Software Engineer I (Onsite)

Date Posted: 2026-08-04 | Location: Fullerton, CA (Onsite) | U.S. citizenship required to obtain and maintain a Secret DoD security clearance; active clearance required from day one.

About the Role

Collins Aerospace, a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry, is seeking a qualified Software Engineer to support the Joint Precision Approach and Landing System (JPALS) program. This early-career position focuses on developing solutions for GPS Navigation Systems in a highly technical, agile environment. You will collaborate with cross-functional teams, develop C code in a multithreaded environment and/or Java programming, and support integration and test activities. The role offers opportunities to gain technical experience, mentorship, and exposure to influential individuals within Mission Systems.

Responsibilities

• Work on multiple tasks in support of software development within an agile environment.
• Develop C code in a multithreaded environment and/or Java programming.
• Improve code quality through code reviews and adherence to good software practices.
• Support integration and verification within an automated test framework.
• Collaborate with subject matter experts and cross-functional teams to deliver unified solutions.
• Perform data analysis and problem-solving, including anomaly investigation.
• Eventually provide guidance, coaching, and training to other employees within your job area.

Qualifications

You Must Have:

• Bachelor’s degree in Science, Technology, Engineering, or Mathematics (STEM), or an Advanced Degree in a related field.
• Understanding of basic software development principles, including configuration control, collaborative development, and formal processes.
• Experience in C software and/or Java.
• Proficient written and oral communication skills.
• Experience working well in teams and multitasking.
• Demonstrable computer skills, including proficiency in Microsoft Office Suite and SharePoint.
• Ability to obtain and maintain a Secret U.S. government-issued security clearance (U.S. citizenship required).

We Prefer:

• Experience with real-time multithreading, memory management, and performance optimization.
• Experience in software collaboration environments and secure coding practices.
• Experience with hardware-in-the-loop testing.
• Experience with Simulink Test, requirements traceability, scripting, VxWorks, or VectorCAST (not required but desired).
• Experience with development of solutions for GPS Navigation Systems.
• Experience with Hardware and Software Integration, Validation & Verification Testing, and Qualification Testing.

Benefits

• Flexible work weeks: 9/80 or 5/40 schedules, with core hours and modified time options.
• Medical, dental, and vision insurance.
• Three weeks of vacation for newly hired employees.
• Generous 401(k) plan with employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option.
• Tuition reimbursement program and Student Loan Repayment Program.
• Life insurance and disability coverage, with optional additional coverages (e.g., pet insurance, home/auto insurance, critical illness insurance).
• Birth, adoption, and parental leave benefits.
• Ovia Health (fertility and family planning), Adoption Assistance, and Autism Benefit.
• Employee Assistance Plan, including up to 10 free counseling sessions.
• Wellness rewards program (Healthy You Incentives).
• Virtual doctor visits through Doctor on Demand and Teladoc Medical Experts (second opinion program).
• Bright Horizons child and elder care services.

Pay

The salary range for this role is $62,900 – $119,700 USD. The range is a good-faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including role, function, responsibilities, work experience, location, education/training, and key skills.

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 it is covered by a collective-bargaining agreement. Payments are not guaranteed and depend on individual, business unit, and company performance.