**Date Posted:** 2026-02-25 **Country:** United States of America **Location:** US-RI-PORTSMOUTH-PS1 ~ 1847 W Main Rd ~ NIMITZ 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 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 Senior Systems Engineers interested in ocean engineering. Our Portsmouth, RI team primarily supports programs in the naval undersea and naval surface domains, including sensor systems, mine countermeasures, submarines, torpedoes, combat systems, and ship architecture/integration. Our engineers perform underwater acoustics analysis and tracking, develop and manage system requirements, integrate hardware and software, develop test plans and procedures, debug and evaluate system functions and interfaces, and verify system requirements in support of final sell-off to the customer. We put our systems together, exercise them in the lab or in the field, measure and analyze performance, and ensure our products work the first time and every time. Every day presents a different set of challenges to overcome. You'll be expected to collaborate across disciplines and partner to implement solutions while working autonomously with limited oversight. In this role, you'll get to know a little bit about every aspect of the system and have a direct hand in making it all work together, supporting teams of engineers engaged in integration and test efforts. This position requires technical expertise and the ability to make decisions independently to drive the success of complex projects. **What You Will Do** + Perform system performance evaluations and in-depth analysis to identify opportunities for new functionality and system enhancements. + Develop and execute Monte Carlo test runs to assess system performance under varied conditions. + Work across disciplines to develop and implement innovative solutions to complex challenges. + Create/modify documentation in support of reviews associated with formal testing and effectively communicate results to leadership and stakeholders. + Perform integration, verification, and validation testing/reporting to ensure the system under test performs according to specifications/requirements. + Travel, both domestic and international, to support customer events, with an expected travel requirement not exceeding 25%. **What You Will Learn** After completion of comprehensive on-the-job training, the candidate will be a part of a team supporting Systems Engineering and Test Capabilities (SE&TC) activities across the product development lifecycle. **Qualifications You Must Have** + Typically requires a degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 5 years of prior relevant experience. + Experience with MATLAB, Python, and/or other programing languages. + Experience with DOORS, Rhapsody, Cameo, and/or other digital engineering tools. + Experience with system software, system hardware, system requirements and/or test. **Qualifications We Prefer** + Experience using Monte Carlo simulations to model system performance, analyze outcomes, and enhance testing strategies. + Experience with identifying root causes of system failures through detailed diagnostics, implementing timely fixes to restore functionality, and develop preventative measures to avoid recurrence. + Experience presenting technical findings, analyses, and solutions to leadership and customers. + Experience in developing testing procedures, reports, and troubleshooting complex systems + Experience working in an integration lab, test facility, or field environment. **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 Eligibility– 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. Welcome to Raytheon in Portsmouth, RI (https://www.youtube.com/watch?v=y19z-RZzVQ4&list=PL5Sw9Y9B7leUXEgh-kMIMUrMRVnSq4ifB&index=15) **_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 86,800 USD - 165,200 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 (http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice) to read the Policy and Terms Raytheon Technologies is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.