Principal Software Engineer

Date Posted:

2026-07-20

Country:

United States of America

Location:

US-CA-SAN DIEGO-SD1 ~ 8650 Balboa Ave ~ SAN ANTONIO BLDG

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:

Active and existing security clearance required on day 1

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.

Raytheon’s software development team in San Diego, California, is growing! We are seeking a talented and motivated Principal Software Engineer to work onsite.

Our Culture | RTX Careers

What You Will Do:

Lead a Software Team of 10+ engineers, both on-site and remote

Design, develop and integrate distributed microservices and containerized components supporting early deployable capabilities for next generation C2 architectures

Perform and lead integration, testing and performance analysis in lab environments

Document designs, APIs, test results and key engineering decisions

Drive agile planning, technical reviews and cross team design discussions

Maintain Secret Clearance. U.S. Citizenship status is required as this position will require the ability to access US-only systems.

Work onsite at San Diego, CA facility

Qualifications You Must Have:

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 10 years of relevant experience.

Experience in Software Development and Deployment, including analysis, design, integration, automated testing, continuous integration and deployment.

Experience with Java, containerized deployments (including Docker and Kubernetes), DevSecOps and Gitlab.

Experience working in a team-focused development environment, such as Agile/SCRUM.

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.

Qualifications We Prefer:

Strong background in distributed systems, real‑time or near‑real‑time processing, or autonomous system software

Experience with Java, Python, GoLang, and/or container‑oriented development (Docker, Kubernetes, etc.)

Understanding of networking, messaging frameworks, or middleware used in distributed command‑and‑control systems.

Exposure to model‑based engineering, simulation environments, or digital‑engineering tools.

Experience working on IRAD, early R&D prototypes, or technology maturation efforts.

Experience working on Combat Systems solutions.

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.

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 , 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

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 118,300 USD - 224,900 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.