Sr. Buyer

Flint Hills Resources; El Salto; On-site; MXN 500,000 - 650,000; Full time

Job summary

Koch is seeking a Senior Buyer for our automotive manufacturing operations in Mexico. The role focuses on ensuring material availability, aligning demand, MRP signals, and supplier commitments with production requirements and customer delivery expectations.

The ideal candidate will demonstrate strong ownership, analytical capability, negotiation skills, and proven supplier management in a fast-paced environment.

Qualifications

• Bachelor’s degree and 3 years of experience in purchasing, procurement, materials, or supplier management.
• Strong knowledge of MRP/ERP, purchase order management, supplier follow-up, and inventory control.
• SAP experience required; advanced Excel and analytical skills are essential.

Responsibilities

• Execute purchasing activities to ensure material availability according to production schedules, customer requirements, inventory targets, and MRP signals.
• Manage purchase orders, confirmations, delivery dates, expedites, reschedules, cancellations, and supplier follow-up.
• Monitor supplier performance including on-time delivery, responsiveness, lead time adherence, quality support, and escalation management.
• Coordinate with Planning, Customer Service, Logistics, Warehouse, Engineering, Quality, Finance, and Operations to resolve material risks.
• Identify shortages, delivery gaps, supplier constraints, and potential customer impact; escalate with recovery plans.

Skills

MRP/ERP knowledge

Excel advanced

Analytical skills

Negotiation skills

Education

Bachelor’s degree in Supply Chain, Business Administration, Industrial Engineering, International Business, or related field

Tools

SAP

Job description

The Buyer is responsible for managing supplier execution, purchase order coverage, material availability, supplier performance, and cost competitiveness for direct and/or indirect materials.

This role ensures alignment between demand, MRP signals, supplier commitments, inventory targets, production requirements, and customer delivery expectations. The Senior Buyer must demonstrate strong ownership, analytical capability, negotiation skills, supplier management discipline, and the ability to manage escalations in a fast-paced automotive manufacturing environment.

What You Will Do

• Execute purchasing activities to ensure material availability according to production schedules, customer requirements, inventory targets, and MRP signals.
• Manage purchase orders, confirmations, delivery dates, expedites, reschedules, cancellations, and supplier follow-up.
• Monitor supplier performance including on-time delivery, responsiveness, lead time adherence, quality support, and escalation management.
• Coordinate with Planning, Customer Service, Logistics, Warehouse, Engineering, Quality, Finance, and Operations to resolve material risks.
• Identify shortages, delivery gaps, supplier constraints, and potential customer impact; escalate proactively with recovery plans.
• Support inventory optimization through PO alignment, excess and obsolete reduction, MOQ review, lead time validation, and supplier flexibility initiatives.
• Negotiate price, delivery, payment terms, MOQ, lead time, and service improvements within the scope of purchasing authority.
• Maintain accurate purchasing master data, supplier information, lead times, and PO parameters in ERP systems.
• Support cost reduction, localization, supplier development, and continuous improvement projects.
• Participate in supplier business reviews, corrective actions, and escalation meetings.
• Ensure compliance with Molex purchasing policies, ethical standards, internal controls, and automotive customer expectations.
• Support new product introductions, engineering changes, project launches, and end-of-life material management.

Who You Are (Basic Qualifications)

• Bachelor’s degree in Supply Chain, Business Administration, Industrial Engineering, International Business, or related field.
• 3 years of experience in purchasing, procurement, materials, or supplier management.
• Strong knowledge of MRP, ERP, purchase order management, supplier follow-up, and inventory control.
• SAP experience required.
• Strong Excel and analytical skills.

What Will Put You Ahead

• Experience supporting automotive customers or IATF 16949 manufacturing environments.
• Knowledge of supplier scorecards, contract management, cost reduction, and sourcing processes.
• APICS, CPIM, CSCP, Lean Six Sigma, or procurement certification preferred.
• Experience with global suppliers, long lead-time components, electronics, connectors, cables, or mechanical components.

Who We Are

At Koch, employees are empowered to do what they do best to make life better. Learn how our business philosophy helps employees unleash their potential while creating value for themselves and the company.

Additionally, everyone has individual work and personal needs. We seek to enable the best work environment that helps you and the business work together to produce superior results.