Senior Software Engineer (Mission Systems)

Location US-TX-MCKINNEY-513WD ~ 2501 W University Dr ~ WING D BLDG Date Posted 2026-06-08 Country United States of America Position Role Type Onsite Security Clearance DoD Secret, active after day 1; U.S. citizenship required for clearance. Position Overview Senior Software Engineer – Mission Systems Engineering Team, DFW area. What You Will Do Apply systems thinking to software engineering challenges including CONOPS development, V‑model alignment, specification tree analysis, and system decomposition. Perform software high‑level design at the System‑of‑Systems level and design, develop, and refine subsystem and platform interfaces for both hardware and software. Develop Software Requirements Specifications (SRS). Collaborate with Systems Architects, Technical Leads, and Senior Technical Fellows and cross‑discipline teams (Systems Engineering, Algorithms, Firmware and Hardware) on design exploration and problem solving. Architect, implement, test, and debug embedded real‑time software in heterogeneous hardware, firmware, and software systems. Participate in major design reviews including PDR and CDR. Mentor less experienced engineers. Occasional business travel may be required, up to 5%. Onsite role in McKinney, Texas, with local residency or relocation required. Qualifications You Must Have Typically requires a Bachelor’s degree in Science, Technology, Engineering, Mathematics, or STEM and a minimum of 5 years of prior engineering experience. Or an advanced degree and 3 years of relevant experience. Experience with software architecture for complex system of systems, subsystem interface design, and software system integration and test. Experience with engineering and modeling tools (Cameo or Enterprise Architect and MS Visio), along with familiarity with MOSA standards and OMS and AMS‑GRA. Experience developing, testing, and integrating real‑time software applications in C++ or related languages and experience with Linux, VxWorks, or other real‑time operating systems. Product‑domain experience in at least one of the following areas: RF or EO/IR Sensors Electronic Warfare Effectors Communications Multi‑domain Mission Systems 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. Qualifications We Prefer Demonstrated collaboration with Systems, Software, Firmware, and Hardware engineering teams. Ability to develop and present complex technical material at design reviews such as PDR and CDR. Ability to work effectively in fast‑paced, dynamically changing environments. Proactive problem‑solving and strong ownership mindset. Experience working in system integration lab (SIL) environments with physical hardware including test benches and simulators. Experience with Agile Scrum development practices. Familiarity with DevSecOps pipelines including static analysis, automated build and test, CI/CD, and test‑driven development. Hands‑on experience with Git for version control and GitLab or Artifactory for repository management. Active and transferable U.S. government issued Secret security clearance with special program access. What We Offer Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. We value Safety, Trust, Respect, Accountability, Collaboration, and Innovation. Relocation offered based on eligibility. Compensation & Benefits 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, 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. Equal Opportunity Employment 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. #J-18808-Ljbffr Raytheon