Date Posted: 2025 10 20 Country: United States of America Location: CA806: 8650 Balboa Avenue San Diego 8650 Balboa Avenue San Antonio Building, San Diego, CA, 92123 USA 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: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calling â 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. The RMD team is looking for a Principal Systems Engineer to support the Missile Defense Sensors (MDS) department. The MDS department provides subject matter expertise for concept development, architectural design, requirements generation & flow down, modeling and simulation, systems analysis, integration, test and evaluation of world class Missile Defense & Sensor Systems to be achieved through our people, processes, technology and performance. This position is on site in San Diego, CA. What You Will do: You will be working as part of a team to define radar system requirements, design architectures and algorithms in support of those requirements and collaborate with software development teams to ensure effective implementation. Some specific responsibilities: Analyzing radar system performance data with respect to requirements Identifying performance deficiencies and proposing solutions Defining and prototyping new algorithms to enhance system performance Presenting plans, designs and system performance to peers, internal leadership and external customers Providing subject matter expertise to agile software development teams to ensure proper implementation of requirements You will be completing the above responsibilities in one or more capability areas including: Electronic Protection, signal processing, applied mathematics Hypersonic threat defense Tracking, discrimination, search, and battle manager interfaces Radar calibration, diagnostics, deployed site support Modeling and simulation of tactical software Qualifications You Must Have: Typically requires a Bachelor's in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 8 years of prior engineering experience or equivalent experience. Ability to obtain and maintain U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for the required security clearance. Qualifications We Prefer: Experience with Battle Management command, Control, Communications, Computers and Intelligence (BMC4I) systems, Radar Systems or signal processing techniques Experience with developing, documenting and maintaining processes, methods and tools Ability to develop technical solutions to complex issues Experience working with Matlab, C/C , Java or DOORS Analytic, technical and problem solving skills Experience with MS Office Suite Experience with system level requirements development, documentation and maintenance and/or requirements development and design of system level software architecture Experience with radar system concepts; detection, discrimination, track and signal processing algorithms and their behaviors and performance Experience with the development and coding of system models, algorithms, test vectors and analysis tools in support of analyzing radar requirements and performance Experience and interest in Information Assurance/Cyber Engineering requirements, determination, development and implementation Experience in using AI/ML and signal processing in database and algorithm design and enhancement Previous military service Ability to interface with customers and lead technical solutions to complex user needs Active DoD Secret Clearance or greater 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. 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 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 101,000 USD 203,000 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. Privacy Policy and Terms: Click on this link to read the Policy and Terms RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry leading businesses â Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.