Sr Principal System Engineer - NSMD - CIWS

Job Description

Date Posted : 2025-10-16

Country :

United States of America

Location :

AZ849 : RMS AP Bldg 849 1151 East Hermans Road Building 849, Tucson, AZ, 85756 USA

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 : Secret - Current

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.

Raytheon is seeking a Close-In Weapon System (CIWS) Systems Engineer to support multiple CIWS projects during development through testing. A Senior Principal Systems Engineer responsibilities include developing Hardware and Software requirements documents as part of smaller multidisciplinary teams, assess impacts to existing and future system architecture, coordinate across multiple simultaneous development efforts, develop Test Procedures / Documents for Hardware and Software Testing, execute hardware and software test activities, coordinating with government counterparts, providing briefings to program management, and collaborating with technical and program leads to execute program tasks. Responsibilities also include managing tasking of early career engineers.

What You Will Do

Develop Hardware and Software Requirements and SysML Diagrams

Assess Project impact on Overall System Architecture

Develop Hardware and Software Qualification Test Procedures / Documents

Coordinate with Program Management

Provide presentations to communicate status to program leadership and the customer

Review Requirements, SysML Models, and Test Procedure / Documents with Customer

Lead Hardware and Software Qualification testing with government witness

Accountable for execution of multiple program projects

Qualifications You Must Have :

Typically requires a Bachelor’s degree in Engineering, Science, Physics, Mathematics, or a related STEM degree and ten (10) years of prior relevant experience

Experience in sub-systems, systems engineering, requirement development and requirement validation

Active and transferrable US government issued Secret security clearance is required prior to start date.  US Citizenship is required, as only US citizens are eligible for security clearance.

Qualifications We Prefer :

Advanced Degree in Mechanical Engineering, Systems Engineering, Aerospace Engineering.

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 weapons system.

Experience developing system and subsystem level weapon specifications, interface design documents, and specifications for overall system architecture and performance objectives.

Experience working with MK15 Phalanx Close-In Weapon System (CIWS).

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 available for this position

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 onsite work in Tucson, AZ : -tucson,-az-location

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 124,000 USD - 250,000 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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