C/C++/Ada Principal Software Development Engineer (Onsite)

Date Posted:

2025-07-28

Country:

United States of America

Location:

RI101: 1847 W Main Rd 1847 W. Main Road Nimitz Building, Portsmouth, RI, 02871 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 Principal Software Development Engineer with a focus on developing complex systems in C/C++ and Ada. 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 onsite in Portsmouth, Rhode Island as part of the SeaSparrow Software Development Team. 

What You Will Do

• Design, develop, and maintain software applications using C/C++ and Ada 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 guiding standards for other engineers to follow.

• Stay current with industry trends and advancements in C/C++ and Java technologies, especially in relation to complex systems.

• Contribute innovative solutions to processes/products to enhance the efficiency and quality of the program.

• This position requires exclusive onsite presence.

Qualifications You Must Have

• Typically requires a bachelor’s in science, Technology, Engineering, or Mathematics (STEM) and a minimum of 8 years of experience.

• Proven experience in developing complex systems and applications using C/C++ and Ada or other object-oriented programming language.

• Experience in embedded systems, real-time systems, or large-scale applications.

• Experience with multithreading, memory management, or performance optimization in complex environments.

• Experience in a Unix/Linux and VxWorks operating systems.

• Experience providing technical guidance/mentorship to other engineers.

• 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

• Active Secret security clearance.

• Strong understanding of data structures, algorithms, and software design principles, particularly in high-concurrency and distributed systems.

• 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).

• Excellent problem-solving skills and attention to detail.

• Strong communication and teamwork skills.

• Experience leading moderate sized projects/efforts.

• Familiarity with version control systems (e.g., Clearcase).

• Experience leading a small team

• Can prioritize tasking and direct team members w/ minimal oversight from Program leadership

• Familiarity 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 e