Principal Systems Engineer, String Engineer Onsite

Date Posted: 2026-05-28 Country: United States of America Location: US-MA-WOBURN-WB1 ~ 235 Presidential Way ~ SPENCER BLDG 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. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: Secret - Current Security Clearance Status: Active and existing security clearance required on 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’s Systems Engineering and Test Capabilities (SE&TC) Surface Radars & Sensors Center is seeking a motivated and experienced Principal System Integration & Test Engineer to support radar capability development. This is your opportunity to work with cutting-edge radar technology, leveraging your expertise in Linux operating systems, hands-on experience with system hardware and software in test lab environments, and exceptional troubleshooting skills to solve complex technical challenges. If you're a proactive problem-solver with a collaborative mindset, ready to make an impact in the aerospace and defense industry, we want you to join our innovative team driving the future of advanced radar systems. What You Will Do Assist in planning, executing, and documenting system integration and test activities for a radar program in a laboratory environment. Perform hands-on testing and integration of hardware and software, with a focus on systems running Linux-based operating environments. Troubleshoot and resolve system-level issues related to software, hardware, and operating systems under the guidance of senior engineers. Collaborate across multidisciplinary teams to identify and address technical challenges. Develop and execute detailed test plans, procedures, and reports in accordance with program requirements. Support system-level test readiness reviews, test execution, and post-test analysis. Ensure adherence to safety protocols, quality standards, and program-specific processes. Willingness to support 5% domestic travel 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 MATLAB, Python, Shell scripting, Linux, and/or Unix. Experience with hardware and/or software testing in an engineering lab environment. Experience with networking principles. Preferred Qualifications Familiarity with test equipment and tools such as oscilloscopes, spectrum analyzers, and data acquisition systems. Experience working with X-Band radar systems. Knowledge of electronic hardware configuration and installation, software installations on hardware devices, network configurations, operations of software in String/HWIL facility, Knowledge of RF systems, radar signal processing, and real-time systems. Practical knowledge of system security concepts and tools in Linux environments. 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 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. 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. 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 – 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.