Purchasing Agent

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CITGO Petroleum Corporation is a recognized leader in the refining industry and operates under the well-known CITGO brand. CITGO owns and operates three refineries located in Lake Charles, LA.;
Lemont, IL.; and Corpus Christi, TX, and wholly and/or jointly owns 43 active terminals, nine pipelines and three lubricants blending and packaging plants. With approximately 3,300 employees and a combined crude capacity of approximately 829,000 barrels-per-day (bpd), positions CITGO as one of the best-branded supplier companies in the industry.

At CITGO our people are our most important resource. Our core values are Safety, Integrity, Respect, Accountability, and Care.

The Purchasing Agent is an on-site position located in Downers Grove, Illinois, at the CITGO Refinery Support Center. This role provides procurement support for assigned locations in accordance with Company policies, procedures, and business objectives. Responsible for the creation, administration, and maintenance of purchase orders, outline agreements, and other procurement contracts. 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.

Expected Salary Range: $88,000 - $120,000

The Final date to receive applications is October 20, 2026

• Bachelor's degree in Business, Supply Chain Management, Finance, Accounting, Engineering, or a related field and four years of procurement, purchasing, sourcing, contract administration, or related experience.
• Demonstrated experience negotiating commercial terms, pricing, and supplier agreements.
• Strong analytical, problem-solving, and decision-making skills.
• Ability to manage multiple priorities and deadlines in a fast-paced environment.
• Effective verbal and written communication skills with the ability to build relationships across all levels of the organization and with external suppliers.
• Proficiency in SAP or a similar Enterprise Resource Planning (ERP) system.
• Advanced proficiency with Microsoft Office applications, including Excel, Word, and PowerPoint.
• Strong organizational skills with attention to detail and contract administration capabilities.
• Ability to conduct market research, supplier evaluations, and cost analyses to support sourcing and procurement decisions.

Transportation Worker Identification Credential (TWIC): Candidates must be able to obtain and maintain a valid Transportation Worker Identification Credential (TWIC). The Maritime Transportation Security Act requires individuals needing unescorted access to regulated facilities to possess a TWIC issued in accordance with U.S. Coast Guard and Transportation Security Administration requirements. Employment is contingent upon meeting TWIC eligibility requirements.

• Knowledge of contract language, legal terms and conditions, insurance requirements, and indemnification provisions.
• Experience with strategic sourcing methodologies, supplier qualification, competitive bidding, and contract management.
• Experience with GEP SMART, GEP QUANTUM or a similar e-Procurement platform.
• Experience using Power BI or other business intelligence and reporting tools.
• Experience working in a manufacturing, refinery, industrial, energy, or related environment.

Review and Process Requisition s

• Review customer requisitions and issue Purchase Orders in SAP to procure materials and services at the best overall value while meeting requirements for cost, quality, safety, reliability, and delivery in support of assigned CITGO business units.
• Establish and maintain reliable sources of supply for required materials and services.
• Collaborate with customers to evaluate supplier and contractor performance and identify opportunities for alternative sourcing.
• Negotiate, execute, and administer contracts, including purchase orders, outline agreements, leases, and national agreements.
• Coordinate with internal and external stakeholders, including customers, suppliers, contractors, Legal, Risk…