Principal Specialist, Procurement (Hybrid)
RTXDate Posted: 2026-11-09

 Country: United States of America

 Location: US-CA-FULLERTON-676 ~ 1801 Hughes Dr ~ BLDG 676

 Position Role Type: Hybrid

 U.S. Citizen, U.S. Person, or Immigration Status Requirements: U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.

 Security Clearance Type: None/Not Required

 Security Clearance Status: Not Required At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. We are seeking an experienced Buyer to support high-value procurement activities for materials, software, and services. In this role, you will own supplier relationships, negotiate pricing and terms, issue and manage purchase orders and subcontracts, and drive supply chain performance while ensuring compliance with customer and government requirements. What You Will Do Execute and manage complex, high-visibility and high-value IOTs, POs, and Subcontracts for materials, software, and services in support of domestic and international commercial, DoD, FAA, and FMS contracts Ensure strict compliance with Government (FAR, DFAR, AMS), Customer and company requirements from R&D through low-rate initial production, production/deployment, sustainment, and program closeout Collaborate cross-functionally across Integrated Product Teams (IPTs) including Program Management, Quality, Finance, Contracts, Global Trade and Legal Identify, evaluate, manage, and maintain strong strategic relationships with suppliers, focusing on quality, reliability, and cost-efficiency Execute bid/proposal activities, PIAs/NDAs, and Teaming Agreements for new business and strategic pursuits Review and assist in the development of Subcontract Statements of Work (SSOW) Perform in-depth price analyses, conduct due diligence/comprehensive supplier assessments, proactively identify risks & opportunities including material shortages or supplier instability, and develop contingency plans Lead negotiations (price, schedule, terms/conditions) Manage supplier performance (cost, schedule and quality) against key performance indicators to drive continuous improvement and ensure compliance with contractual obligations Support PO/Subcontract related invoice approvals, inquiries, and issues Meticulously reviews, interprets, and implements company policies, procedures, process instructions, and operational workflows with a high level of accuracy. Qualifications You Must Have Typically requires a University Degree and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract. Prior Procurement experience Prior experience with Microsoft Office products including Word, Excel, and PowerPoint Qualifications We Prefer Master's Degree Experience in a similar contracts/procurement role with responsibility for sourcing, placing orders, price analysis, negotiations, PO documentation, supplier management, and compliance to company policies and procedures Experience with FAR, DFAR, and FAA AMS Experience with international requirements (including I…