Senior Buyer – Procurement (Petrochemical)

About the role

The Senior Buyer is responsible for purchasing supplies and services in line with the Purchasing Department’s policies and procedures. The role supports Westlake’s petrochemical operations by managing supply contracts, reviewing specifications, and ensuring timely delivery of quality materials.

Key responsibilities

• Review requisitions and inventory reports, and coordinate with purchasing management on specifications, quantities, and preferred vendors.
• Solicit, analyze, and negotiate quotations for low‑dollar supplies such as office, lab, motor‑pool, and spare‑part items.
• Maintain contracts, expedite deliveries, and ensure compliance with payment terms.
• Purchase subscriptions, publications, printed forms, and manage the form library.
• Interview vendors, approve invoices, and enter all purchase data into SAP.
• Provide 24‑hour after‑hours purchasing support and maintain contact with complex suppliers.

Required profile

• Bachelor’s degree.
• Minimum 7 years of purchasing experience, preferably in an industrial or petrochemical environment.
• Strong safety culture and knowledge of environmental, health, and safety standards.
• Excellent verbal and written communication skills.

Required skills

• Proficiency with SAP (CMMS) purchasing modules.
• Microsoft Office suite – Word and Excel.
• Familiarity with ISNetworld contractor management, Process Safety Management, ISO, and Responsible Care compliance.