Software Engineer I

Date Posted:

2026-06-09

Country:

United States of America

Location:

US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01

Position Role Type:

Onsite

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

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

Security Clearance Type:

DoD Clearance: Secret

Security Clearance Status:

Active and existing security clearance required after day 1

What You Will Do:

• Design, develop, and test software based on software trouble reports, collaborative environment, delivering builds
• Demonstrate critical thinking skills, the ability to thrive in small, empowered teams, and an intense desire to directly enable our customer’s success
• 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
• Work collaboratively with multiple engineering disciplines to analyze, implement, and test system modification requests to the existing system baseline

Qualifications You Must Have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and less than 2 years of prior relevant experience.

• Experience in developing, testing, and integrating real-time software applications written in C++ or C, or similar.

• Experience in computer scripting languages such as Shell/Perl/Python.

• 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:

• Additional experience in coding using C, C#, Java or closely related software languages.
• Experience working in lab environments with physical hardware (e.g., test benches, simulators).
• Ability to quickly understand and navigate complex systems and established code bases.
• Experience in Object Oriented and scripting languages
• Clearly communicate plans, status, and issues to teammates and program leadership
• Ability to work in a fast paced, dynamic environment with time-critical requirementsExperience contributing to a team environment for the purpose of developing creative solutions to difficult technical problems
• Experience with developing, testing, and integrating software using C/C##/Java or modern software development language

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 total rewards package that goes above and beyond with compensation; healthcare, wellness, retirement, and work/life benefits; career development and recognition programs.

• Relocation Eligible – Relocation assistance available

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.

• 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://ww