Senior Principal Software Engineer

Date Posted:

2026-02-24

Country:

United States of America

Location:

US-MA-TEWKSBURY-TB3 ~ 50 Apple Hill Dr ~ CONCORD BLDG, Tewksbury Tb3 300 Concord

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 Type:

DoD Clearance: Secret

Security Clearance Status:

Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

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 and detail-oriented technical Lead on our Fire Unit team as part of our Patriot Software Team in Tewksbury, Massachusetts.  Patriot is the world's pre-eminent air defense system, and we are currently developing software in support of new system capabilities. In this role, you will work closely with software developers, system architects, and product leads to ensure that the solutions we deliver meet our customers’ requirements. You’ll have the opportunity to work in a dynamic, fast-paced environment where your contributions will have a direct impact on the success of our products around the world. The position works in a SCIF environment with an optional 9/80 schedule accommodate work/life balance practices.

What You Will Do

• Collaborate across teams to define requirements and dependencies, including Radar, Command and Control, and Communication teams
• Collaborate with Program Managers, Chief Engineers, Test Architect, and multiple functions to support the development, implementation and deployment to support the Patriot Program
• Responsible for developing a team capable of delivering products  or being a software concept lead
• Support program growth through proposal development and the deployment and continuous improvement of people, processes, and tools

Qualifications You Must Have

• Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 10 years of prior relevant experience.
• Lead and / or project management experience
• Experience with complex systems
• Experience developing software with agile methodology in a team-based environment
• Ability to obtain Interim Secret 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.

Qualifications We Prefer

• Active Secret security clearance
• Well-developed communication, technical writing, oral presentation, and interpersonal skills.
• Exposure to radar software development and/or radar concepts
• Experience contributing in a team environment for the purpose of developing creative solutions to technical problems
• Ability to prioritize and make data-driven decisions
• Knowledge of data structures and algorithms, memory management, and multithreaded applications.
• Ability to promote a culture of continuous learning, cross-team collaboration and training.

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.

Learn More & Apply Now!

Relocation Eligible – Relocation assistance available

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 an