Software Engineer II – Onsite (El Segundo)

globalhr; El Segundo (CA); On-site; USD 76,000 - 144,000; Full time

Job summary

RTX in El Segundo, CA is seeking a software engineer to design, develop, test, and document software in a fast-paced, agile environment. You will work in collaboration with multiple engineering disciplines to analyze and implement system modifications, ensuring customer success and high performance.

The role requires DoD Secret clearance on day one, with potential to pursue TS/SAP. Onsite work in US-CA-El Segundo is expected, with a deep focus on secure, rigorous software delivery.

Qualifications

• DoD Clearance: Secret active on day one, ability to get TS and SAP.
• Bachelor’s degree in STEM.
• 12+ months of relevant professional work experience.
• Experience with software development, test, and/or integration using C, C++, or Java, or similar high-level programming languages.
• Experience with scripting languages.
• Clearly communicate plans, status, and issues to teammates and program leadership.
• Ability to obtain and maintain a US security clearance.

Responsibilities

• Design, develop, and test software in an agile, collaborative environment.
• Demonstrate critical thinking and enable customer success.
• Troubleshoot, debug, and optimize existing code for performance.
• Write and maintain documentation including architecture and design specs.
• Participate in agile execution and continuous improvement.
• Collaborate with multiple engineering disciplines to analyze, implement, and test modifications.

Skills

C/C++/Java

Scripting languages

DoD Clearance: Secret

Communication

US citizenship eligibility

Education

Bachelor's degree in STEM

Tools

CI/CD pipelines

Agile development

Job description

Date Posted: 2026-09-22

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: 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 RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Raytheon brings 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. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

What You Will Do:

• Design, develop, and test software based on software trouble reports in an agile, 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
• Participate in agile execution and continuous improvement
• Work collaboratively with multiple engineering disciplines to analyze, implement, and test system modification requests to the existing system baseline

Qualifications You Must Have:

• DoD Clearance: Secret active on day one, ability to get TS and Special Access Programs (SAP)
• Typically requires a Bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM)
• This position requires 12 months or more of relevant professional work experience (excluding internships)
• Experience with software development, test, and/or integration using C, C++, or Java, or similar high-level programming languages
• Experience with Scripting languages
• Clearly communicate plans, status, and issues to teammates and program leadership
• Ensure the successful integration of software components into delivered products
• The ability to obtain and maintain a US security clearance. U.S. citizenship is required as only U.S. citizens are eligible for a security clearance

Learn more and Apply you would have this statement. - Clearance Information: This position requires 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

Qualifications We Prefer:

• Experience in Object Oriented and scripting languages
• Ability to work in a fast paced, dynamic environment with time-critical requirements
• Experience contributing to a team environment for the purpose of developing creative solutions to difficult technical problems
• Experience working in a Continuous Integration/Continuous Development environment; experience with CI/CD pipelines
• Experience with developing, testing, and integrating software using Java/C / C++ or modern software development language
• Experience with data structures, algorithms, and software design principles
• Software development lifecycle experience
• Well-developed communications skills and team collaboration skills
• Self-motivated
• Proven ability and desire to facilitate career growth and knowledge transfer
• Proven ability to provide technical solutions to complex issues
• Experience working in Agile environments such as scrum, scrum at scale, and DevSecOps
• Familiarity withMS Office or similar productivity applications

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.

Candidates will learn more about role type and current site status throughout the recruiting process. For onsite and hybrid roles, commuting to and from the assigned site is the employee’s personal responsibility.

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 75,800 USD - 144,200 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.