurement platforms. This role will drive the integration of Procure-to-Pay (P2P) and Source-to-Contract (S2C) solutions with the Vertex tax engine, enabling automated, accurate, and compliant tax determination throughout the procurement lifecycle. Partnering closely with Engineering, Architecture, Tax, Procurement, Finance, and Accounts Payable teams, this role will define integration strategies, data models, and scalable solutions that deliver business value while meeting regulatory requirements.

Required

• Bachelor’s degree in Computer Science, Management Information Systems (MIS), Business Administration, Accounting, Finance or equivalent practical experience.
• 7+ years of product management experience in enterprise technology, with at least 3 years leading ERP, procurement, or finance system integrations including: 
  • Demonstrated hands-on product management experience involving Vertex O Series indirect tax engine implementations (sales/use tax, VAT/GST determination, and tax content updates). 
  • Proven experience managing integration deliverables between procurement platforms (Coupa, Birchstreet) and tax engine. 
• Integration Lifecycle Governance: Knowledge of integration concepts (e.g., REST/SOAP APIs, middleware, SFTP batch processing), data mapping and error-handling workflows. 
• Quality Assurance & Cutover: Extensive experience in managing Integrated System Testing (SIT), User Acceptance Testing (UAT), end-to-end reconciliation, cutover runbooks, and hypercare support models. 
• Stakeholder & Vendor Coordination: Strong track record holding third-party system integrators (SIs), software vendors (Coupa, Birchstreet), and cross-functional technical teams accountable to strict delivery milestones and SLAs.
• Proven record delivering complex, cross-functional integration programs from requirements through go-live in an agile environment (Jira, Azure DevOps, or similar). 

Preferred

• PMP, SAFe, Agile and ITIL v4 Certifications
• Direct experience implementing Vertex O Series or Vertex Cloud with Coupa
• Experience with global tax requirements, including VAT, GST, and withholding tax
• Background in process optimization, lean operations and procurement transformations.

• Own the vision and multi-release roadmap for tax integration across Coupa P2P, Coupa S2C, and Birchstreet.
• Prioritize the backlog against compliance requirements, technical dependencies, financial impact, and platform constraints.

• Define integration architecture and data flows between Coupa, Birchstreet, Vertex (O Series or Vertex Cloud), middleware, and the ERP.
• Specify API requirements, field mappings, authentication, error handling, retry logic, and idempotency for real-time and batch tax calls.
• Own technical requirements for master data: ship-to/ship-from, product and commodity tax codes, supplier tax attributes, exemption certificates, and chart of accounts mappings.
• Define tax calculation behavior at each stage (requisition, PO, receipt, invoice, credit memo, expense), including PO-to-invoice tax variances, tolerance handling, and supplier-charged vs. self-assessed use tax.
• Define non-functional requirements: performance, scalability, availability, latency, monitoring, and disaster recovery.
• Partner with architects on security, data privacy, and environment strategy (sandbox, UAT, production).

• Write clear epics, user stories, technical specifications, and acceptance criteria. Lead sprint planning, backlog grooming, and release readiness.
• Collaborate daily with developers, QA, DevOps, Coupa and Birchstreet administrators, Vertex consultants, and implementation partners.
• Drive test strategy, including integration, regression, performance, and end-to-end testing of tax scenarios across jurisdictions, with automation where possible.
• Lead UAT with Tax, AP, and Procurement; manage cutover, data migration, and hypercare for go-lives across entities and countries.
• Troubleshoot integration defects and production incidents, performing root-cause analysis with logs, payloads, and tax determination results.

• Ensure traceability of tax determinations, overrides, and audit logs to support SOX, internal audit, and tax audit requirements.
• Define observability and KPIs: tax calculation accuracy, API success rates, exception volumes, override rates, and processing latency.
• Track Vertex releases, Coupa and Birchstreet release cycles, and regulatory changes (e-invoicing mandates, new jurisdictional rules), and plan upgrades and regression impacts.

• Translate between technical and non-technical audiences, including Tax, Procurement, AP, Finance, and executive sponsors.
• Communicate status, risks, and decisions to operating committees.

• Develop stakeholder engagement, communication, and training plans
• Partner with change management teams to drive user adoption across global business units

• Communicate program progress, risks, and decisions to senior leadership

   

• Strong ownership and accountability in ambiguous, multi-stakeholder environments
• Ability to translate between business and technical audiences
• Structured problem solving and sound risk judgment
• Clear, concise written and verbal communication
• Influence without direct authority

At Marriott International, we are dedicated to being an equal opportunity employer, welcoming all and providing access to opportunity. We actively foster an environment where the unique backgrounds of our associates are valued and celebrated. Our greatest strength lies in the rich blend of culture, talent, and experiences of our associates.  We are committed to non-discrimination on any protected basis, including disability, veteran status, or other basis protected by applicable law.