Job Description
Qualifications
The ideal candidate will have a passion for creating high-performance applications and will be involved in all stages of the software development lifecycle
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++, Java 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 operating system
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
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., Git)
Familiarity with software development methodologies (Agile, Scrum, etc.)
Benefits
Relocation Eligible – Relocation assistance available
The salary range for this role is +6,000 USD - 200,000 USD
The salary range provided is a good faith estimate representative of all experience levels
Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays
Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement
Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement
Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance
Responsibilities
Design, develop, and maintain software applications using C/C++ and Java 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
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
Job description
Date Posted:
2026-12-03
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
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 Java. The ideal candidate will have a passion for creating high-performance applications and will be involved in all stages of the software development lifecycle.
What You Will Do:
• Design, develop, and maintain software applications using C/C++ and Java 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++, Java 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 operating system.
• 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., Git).
• 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: Trust, Respect, Accountability, Collaboration, and Innovation.
• Relocation Eligible – Relocation assistance available
Learn More & Apply Now!
• RTX solves some of the toughest challenges in aerospace and defense. That requires expansive thinking and bold innovation – and that, in turn, requires a culture that is diverse, equitable and inclusive.
• We embrace individuality and diversity of thought to fuel opportunity for our employees, our customers, and our communities. We work toward progress, knowing that a more inclusive world is critical to our mission. Not just in this moment, but always.
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.
Clearance Information: 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/c10+78.htm
This position is an onsite role - Portsmouth, RI
The salary range for this role is +6,000 USD - 200,000 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.
Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.
Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.
This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.
RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.
RTX is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, ****** orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.
Privacy Policy and Terms:
Click on this link to read the Policy and Terms
The ideal candidate will have a passion for creating high-performance applications and will be involved in all stages of the software development lifecycle
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++, Java 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 operating system
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
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., Git)
Familiarity with software development methodologies (Agile, Scrum, etc.)
Benefits
Relocation Eligible – Relocation assistance available
The salary range for this role is +6,000 USD - 200,000 USD
The salary range provided is a good faith estimate representative of all experience levels
Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays
Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement
Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement
Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance
Responsibilities
Design, develop, and maintain software applications using C/C++ and Java 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
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
Job description
Date Posted:
2026-12-03
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
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 Java. The ideal candidate will have a passion for creating high-performance applications and will be involved in all stages of the software development lifecycle.
What You Will Do:
• Design, develop, and maintain software applications using C/C++ and Java 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++, Java 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 operating system.
• 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., Git).
• 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: Trust, Respect, Accountability, Collaboration, and Innovation.
• Relocation Eligible – Relocation assistance available
Learn More & Apply Now!
• RTX solves some of the toughest challenges in aerospace and defense. That requires expansive thinking and bold innovation – and that, in turn, requires a culture that is diverse, equitable and inclusive.
• We embrace individuality and diversity of thought to fuel opportunity for our employees, our customers, and our communities. We work toward progress, knowing that a more inclusive world is critical to our mission. Not just in this moment, but always.
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.
Clearance Information: 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/c10+78.htm
This position is an onsite role - Portsmouth, RI
The salary range for this role is +6,000 USD - 200,000 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.
Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.
Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.
This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.
RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.
RTX is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, ****** orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.
Privacy Policy and Terms:
Click on this link to read the Policy and Terms
💡 Quick Summary
Seeking a career-building opportunity? The Principal Software Development Engineer (Onsite) position is now open for candidates interested in the IT Engineer & Developer Jobs sector. This role in Portsmouth offers a professional environment and growth potential.
Requirement Snapshot: Candidates should possess basic communication skills, a proactive attitude, and the ability to work in a team. Experience in IT Engineer & Developer Jobs is a plus.
