SAP Senior Functional Lead - Materials Management

GAF•Parsippany, NJ

About The Position

At GAF, we cover more than buildings. We cover each other. No matter what role, tenure, or track, under this roof you are empowered to be there for your teammates, your customers, and especially your community. Under this roof, we don’t back down from hard work– we support one another in pursuit of something bigger. We define the future while leading the present. And under this roof, we own our opportunities. Becoming the market leader only happens when everyone feels they have the opportunity, and the support, to thrive. We are GAF. And under this roof, we protect what matters most. Job Summary The Senior SAP MM Consultant will lead procurement, sourcing, and inventory management solution design across S/4HANA and Ariba platforms within a manufacturing environment. This role requires deep functional expertise, strong understanding of end-to-end supply chain processes, and the ability to architect integrated P2P solutions that leverage both S/4HANA and Ariba capabilities.

Requirements

Associate’s Degree required or Associate’s Degree with 20+ years of experience
12+ years of hands-on SAP MM functional experience required
2–3 full-cycle S/4HANA implementations in manufacturing required
Hands-on SAP Ariba implementation experience (at least one full cycle) required
Strong understanding of P2P processes, sourcing, procurement, and supply chain operations required
Expertise in: S/4HANA Fiori apps, Material valuation & account determination, Output management, Batch management, IDocs/EDI, Ariba-S/4HANA integration
Experience working in multi-plant manufacturing environments.
Strong communication, stakeholder management, and problem-solving skills.

Nice To Haves

Experience with Ariba Guided Buying, Ariba Network, or Ariba Catalogs preferred
Exposure to WM, QM, PP, or Ariba SCC (Supply Chain Collaboration) preferred
SAP MM or Ariba certification preferred
Experience with global template design and rollouts preferred

Responsibilities

Lead full lifecycle S/4HANA MM and SAP Ariba implementations, including requirement gathering, solution design, configuration, testing, deployment, and hypercare.
Conduct workshops with procurement, supply chain, and manufacturing stakeholders to capture business requirements and translate them into functional specifications.
Configure and optimize core SAP MM components: • Procurement (PR/PO) • Source determination & vendor evaluation • Inventory management • Material master & BOM integration • Invoice verification • Subcontracting & consignment • Batch management
Design and integrate SAP Ariba modules such as: • Ariba Sourcing • Ariba Buying & Invoicing • Ariba Supplier Lifecycle & Performance • Ariba Contracts
Ensure seamless integration between Ariba and S/4HANA for end-to-end P2P processes.
Support manufacturing-specific scenarios: • Make-to-Order (MTO) and Make-to-Stock (MTS) • Subcontracting and external processing • Material staging and shop-floor integration
Collaborate with cross-functional teams (SD, PP, FI/CO, QM, WM) to ensure integrated business flows.
Prepare functional specs for RICEFW objects and work closely with ABAP and integration teams.
Lead testing cycles: unit testing, SIT, UAT, and defect resolution.
Support data migration, cutover planning, and post-go-live stabilization.
Ensure alignment with SAP Activate methodology and industry best practices.

Benefits

We offer a wide range of health insurance options that include medical, dental, and vision for you and your family.
Our Family-Building benefits support the many different journeys to fertility and parenthood.
Our robust 401K plan includes an employer match contribution with your pre-tax and/or Roth contributions.
Other exciting programs and perks are available to help employees achieve work-life balance, including (but not limited to) a wellness program, free financial coaching, a referral program, and product rebates when purchased for an employee’s primary residence.
Professional growth and development are very important to us! We offer internal training programs and courses, as well as a generous tuition reimbursement program.
We're committed to fostering a culture that reflects our values to connect, empower, evolve, and inspire. We offer many opportunities for employees to connect with one another, including through our Employee Resource Groups who focus on education and allyship for all of our employees.

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