Senior Systems Engineer

Date Posted: 2026-09-13 Country: United States of America Location: US-TX-MCKINNEY-513WD ~ 2501 W University Dr ~ WING D BLDG 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.  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. What You Will Do: Create and Decompose requirements, define system interfaces and help determine how requirements will be validated and verified by the test team Support system performance analysis, Integration and Test. Conduct tests on optical and electrical components and integrated systems, collect test data, and analyze results to optimize performance. Identify and resolve issues during testing, support system design enhancements, and provide troubleshooting and calibration for ongoing and specialized programs. Communicate with program management, functional, vendors, and customers Perform integration, verification, and validation testing/reporting to ensure the system under test performs according to specifications/requirements. Document test results by creating and presenting comprehensive test reports to various stakeholders. Analyze and define how the system works creating use cases Provide engineering support for the execution of a portion of the programs test program including test processes and baseline definition and test architecture design Support and attend technical reviews and technical interchanges in support of the program Perform system performance evaluations and in-depth analysis to identify opportunities for new functionality and system enhancements Travel, both domestic and international, to support customer events, not to exceed 25%. Qualifications You Must Have: Typically requires a bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM) and minimum of 5 years of prior relevant experience or an advanced degree in a related field and minimum 3 years’ experience to include experience with systems engineering, lifecycle, roles and functions, with specific experience in one or more of the following areas: Concept of Operations (ConOps) development, requirements definition and management, functional analysis or interface definition and control. The ability to obtain and maintain a U.S. government issued Secret security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Qualifications We Prefer: Experience with system software, system hardware, system requirements, and/or test. Government contract with experience in systems engineering MATLAB, Python, and/or other programing languages. DOORS, Doors Next Gen (DNG), Rhapsody, Cameo, and/or other digital engineering tools. Experience working in an integration lab, test facility, or field environment supporting integration and/or verification to ensure the system under test performs according to specifications/requirements Experience presenting technical findings, analyses, and solutions to leadership and customers. Monte Carlo simulations to model system performance, analyze outcomes, and enhance testing strategies. Identify root causes of system failures through detailed diagnostics, implementing timely fixes to restore functionality, and develop preventative measures to avoid recurrence. Agile principles, to include Agile systems engineering practices and understanding of Agile roles Develop testing procedures, reports, and troubleshooting complex systems 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 for this position  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 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 sched