The Sr. Associate Supply Chain, RMD Buyer Lead is responsible for executing procurement and supply chain transactions that ensure uninterrupted material availability and accurate system execution. Leads a group of buyers executing orders for the Amgen Network, operating within a signal-based execution model, this role manages and has oversight of  purchase order placement, supplier order management, invoice processing, SAP master data maintenance, and workflow execution.

The position serves as a key link between suppliers, Network Planning, Accounts Payable, and internal stakeholders to ensure timely material flow, accurate system data, and efficient procurement operations.

Key Responsibilities

Signal-Based Supply Chain Execution

• Execute procurement activities based on planning signals and system-generated requirements.

• Monitor and respond to supply exceptions to ensure continuity of material supply.

• Collaborate with Network Planners to understand demand changes and execute required procurement actions.

• Escalate supply risks, delays, and exceptions to appropriate stakeholders.

Purchase Order Management

• Create, release, and manage purchase orders in SAP.

• Communicate purchase orders and schedule requirements to suppliers.

• Maintain purchase order accuracy including quantities, delivery dates, pricing, and confirmations.

• Monitor open orders and proactively resolve discrepancies impacting supply.

Purchase Order Maintenance & Supplier Coordination

• Process purchase order updates, cancellations, and rescheduling requests.

• Manage supplier confirmations and delivery commitments.

• Coordinate with suppliers to resolve order execution issues and delivery exceptions.

• Support supplier performance through timely communication and issue resolution.

Invoice Processing & AIN Management

• Review, process, and resolve invoice discrepancies through Ariba Network (AIN) and SAP.

• Partner with Accounts Payable, suppliers, and procurement teams to resolve blocked invoices and payment issues.

• Ensure invoice processing compliance with company policies and procedures.

• Monitor invoice workflow status and drive timely resolution of exceptions.

SAP Data & System Accuracy

• Maintain accurate procurement and material master data within SAP.

• Update and manage Purchasing Info Records (PIRs), lead times, sourcing information, and procurement parameters.

• Ensure transactional accuracy across procurement systems.

• Support system audits and data quality initiatives.

Workflow & Master Data Management

• Support creation and maintenance of supplier, material, and purchasing master data.

• Monitor workflow queues and resolve pending approvals.

• Ensure compliance with established business processes and data governance standards.

Stakeholder Collaboration

• Partner closely with Network Planners to execute procurement requirements and manage supply exceptions.

• Collaborate with Manufacturing, Warehouse, Quality, Procurement, and Finance teams.

• Provide timely updates regarding order status, supplier commitments, and execution risks.

• Participate in operational reviews and continuous improvement initiatives.

Accountability & Responsibilities

• Execute procurement activities in accordance with planning signals and established business processes.

• Ensure purchase orders are created, maintained, and closed accurately.

• Maintain high levels of SAP master data integrity and transactional accuracy.

• Resolve invoice exceptions and workflow issues within established service levels.

• Support supplier performance through proactive order management and communication.

• Maintain compliance with procurement policies, quality requirements, and regulatory expectations.

• Identify opportunities to improve efficiency, automation, and process performance.

Basic Qualifications

Bachelor’s Degree or Master's Degree and 5-9 years of experience in Supply Chain, Procurement, Purchasing, Operations, or a related field

Preferred Qualifications

• Experience in procurement, purchasing, supply chain execution, or operations.

• Strong SAP experience including Purchasing, Material Master, and Vendor Master processes.

• Experience with Ariba Network (AIN) invoice processing and supplier collaboration.

• Knowledge of Purchasing Info Records (PIRs), lead times, sourcing, and procurement master data.

• Experience managing purchase orders and supplier order execution.

• Strong analytical and problem-solving skills.

• High attention to detail and commitment to data accuracy.

• Effective communication and stakeholder management skills.

• Experience in a regulated manufacturing, pharmaceutical, biotechnology, or healthcare environment preferred.

• Knowledge of continuous improvement methodologies and operational excellence principles.

Impact

The Senior Associate, Raw Materials Planning plays a critical role in ensuring planning recommendations are accurately executed within ERP systems, enabling reliable material availability for manufacturing operations. By maintaining data integrity and disciplined transaction execution, this role directly supports uninterrupted patient supply, inventory optimization, and operational efficiency.