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RTX

Principal Software Engineer - Advanced Radar Systems, Onsite

United States

The salary range for this role is 118,300 USD - 224,900 USD.

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Job details

Pay: The salary range for this role is 118,300 USD - 224,900 USD.
Apply by: Nov 13, 2026
Experience: Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant software development experience.
Posting language: English
Posted: Nov 11, 2026

Original job description

Date Posted:

2026-11-11

Country:

United States of America

Location:

US-CA-EL SEGUNDO-R01 ~ 2000 E Imperial Hwy ~ BLDG R01

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required. 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:

Active and existing security clearance required after day 1

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.

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 Space and Air division in El Segundo, CA is seeking a Principal Software Engineer to be part of their product development team in the Advanced Radar Systems programs.

Visit Raytheon Landing Page: Raytheon El Segundo, CA Location

What you will do:

Work on complex technical problems and provide highly innovative solutions.
Follow stringent software processes for unit testing, software design, and code reviews to ensure high-quality deliverables and compliance.
Deliver robust, reliable, and highly maintainable software products to Customer
Effectively contribute at all phases of the SW development lifecycle, including SW/HW integration and Regression Testing
Develop Real-time software, specifically pertaining to various radar mode independent functions and capabilities, using various languages, tools, applications.
Demonstrate strong investigation and troubleshooting skills to assess issues and develop solutions.
Work effectively with team across multiple disciplines, internal and external
Effectively contribute to program and customer meetings/reviews
Support the program leads as needed regarding cross-functional collaboration, technical decision making, and problem resolution.
Help to ensure performance to technical, cost, schedule, quality.
Support of system and software requirements and architecture generation and analysis as needed.
Contribute to the successful completion of program milestones and customer deliverables
Work Location: Onsite at our El Segundo, CA Campus
Must be able to obtain "special access programs" (SAP/SAR) for continuation of employment.

Qualifications you must have:

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant software development experience.
Development experience coding in C/C++ or related languages/tools in radar-development software is required.
Experience working on UNIX, VxWorks, Windows or FreeRTOS
Experience working in an agile/scrum team hyper-collaborative team environment using typical agile oriented tool suite.
Experience with design, code, integration, and test of software into a large software baseline and large system
The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer:

Current Secret Clearance
Experience in managing the full software development lifecycle: from requirements definition and planning through system and software architecture, detailed design, implementation, integration, testing, documentation, and production release.
Experience with the following development tools: In-Circuit Emulators (ICE), Debuggers, Simulators, Logic Analyzers, Protocol Analyzers, Oscilloscopes, Git, Bitbucket, MPLAB X
Exhibit strong interpersonal and written communication skills, with the adaptability to quickly learn new technologies and contribute effectively to wide range of projects.
Experience interfacing with Customers to resolve field problems, improving customer satisfaction and reducing downtime.
Experience in leading rapid software development and integration of customized firmware solutions.
Experience with the architectural modernization of legacy single-threaded embedded firmware, transitioning from a main-loop-based design to a FreeRTOS-based multitasking architecture with inter-task communication (IPC) mechanisms. Thus, establishing a robust, fully functional baseline for future development
Experience developing Radar Software applications
Direct experience with Agile methodologies.
Proven analytical skills with the ability to troubleshoot tool and system operation performance issues.
Experience with large complex systems such as airborne sensors.

What We Offer:

A total rewards package that goes above and beyond with compensation; healthcare, wellness, retirement, and work/life benefits; career development and recognition programs.
Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance and child/adult backup care.
Relocation Eligible – Relocation assistance 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 , 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

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 118,300 USD - 224,900 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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More about this job

Skills

Research
Unit testing
Regulatory compliance
Troubleshooting
Collaboration
Decision making
SAP
Software development
C
C++
UNIX
Microsoft Windows
Documentation
Emulators
ICE
Debuggers
Git
Atlassian Bitbucket
Communication skills
Adaptability
Customer service
Firmware
Multitasking
Agile
Analytical skills
Troubleshoot

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Work requirements

Jobs in the United States