Principal Software Engineer

Location: US-MA-WOBURN-WB1 ~ 235 Presidential Way ~ SPENCER BLDG Date Posted: 2026-06-17 At RTX, we unite 185,000 engineers and technologists to solve complex, mission‑critical problems. The Raytheon team is looking for a Principal Software Engineer to support the Missile Defense Sensors (MDS) Software Department. The MDS Software mission is to deliver world‑class radar and Command & Control (C2) software for a wide array of surveillance and warning systems, including Army, Navy, Sea‑Based X‑Band Radar, Qatar Early Warning Radar, Taiwan Surveillance Radar Program, and GLOBUS systems. What You Will Do Lead the design, development, testing, and deployment of complex software solutions for radar and C2 systems. Analyze, implement, and test software modifications to enhance functionality, performance, and reliability of existing baselines. Drive resolution of complex trouble reports, using debugging tools to quickly identify and fix defects while optimizing code for performance. Provide technical leadership in an agile environment, driving continuous improvement and ensuring adherence to industry best practices. Collaborate with systems, integration, and test engineers to define requirements and guarantee seamless integration of software components. Guide the development and maintenance of CI/CD pipelines and automation tools to enable efficient software delivery. Act as a technical mentor, delegating tasks and giving guidance to junior and mid‑level engineers. Represent the software team in program‑level discussions, delivering technical expertise and ensuring alignment with program objectives. Stay current with emerging technologies and methodologies, driving innovation and advancing the team’s technical capabilities. What You Will Learn Advanced radar and C2 system concepts, including real‑time, mission‑critical processing. Strategies for optimizing software performance and scalability in large, complex systems. Agile and DevSecOps best practices to improve development, testing, and deployment processes. Leadership and mentorship techniques for fostering collaboration and technical growth. Cutting‑edge tools and technologies for building and maintaining mission‑critical software. Qualifications You Must Have Bachelor’s degree in STEM or equivalent, with 8+ years of relevant experience. Experience with C, C++, or Ada for software development, testing, and integration. Experience in agile methodologies such as Scrum, SAFe, or DevSecOps. Experience leading technical discussions and mentoring team members. Experience with debugging tools to identify and resolve bugs and optimize code performance. Active, transferable U.S. Secret security clearance required prior to start date; U.S. citizenship required. Qualifications We Prefer Extensive experience with radar software development or radar concepts. Experience in missile defense programs and large, complex systems. Experience with Atlassian Suite (Bitbucket, Artifactory, JIRA, Confluence), Jenkins, Eclipse, and Ansible. Knowledge of Linux operating systems, particularly Red Hat Enterprise Linux. Familiarity with CI/CD environments and pipelines, including DevSecOps. Strong problem‑solving skills and data‑driven decision making in fast‑paced environments. Ability to coach and delegate to junior engineers, fostering a culture of technical excellence and continuous improvement. Proven leadership experience, driving creative solutions to complex technical problems. Learn More & Apply Now Position type: Onsite. Employees working in Onsite roles work primarily onsite; commuting is the employee’s personal responsibility. This role requires a U.S. government security clearance. DCSA administers the clearance process. Salary range: $107,500 – $204,500 USD, based on experience. RTX considers role, function, responsibilities, education, training, and key skills when extending offers. Benefits may include medical, dental, vision, life insurance, short‑term and long‑term disability, 401(k) match, FSA, flexible work schedules, employee assistance program, parental leave, paid time off, holidays, and additional incentive compensation programs. 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. RTX provides affirmative action 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