SAP Functional Architect - Requisition to Pay (MM)

The SAP Functional Architect - Requisition to Pay (RTP) is responsible for the end-to-end design of sourcing, procurement, inventory, and vendor management processes across SAP. As the accountable owner of the RTP functional architecture, the Architect ensures that procurement flows from requisition to vendor payment are standardized, compliant, efficient, and fully integrated with warehouse, finance, and supply chain systems. Partnering closely with the Product Owner, the RTP Architect evaluates business needs, ensures fit-to-standard adoption, and designs scalable solutions that reduce cycle times, strengthen internal controls, and enable reliable supplier collaboration. The role also governs data quality, vendor master standards, invoice reconciliation logic, and integration patterns with EDI partners, ensuring that enhancements and regulatory changes are delivered safely and consistently across all plants and functions., Architecture & Standards:

• Define RTP target state (MM Purchasing, Inventory Mgmt. Invoice Verification), catalog/contract patterns, and approval workflows.
• Enforce clean-core (standard first; BTP extensions when needed).
• Approve functional/integration designs and WRICEF scope with reusability and lifecycle controls. Ensure traceability (requirements design test
• deploy) and documentation that meets SOX/SoD requirements.

Vendor & Compliance:

• Govern vendor master design, tax and 3-way match controls (VI-PO-GR), and release strategies (where applicable) align with SoD and audit requirements.

Integration:

• Oversee interfaces to suppliers, EDI networks, WMS/TMS, and finance, error handling, and monitoring.

Data & MDM:

• Set data quality rules for vendors/materials; validate mapping, cleansing, and cutover.

Testing & Readiness: Define RTP E2E scenarios (PR PO GR IV

• Payment), regression packs, and performance/NFRs.
• Participate in PI/Sprint events; align with the Product Owner on backlog priorities and architectural enablers.

Collaboration with Product Owner

• Guide feasibility and fit-to-standard; articulate debt vs. value trade-offs; ensure ServiceNow demand contains clear design artifacts.

Key Deliverables

Target Architecture & Blueprint Deliverables

• End-to-end process architecture for the functional domain
• SAP Target State Design covering standard vs. extensions
• Functional Blueprint Document (process flows, variants, decision logs)
• Cross-module architecture with OTC/PTC/PTP integration points
• Integration contracts (API/IDoc mapping, sequencing, error handling)
• Non-Functional Requirements (performance, security, auditability)

WRICEF & Build Design Deliverables

• WRICEF inventory + complexity scoring + dependency mapping
• Approved WRICEF Functional Specifications
• Prototype configurations, demo scripts, and design validation materials

Master Data Deliverables (in collaboration with MDM Team)

• Master data standards (materials, vendors, etc.) Support to conversion mapping documents (legacy
• S/4HANA)
• Cutover data load requirements + mock load execution criteria

Testing Deliverables (in support of QA Team)

• End-to-End (E2E) business scenario catalog
• SIT test scripts with cross-domain flows
• UAT business scenarios, acceptance criteria, and test evidence
• Regression test packs + automation candidates for future releases

Deployment Deliverables

• Cutover plan inputs (sequence, dependencies, freeze windows)
• Functional readiness checklists
• Production validation scripts
• Hypercare playbooks + issue triage protocols
• Business stabilization metrics (defect rate, bounce-backs, rework)

Do you have experience in Vendor relationship management?, * 10-15 years SAP MM/RTP experience in SAP (Purchasing, Inventory Management, Invoice Verification, Vendor Management).

• Strong experience in 3-way match, invoice reconciliation, tax determination, and vendor payment cycles.
• Expertise designing procurement flows: direct materials, indirect procurement, services procurement, subcontracting, consignment.
• Deep knowledge of vendor master, purchasing org structure, catalogs, source lists, PIRs, outline agreements, and release strategies.
• Experience with EDI procurement, ASN processes, supplier portals, and supply chain collaboration tools.
• Skilled at designing material master governance, valuation types, units of measure, MRP-relevant fields, and classification.
• Experience with cross-module integrations (PTP, OTC, PTC).
• Hands-on experience guiding Functional Leads and AMS in configuration, testing, and defect RCA.
• Knowledge of controls & compliance: tax, SoD, audit standards, invoice tolerances, GR/IR handling.
• Experience supporting UAT, regression, cutover, and hypercare in multi-plant deployments.
• Ability to govern clean-core, BTP extension strategy, and integration architecture.
• Executive-ready communication, decision facilitation, and risk articulation.
• Ability to mentor Functional Leads and elevate the CoE’s maturity.

Preferred

• SAP S/4HANA MM certification.
• Experience in supplier risk, procurement analytics, or guided buying tools.
• Background in high-volume manufacturing procurement.

Pulled from the full job description

• Health insurance
• Dental insurance, * Highly competitive base pay
• Comprehensive medical, dental and disability benefits programs
• Group retirement savings program
• Health and wellness programs
• An inclusive culture that values opportunity for growth, development, and internal promotion

About CRH

CRH has a long and proud heritage. We are a collection of hundreds of family businesses, regional companies and large enterprises that together form the CRH family. CRH operates in a decentralized, diversified structure that allows you to work in a small company environment while having the career opportunities of a large international organization.

Oldcastle, a CRH company, is reinventing what’s possible in building solutions. We are the leading provider of innovative outdoor living products and utility infrastructure solutions for the water, energy, and communications markets throughout North America. We’re a trusted and strategic partner to engineers, contractors, distributors, specifiers, retailers, and homeowners alike as the manufacturer of precast concrete, polymer concrete, and plastic infrastructure products. Our portfolio of brands includes Oldcastle APG, Oldcastle Infrastructure, Belgard® hardscape, Echelon® Masonry, RDI® railing, Catalyst Fence Solutions, Sakrete® packaged concrete, Amerimix® mortar, Pebble Technology International® pool finishes, and Techniseal® sands and sealant technologies., Oldcastle Infrastructure, a CRH Company, is an Affirmative Action and Equal Opportunity Employer.