Senior Principal Software Engineer – On-site in Marlborough, Massachusetts, United States. The Strategic Communications Software Engineering Department is seeking a talented engineer to join cross-disciplinary, agile product teams and contribute to high-assurance software for aerospace and defense systems. You will own the full lifecycle of product development, from architecture and design through integration, testing, and field support, while adhering to mature software processes recognized by the Software Engineering Institute.

Qualifications include substantial software engineering experience across the development lifecycle, prior leadership experience (e.g., SW Architect, SW Lead), and proficiency with C++, real-time operating systems (RTOS), embedded programming, and processor/board architectures. Working knowledge of Linux, UML/OOA/D, and collaboration with multiple engineering disciplines is essential. Mentoring junior engineers is encouraged. An active, transferable U.S. government DoD security clearance (Secret) and U.S. citizenship are required on day one. A degree in Science, Technology, Engineering, or Mathematics (STEM) is typically expected, with minimum experience of 10 years (or an advanced degree with 7+ years).

Preferred skills include understanding system engineering artifacts (Use Cases, SysML diagrams), experience with Agile (Scrum, CI, TDD), DevOps tooling, containerized/microservice architectures, FPGA interfaces, Python scripting, and software integration on custom hardware. The role offers a comprehensive benefits package and may provide relocat

Senior Principal Software Engineer – On-site in Marlborough, Massachusetts, United States. The Strategic Communications Software Engineering Department is seeking a talented engineer to join cross-disciplinary, agile product teams and contribute to high-assurance software for aerospace and defense systems. You will own the full lifecycle of product development, from architecture and design through integration, testing, and field support, while adhering to mature software processes recognized by the Software Engineering Institute.

Qualifications include substantial software engineering experience across the development lifecycle, prior leadership experience (e.g., SW Architect, SW Lead), and proficiency with C++, real-time operating systems (RTOS), embedded programming, and processor/board architectures. Working knowledge of Linux, UML/OOA/D, and collaboration with multiple engineering disciplines is essential. Mentoring junior engineers is encouraged. An active, transferable U.S. government DoD security clearance (Secret) and U.S. citizenship are required on day one. A degree in Science, Technology, Engineering, or Mathematics (STEM) is typically expected, with minimum experience of 10 years (or an advanced degree with 7+ years).

Preferred skills include understanding system engineering artifacts (Use Cases, SysML diagrams), experience with Agile (Scrum, CI, TDD), DevOps tooling, containerized/microservice architectures, FPGA interfaces, Python scripting, and software integration on custom hardware. The role offers a comprehensive benefits package and may provide relocat