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RTX

Principal Systems Engineer - SM-3 Development & Obsolescence Lead (Onsite)

United States

The salary range for this role is 118,300 USD - 224,900 USD.

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Job details

Pay: The salary range for this role is 118,300 USD - 224,900 USD.
Experience: Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat.
Posting language: English
Posted: Nov 9, 2026

Original job description

Date Posted:

2026-11-09

Country:

United States of America

Location:

US-AZ-TUCSON-807A ~ 1151 E Hermans Rd ~ BLDG 807A

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Security Clearance Type:

Secret - Current

Security Clearance Status:

Active and existing security clearance required on day 1

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.

Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world.

The Systems Engineering and Test Capabilities (SETC) organization is currently hiring a Principal Systems Engineer, for the Effectors team to join our Tucson, AZ location. SETC is an exciting and challenging environment where you will have the opportunity to design, develop and partner with multi-disciplines to shape innovative solutions for our customers. Join our organization and experience the Systems V engineering life cycle while interfacing with a variety of engineering disciplines, subject matter experts, Chief Engineers, Chief Technologists, the customer, and so many more to ensure we design, integrate, and strengthen our systems to work the first time and every time for our warfighters!

As the Standard Missile (SM)-3 IIA Development and Obsolescence SE Lead, you will be responsible for the Standard Missile (SM)-3 IIA Development and Obsolescence Program as a part of the SM-3 family of Programs. The Lead Engineer is responsible for leading the team that plans and executes Obsolescence Validation programs including requirements development, hardware / software integration, and formal qualification testing (FQT) as needed to qualify obsolescence redesign of Circuit Card Assemblies (CCAs) and other missile components. The successful candidate must have the ability to manage time and resources to meet assigned deadlines as well as leading other engineering projects as needs arise. The successful candidate must be able to lead a cross-functional team working multiple configurations of hardware and interface with suppliers that provide products and assemblies to Raytheon.

What You Will Do

Lead a multi-disciplinary team in an engineering environment.
Follow and/or recommend changes to established processes and procedures.
Oversee and coordinate the administrative and operational aspects of ongoing projects within program guidelines.
Provide technical oversight and direction to the functional leads within the IPT.
Responsible for looking forward for the “life” of the Program to ensure the team is adequately staffed to meet IPT commitments.
Provide presentations to communicate status to program leadership and the customer
Coordinate the preparation of proposals, business plans, proposal statements of work and specifications, operating budgets, and financial terms/conditions of contract.

Qualifications You Must Have

Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 8 years of relevant experience
Experience in sub-systems, systems engineering, requirement development and requirement validation
Experience leading a team

Qualifications We Prefer

Masters or PhD in Engineering, Computer Science, Math or Physics
Demonstrated strong team and strategic leadership skills.
Demonstrated exceptional customer focus.
Excellent communication skills, including verbal, technical writing, and engineering presentations to all levels of management.
Experience with systems engineering activities involving a complex system of systems architecture.
Experience developing system and subsystem level weapon specifications, interface design documents, and specifications for overall system architecture and performance objectives.
Experience in generating qualification plans and procedures for both hardware and software
Experience working with Computer in the Loop/Hardware in the Loop systems
Experience working SM-3
Experience in a team leader role or similar task leadership position

What We Offer

Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.
Relocation Eligible – Relocation assistance is available

Learn More & Apply Now!

Please consider the following role type definition as you apply for this role.
Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.
This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm
This position is an onsite role – Tucson, AZ : https://careers.rtx.com/global/en/raytheon-tucson,-az-location
We Are RTX

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 118,300 USD - 224,900 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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