Principal Software Product Engineer

Date Posted:

2026-02-25

Country:

United States of America

Location:

US-CA-FULLERTON-675 ~ 1801 Hughes Dr ~ BLDG 675

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

What You Will Do:

As a Lead Product Engineer, lead deployment teams for IRAD and Distributed Data and Digital Delivery (D4) projects, translating research concepts into innovative defense solutions.

• Collaborate with Principal Investigators, Chief Engineers, and National/International customers to align technical roadmaps with business models.
• Drive flawless technical and schedule performance by establishing key process metrics and leveraging state-of-the-art tools.
• Develop proposals, white papers, and Statements of Work (SOW) to support customer negotiations and Minimum Viable Products (MVPs).
• Manage project budgets up to $750K+, ensuring compliance with Earned Value Management Systems (EVMS) and developing Estimate at Completions (EACs).
• Execute project start-ups, including the development of Integrated Master Plans/Schedules (IMP/IMS) and performance baselines.
• Support staffing demands and personnel development for the broader engineering organization.
• Travel CONUS and OCONUS: Up to 25% per year

Qualifications You Must Have:

• Typically requires a Bachelor’s degree in Science, Technology, Engineering or Mathematics AND eight (8) years of relevant engineering experience.
• Experience leading teams (5-10 employees) through the complete software/product development lifecycle.
• Experience collaborating with Principal Investigators or similar, to transition technology from research (IRAD) to production.
• Experience in roles managing project budgets and metrics.
• Experience in developing software using OOAD.
• Able to obtain and maintain a U.S. government issued security clearance as and when required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer:

• Prior experience supporting Open Source and FOSS integration within D4 data pipelines.
• Development capabilities in alignment with modern programming languages.
• Experience in managing project budgets and ensuring compliance with EVMS, EACs, and Raytheon internal policies.
• Experience acting as a Scrum Master or holding a Scrum Master certification.
• Knowledge of Long Term Roadmaps for technology development.
• Ability to support and manage projects ranging from small-scale to large-scale investment.
• Experience engaging directly with National and International customers.
• Strong technical writing skills for white papers and customer proposals.
• Willingness to travel domestically or internationally as required.

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.

• A robust total rewards package with compensation; healthcare, wellness, retirement and work/life benefits; career development and recognition programs. Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, and educational assistance.

Learn More & Apply Now!

Please consider the following role type definition as you apply for this role.

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.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

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