Senior Principal Software Engineer

Date Posted:
2026-03-26
Country:
United States of America
Location:
US-CA-GOLETA-H03 ~ 6380 Hollister Ave ~ BLDG H03
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.Security Clearance Type:
DoD Clearance: Secret
Security Clearance Status:
Active and existing security clearance required on day 1

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.

Software Department team in Goleta, Santa Barbara County, CA is seeking a highly motivated, experienced Senior Principal Software Engineer to be part of their team supporting Electronic Warfare (EW) programs.

What You Will Do:

• Technical leadership and participation on collaborative, cross-disciplined integrated product teams, often employing agile system and software development operations to plan, specify, design, test, and integrate complex software and systems solutions.
• Responsibilities include inventions and innovations of new products and technologies, from architecture and design, through integration, lab test and field test.
• Collaborating effectively with other disciplines and senior technical staff, in addition to producing planning and technical work products for internal customers to form original solutions to complex problems.
• Developing software requirements and FPGA level interface requirements derived from system level requirements, developing associated architectures, performing simulations and analysis and testing of the software in a laboratory setting.
• Work in an advanced product development team environment with systems, firmware, electrical and software engineers. Think out-of-the box to root-cause issues and develop creative resolutions.
• Handle fast pace and dynamic product development environment including engagement with Systems' and Electrical Engineers
• This position will require occasional business-related travel.

Qualifications You Must Have:

• Typically requires a Bachelor's in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 10 years of prior relevant experience unless prohibited by local laws/regulations.
• Experience in software design, development, integration and test utilizing C / C++ and Ada, and software algorithm development.
• Experience with embedded microprocessors, system on a chip software design, FPGAs, high-speed transceivers, DDR, flash memories, block diagrams, signal analyses and signal generation, or similar.
• Experience as technical / project lead.
• Active and transferable U.S. government issued Secret security clearance is required prior to start date.

Qualifications We Prefer:

• Lab experience in product testing using logic analyzers, high-speed oscilloscopes, signal generators, and system-on-chip debugging tools.
• Experience developing real-time applications on embedded platforms, such as embedded Linux, VxWorks or Windows environments.
• Electronic Warfare Electronic Attack/Electronic Support (EA/ES), Radar, or Secure Communications technology knowledge.
• Tool familiarity: Visual Studio, Code Composer, ClearCase, Vitis, Git, Jira, Collaborator.
• Experience with interfaces and bus standards such as:1553, PCI/PCIe, Gb Ethernet,
• Experience in software lifecycle phases from architecture to system integration, and post-delivery maintenance.
• Experienced in Agile development processes.
• Experience with machine learning.

What We Offer:

• Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation.

Learn More & Apply Now!

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

• Relocation Eligible - Relocation assistance available
• 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 , 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: ;/li>

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 145,600 USD - 276,800 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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