Principal System Software Integrator

Date Posted:

2026-08-28

Country:

United States of America

Location:

US-AZ-TUCSON-M13 ~ 3601 E Britannia Dr ~ BRITANNIA M13

Position Role Type:

Hybrid

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 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.

The Software organization develops software applications, including integration and test on missiles, launchers, radars, naval systems, fire control and other complex systems.  Our precision software and firmware integrate operating systems, device drivers, networking, and control software to bring together sensor, guidance, and flight control processing features to complete the mission.  The Software org is made up of several Centers located across the country, responsible for all aspects of the software development lifecycle.  Our 4000+ software engineers design, develop, and build innovative solutions for our customers.  Join our fast-paced agile teams on the leading edge of technology. 

As part of the Software Engineering Directorate’s (SWE) Effectors Center (EC) team, you will be an integral part of helping Raytheon further our vision to be the global leader in core and next-generation weapon and security solutions.  By any measure, Raytheon is an exciting and rewarding place to work.  We pride ourselves on developing mission-driven, world-class talent. The result is a workforce that takes pride in the company and consistently delivers superior solutions.

Our Principal System Software Integrator is a technical position that works in an Integrated Product Team (IPT) environment to manage implementation, testing, debugging, and deployment of newly released government furnished Software and Firmware (FPGA) solutions that meet current and next generation autonomous avionics systems’ needs in a production environment.

Working with a cross-discipline team, the candidate must have experience in managing configuration, testing, and integration of software for edge or embedded devices and/or subsystems (like telecom, medical, IoT, automotive, or robotics) where hardware operation, time critical function, functional reliability, mission assurance, and safety might be major concerns.  

The successful candidate will work with Product Owners, Chief Engineers, Management and other IPT members to ensure the integration and deployment of embedded software reliably operates with the intended functions. 

This position is within the Effectors Center of the Software organization, and is a hybrid role located in Tucson, AZ. 

What You Will Do

• Manage configuration control, integration, implementation, testing, and debugging of embedded software within heterogenous systems composed of firmware and hardware 

• Working within a cross-discipline team to ensure successful production integration and high first pass yield rate of acceptance test results in a production environment

• Understand changes to Government Furnished SW/FW and create a plan to integrate new versions into production flow 

• Coordinate with Raytheon Contracts, USG customer, and external companies to develop a Software/Firmware delivery schedule 

• Obtain documentation from US Government customers and external suppliers (e.g. release notes)  

• Document firsts and risks associated with using new SW/FW at test events 

• Track and update Software/Firmware configurations for incremental development updates and production releases (e.g. drawings, interface control documents, version description documents, test requirements documents, etc.) 

• Understand and document the system topology and messaging across a weapon system 

• Present at technical interchange meetings and quarterly program reviews to internal and external audiences 

• Create Software/Firmware US contract deliverable documents, including periodic reports 

What You Will Learn

• Working across a product line in collaboration with other teams.

Qualifications You Must Have

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience 

• Experience including at least two of the following: Embedded C++ Software, Embedded Software Security, Software Architecture Design and Implementation 

• Experience with complex systems involving the integration of hardware, firmware, and software 

• Ability to obtain Interim Secret Level 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.

Qualifications We Prefer

• Experience working with external companies through USG customer to support software development 

• Experience developing plans to verify Government Furnished SW/FW (i.e. in laboratory hardware in the loop and factory test equipment) 

• Experience using SW build management tools (e.g. Jira, Git, etc.) 

• Experience verifying software functionality and investigating anomalies 

• Familiarity with layered architectural principles, and their limitations 

• Familiarity with reading electrical schematics and relating it to software function 

• Experience using lab instruments like power-supplies, digital multi-meters, oscilloscopes, and logic analyzers 

• Experience collaborating with engineering teams to test, troubleshoot and resolve anomalies in support of delivering systems (of various size) involving the integration of hardware and software 

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 Offered Based on Eligibility

Learn More & Apply Now!

Please consider the following role type definition as you apply for 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.

• Clearance Information: This position requires 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 

• Location Information: This hybrid position includes onsite work at our campus in beautiful Tucson, AZ. Tucson has a friendly, caring, and laid-back atmosphere, combined with the innovation and energy of a metropolitan region, and recognized as one of America’s 10 Best Small Cities. Surrounded by beautiful mountains, colorful Sonoran Desert landscape and majestic saguaro cacti, Tucson is blessed with some of nature’s best work. Tucson is known for its bright blue skies, and with more than 310 sunny days per year, Tucson’s fantastic weather lets residents enjoy the outdoors year-round.

• Virtual Fly Over City of Tucson & Community, YouTube Video Links

• “Raytheon In Tucson”: https://careers.rtx.com/global/en/raytheon-tucson,-az-location

• “Tucson is Awesome”: https://www.youtube.com/watch?v=i65wOwKcNIQ

• “Winter in Tucson”: https://www.youtube.com/watch?v=yZdKKkF0QkE

#TucsonSoftware

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, 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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