Principal Systems Engineer

Date Posted:

2026-09-15

 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.

Systems Engineering and Test Capabilities (SE&TC) offers the opportunity to design, develop, and integrate innovative solutions across the full systems engineering lifecycle. Working in a highly collaborative environment, engineers partner with multidisciplinary teams, subject matter experts, Chief Engineers, Chief Technologists, and customers to ensure complex systems are designed, integrated, and perform reliably from the first mission to every mission in support of the warfighter.

Based in Tucson, Arizona, SE&TC supports a portfolio spanning domains from the seabed to space. Programs include Ship-Launched Effectors such as Standard Missile® and Tomahawk®, Surface-Launched Effectors such as Javelin® and Coyote®, Air-Launched Effectors such as AMRAAM® and StormBreaker®, as well as advanced technologies including hypersonic and space systems.

As a Principal Systems Engineer, you will contribute directly to successful hardware or software requirements and integration for both fielded and development missile systems. This includes managing system and subsystem requirements, providing Systems Engineering technical oversight during integration and test activities, participating in verification and validation efforts for the system, and providing expertise in troubleshooting and failure investigations.

Your responsibility would span the entire Systems V to include concept development, system architecture, technical trade studies, functional analysis and decomposition, requirements development and maintenance, system verification, obsolescence, production, and system maintenance. You would be responsible for cross team collaboration, sharing program process knowledge, mentoring engineers, and working with the technical and program leads to execute program tasks.

This role is 100% on-site at our Tucson, AZ campus with the possibility of occasional travel.

What You Will Do

Update, maintain, and improve requirements and requirements documentation for development and production efforts, including but not limited to software and hardware subsystems

Create and manage systems architecture, requirements, interface definitions and description documents, system integration, and system verification using Cameo by collaborating with multiple product team leads and Subject Matter Experts (SMEs) to obtain necessary design information

Participate in technical conversations with the customer

Work with suppliers and the Supply Chain organization for procured items managed through the role of Responsible Engineering Authority (REA) for that assembly

Lead verification and validation efforts, ensuring all requirements are being assessed during Verification and Qualification testing

Conduct trade studies and present results to customers

Work closely with the Software and Hardware teams and Chief Engineer on a variety of technical tasks

Help to onboard, mentor, and guide team members using core Systems Engineering skills

Provide technical expertise in development, integration, troubleshooting and failure investigations

Lead Systems Verification Reviews with the Chief Engineer, Lead Systems Engineer, and Integrated Product Team Leadership

Work closely with the Systems, Software, Configurable Logic, Hardware and Test teams on a variety of technical tasks

Become the knowledgeable and ‘go-to’ Systems Engineer for the program

Support Statistical Process Control assessments in the factory and as part of hardware verification of missile sections and launch platforms as well as at higher level assemblies

Facilitate knowledge transfer within and across Integrated Product Teams and Cross Product Teams to include Cross-Functional collaboration and coordination

Lead peer reviews and formal release of Contract Data Requirements Lists (CDRLs) and Technical Data Package (TDP) documents

Support test equipment software integration and verification for system test

Support system performance analysis

Qualifications You Must Have

Typically requires a Bachelor’s Degree in a Science, Technology, Engineering, or Mathematics (STEM) discipline and a minimum of 8 years of relevant experience

Experience with at least one of the following: software, firmware or configurable logic, hardware, integration, and/or test

Experience in one or more of the following areas: Model-Based Systems Engineering (MBSE); requirements development; requirements management; requirements verification; CONOPS management; and system architecture

Qualifications We Prefer

Top Secret Clearance

Experience with RTX products or related technologies is strongly valued

Experience presenting analytical and technical presentations

Experience using Agile framework development methods / processes

Experience with Automation and/or Digital Engineering

Experience in the Defense Industry and specifically with military systems; tactics, techniques, and procedures, as well as Department of Defense customer infrastructure experience

Experience evaluating and mitigating technical risks

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

Software or Firmware Verification and Qualification testing experience

Prior experience with foreign military sales

Experience with Change Control Board (CCB), and document release experience (engineering and formal release)

Experience creating and linking requirements, architecture, and verification artifacts in Cameo

Experience with system and sub-system level requirements development, design and documentation of system level software architecture

Experience with performance analysis

Experience with DOORS, Cameo and/or Common Product Data Management (cPDM)

Learn More & Apply Now!

This position is onsite in Tucson, AZ.

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.

Tucson, AZ: https://careers.rtx.com/global/en/raytheon-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 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 respo