Principal Specialist, Procurement (Hybrid)

Date Posted:

2026-11-09Country:

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 Import/Export regulations)

Experience working with and leading cross-functional teams

Experience with Statements of Work

Experience with SAP

Ability to prioritize compliance to policies and procedures

What We Offer

Some of our competitive benefits package includes:

Medical, dental, and vision insurance

Three weeks of vacation for newly hired employees

Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option

Tuition reimbursement program

Student Loan Repayment Program

Life insurance and disability coverage

Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection

Birth, adoption, parental leave benefits

Ovia Health, fertility, and family planning

Adoption Assistance

Autism Benefit

Employee Assistance Plan, including up to 10 free counseling sessions

Healthy You Incentives, wellness rewards program

Doctor on Demand, virtual doctor visits

Bright Horizons, child and elder care services

Teladoc Medical Experts, second opinion program

And more!

Learn More & Apply Now!

Operations, Supply Chain and EH&S:

The next chapter of our future as an aerospace company is here, and we are excited about what this means for our employees and customers! Get onboard the Collins Aerospace Operations team and play a part in managing our innovative products from inception to delivery. The Operations team continues to grow and aims to strengthen the connection of Manufacturing Operations, Supply Chain and Environment, Health & Safety (EH&S) across Collins Aerospace. In this dynamic environment, you will have the opportunity to network across our businesses and functions, all while improving the productivity, quality and efficiency of our operations worldwide.

Collins Aerospace, a RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, comprehensive portfolio and expertise to solve customers’ toughest challenges and to meet the demands of a rapidly evolving global market.

WE ARE REDEFINING AEROSPACE.

*Please ensure the role type (defined below) is appropriate for your needs before applying to this role.

Hybrid: Employees who are working in Hybrid roles will work regularly both onsite and offsite. Ratio of time working onsite will be determined in partnership with your leader.

At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again.

now and be part of the team that’s redefining aerospace, every day!

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 95,500 USD - 181,700 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

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