Software Engineer I (Onsite)

Date Posted: 2026-08-14

Country:

United States of America

Location:

US-CA-FULLERTON-676 ~ 1801 Hughes Dr ~ BLDG 676

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.

Security Clearance Type:

None/Not Required

Security Clearance Status:

Not Required

This requisition is for an RTX intern converting to FT hire upon graduation.

Are you ready to explore the world of aerospace and defense? Do you want to learn from and collaborate with some of the greatest minds in the industry? At RTX, our internships, co-ops and full-time careers provide an exceptional foundation to work on complex problems, advance your skills and create a safer, more connected world. Discover opportunities to make a difference at RTX.

What You Will Do

• Support formal and informal software development, integration, and test activities.
• Support software qualification testing to meet DO-178B standards for requirements-based verification and robustness testing.
• Update documentation related to test, verification, and design activities.
• Work within software team and interface with other disciplines as needed to meet program milestones.
• Support process audits and peer reviews.

What You Will Learn

• You will gain hands on experience in software integration, testing, and compliance with industry standards like DO-178B. Develop documentation skills vital for comprehensive software engineering knowledge.
• You will engage in cutting edge SBAS development with elite Software Engineers, broadening your expertise in aerospace technology and interdisciplinary collaboration.
• You will take flight in the design, development, and verification of operational software, laying a solid foundation for advancement in aerospace. Additionally, you’ll support audits and reviews to foster a culture of excellence and continuous improvement.

Qualifications You Must Have

• Bachelor’s degree in Software Engineering, Computer Engineering, Computer Science, or related Science, Technology, Engineering or Mathematics (STEM) major obtained by start date.

Qualifications We Prefer

• Experience with C or similar programming languages, structured programming, and software development lifecycle.
• Experience with Unix/Linux-based development environment.
• Experience in Windows and Microsoft products and tools.
• Experience in software testing and source code debugging.
• Familiar with source code configuration management systems such as ClearCase/ClearQuest, Jira, or BitBucket/Git.

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, if eligible

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 essential to the development of our products.

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 62,900 USD - 119,700 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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