Utilize strategic sourcing tools and industry best practices to identify, evaluate, qualify, solicit, negotiate, and manage suppliers to obtain materials and services that deliver the best overall value to CITGO while meeting safety, quality, reliability, cost, and delivery requirements. Establish and maintain vendor records within SAP, foster effective supplier relationships, support competitive sourcing initiatives, and conduct market and industry research to identify sourcing opportunities, mitigate supply risk, and support informed procurement decisions.