Principal Systems Engineer - Requirements Development & Management (Onsite)

Date Posted:

2026-08-31

 Country:

United States of America

 Location:

US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805

 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:

DoD Clearance: Secret

 Security Clearance Status:

Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

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 a Principal Systems Engineer - Effectors you will be responsible for technical rigor of requirements documents, including developing/writing requirements, updating existing requirements, coordination of requirement maintenance, across team collaboration, sharing program process knowledge, mentoring engineers, and working with the technical and program leads execute program tasks. Responsibilities include, but are not limited to, requirements management, providing SE oversight during integration and test activities. In this role, you will have the opportunity to work on an effectors project pertinent to the systems lifecycle. This role is on-site at our Tucson, AZ campus.

What You Will Do

Update, maintain, and improve requirements and requirements documentation for development and production efforts

Support Design and System Verification testing

Provide SE guidance and support during integration and test efforts

Support system performance analysis, and Integration and Test

Mentor and guide team members, including engagement of Subject Matter Experts (SMEs)

Participate in Failure Investigations

Facilitate knowledge transfer within and across IPTs/CPTs to include Cross-Functional collaboration and coordination

Conduct Trade Studies and present results to customers

Support test equipment software integration and verification for system test

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 Systems Engineering in one or more of the following areas: Developing & Refining CONOPS, System Architecture, System Requirement, Requirements Verification Strategies & Plans

Experience with developing system requirements specifications and requirements management processes

Verification and Qualification testing experience

Qualifications We Prefer

Masters or PhD in Engineering, Computer Science, Math or Physics

Experience working with multi-disciplinary technical and/or engineering teams

Experience in Systems Engineering on a Missile Program

Experience in the Defense Industry beyond Raytheon

Experience using Agile framework development methods / processes

Experience with Model-Based Systems Engineering and associated tools

SW/FW Verification and Qualification testing experience

Prior experience with foreign military sales

A self-starter who can take on task with limited guidance

Customer focus and collaboration skills

Experience with performance analysis

Experience with DOORS and/or cPDM

Ability to perform trade studies to optimize system performance

Understanding of Systems Engineering Product Development Cycle

Familiarity with system safety, reliability, and configuration management

Experience with Agile, Model-Based Systems Engineering (MBSE), and/or Digital Engineering

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 107,500 USD - 204,500 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, bu