> Markdown version of [/jobs/ext/3137916-principal-software-engineer](https://www.wearedevelopers.com/jobs/ext/3137916-principal-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer - **Company:** RTX - **Location:** Woburn, MA, United States - **Experience:** Expert - **Salary:** $107,500.0 - $204,500.0 - **Contract:** Contract - **Skills:** Testing (Software), Agile Methodology, Systems Engineering, Confluence, JIRA, C++ (Programming Language), Software Code Optimization, Continuous Integration, Software Debugging, Eclipse (Software), Scrum Methodology, Red Hat Enterprise Linux, Ansible, Software Engineering, Software Requirements Analysis, Software Systems, Atlassian Tools, Data Analytics, Bitbucket, Software Performance, Devsecops, Jenkins, Artifactory - **Published:** September 29, 2026 - **Apply:** https://dejobs.org/x/x/71E3626D960943B79F2DED509758BC30/job/ ## About the Role Active and transferable U.S. government issued security clearance is required prior to start date., Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date, * Typically requires a Bachelor's in Science, Technology, Engineering, or Mathematics (STEM) and 8 years of prior relevant experience unless prohibited by local laws/regulations. * Experience in C, C++, or Ada for software development, testing, and/or integration. * Experience in agile software development methodologies, such as scrum, SAFe, or DevSecOps. * Active and transferable U.S. government issued Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance., * Experience with leading technical discussions and mentoring team members. * Experience in debugging tools to identify and resolve software bugs and optimize code for performance. * Experience experience with radar software development and/or radar concepts. * Experience in missile defense programs and large, complex systems. * Experience working with tools such as Atlassian Suite (e.g., 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 experience with DevSecOps. * Strong problem-solving skills and the ability to make data-driven decisions in a fast-paced environment. * Ability to coach and delegate work to junior engineers, fostering a culture of technical excellence and continuous improvement. * Proven leadership experience in a team environment, driving creative solutions to complex technical problems. ## Description 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 provide world-class radar and Command and Control (C2) Software for our customers' wide array of surveillance and warning systems. As a Principal Software Engineer, you will lead the design, development, and delivery of mission-critical software solutions for one of our programs. This role requires advanced technical expertise, leadership skills, and a demonstrated ability to drive innovation and foster collaboration across cross-functional teams. You will also mentor junior engineers, contribute to strategic decision-making, and ensure the successful delivery of high-quality software solutions in a fast-paced, agile environment. This will be an onsite role in either Woburn, MA or Tewksbury, MA depending on the program assigned. What You Will Do * Lead the design, development, testing, and deployment of complex software solutions in support of radar and Command and Control systems. * Analyze, implement, and test software modifications to enhance the functionality, performance, and reliability of existing system baselines. * Drive the resolution of complex software trouble reports, leveraging debugging tools to quickly identify and fix software defects while optimizing code for performance. * Provide technical leadership in an agile execution environment, driving continuous improvement initiatives and ensuring adherence to industry best practices. * Collaborate with systems engineers, integration and test engineers, and other stakeholders to define system requirements and ensure seamless integration of software components. * Act as a technical mentor and coach, delegating tasks and providing guidance to junior and mid-level engineers. * Represent the software team in program-level discussions, providing technical expertise and ensuring alignment with program objectives. * Stay current with emerging technologies and methodologies, driving innovation and advancing the technical capabilities of the team. What You Will Learn * Advanced radar and/or Command and Control systems 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 software development, testing, and deployment processes. * Leadership and mentorship techniques to foster collaboration and technical growth within the team. * Cutting-edge tools and technologies for building and maintaining mission-critical software solutions. ## Related Videos - [GitOps for the people](https://www.wearedevelopers.com/videos/461-gitops-for-the-people) - [Dev & Test in the Cloud? 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