Principal Software and Systems Test Engineer

• Design, develop, and execute test plans for signal processing and radar system software
• Implement and maintain C++‑based test tools, frameworks, and automated test solutions
• Use MATLAB or Python to analyze large RF and sensor data sets, perform algorithm assessment, and verify system performance
• Integrate signal processing algorithms into hardware testbeds and support lab‑based system evaluation
• Conduct debugging, fault isolation, and performance tuning across software and hardware interfaces
• Collaborate with software, systems, signal processing, and hardware engineering teams to resolve issues and validate requirements
• Participate in design reviews, requirements verification, and system‑level testing events
• Support documentation, technical reporting, and data‑driven briefings to internal and external stakeholders

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



• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience unless prohibited by local laws/regulations.
• Experience developing or testing software using C or C++
• Experience analyzing data sets using MATLAB or Python
• Experience with signal processing, radar systems, RF systems, or sensor modeling
• Experience working in Linux/UNIX environments
• The ability to obtain and maintain an interim secret U.S. security clearance prior to the start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

• Experience with radar detection, tracking, imaging, or discrimination algorithms
• Experience with hardware/software integration and lab‑based system testing Familiarity with ionospheric propagation dynamics
• Familiarity with modeling and simulation environments
• Experience with version control tools such as Git
• Knowledge of real‑time processing, performance optimization
• Advanced degree in Engineering, Physics, Applied Math, or related technical field

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.

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.