Senior C/C++ Software Development Engineer

Date Posted:

2025-12-23

Country:

United States of America

Location:

MA133: Tewksbury, Ma Bldg 3 Concord 50 Apple Hill Drive Concord - Building 3, Tewksbury, MA, 01876 USA

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​

Security Clearance:

DoD Clearance: Secret

At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring 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. Our team solves tough, meaningful problems that create a safer, more secure world.

We are seeking a skilled Senior Software Development Engineer with a focus on developing complex systems in C/C++. The ideal candidate will have a passion for creating high-performance applications and will be involved in all stages of the software development lifecycle.

You will work in Tewksbury, Massachusetts as part of the Patriot Software Development Team. 

What You Will Do

• Design, develop, and maintain software applications using C and C++ for complex systems and applications.
• Collaborate with cross-functional teams to define, design, and implement new features, ensuring system integration and scalability.
• Troubleshoot, debug, and optimize existing code for performance and efficiency in complex environments.
• Write and maintain comprehensive documentation for software applications, including system architecture and design specifications.
• Participate in code reviews and ensure adherence to coding standards and best practices.
• Stay current with industry trends and advancements in C/C++ technologies, especially in relation to complex systems.
• Light travel and off-hours testing (2nd or 3rd shift) may occasionally be required.
• This position requires exclusive onsite presence.

Qualifications You Must Have

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience unless prohibited by local laws/regulations.
• Experience in developing complex systems and applications using C/C++
• Experience in embedded systems, real-time systems, or large-scale applications.
• Experience in a Unix/Linux operating system.
• The ability to obtain and maintain a U.S. government security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer

• Active Secret security clearance.
• Understanding of data structures, algorithms, and software design principles, particularly in high-concurrency and distributed systems.
• Experience with multithreading, memory management, and performance optimization in complex environments.
• Experience with Network Communication Protocols, Shell Scripting (tcsh, csh, bash), software development tools like Git/Clearcase, software debuggers, and using embedded RTOSs (e.g. VxWorks, Integrity).
• Experience with version control systems (e.g., Git).
• Experience with software development methodologies (Agile, Scrum, etc.).

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

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.

This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm 

This position is in Tewksbury, Massachusetts. Living in Massachusetts means you’ll have easy access to the ocean and locations of historical significance. You can enjoy varied outdoor activities ranging from hiking and camping to c