2026 Raytheon Full Time-Software Engineer I – EOIR Advanced Products and Solutions (Onsite)

globalhr; McKinney (TX); On-site; USD 57,000 - 109,000; Full time

Benefits offered by this job

Relocation Offered Based on Eligible

Job summary

RTX in McKinney, TX is seeking a Software Engineer I to join the Advanced Products and Solutions (APS) unit. You will contribute to design, development, testing, and integration of software for EO/IR programs in real-time systems for aerospace and defense applications.

This entry-level role is ideal for those eager to grow in software engineering. A STEM degree and experience in C++ and Linux are required, along with the ability to work in a collaborative team and obtain a Secret clearance.

Qualifications

• Typically requires a degree in STEM.
• Experience in C++ programming and OO design.
• Experience with Linux OS, including shell scripting.
• Ability to work in a collaborative, team-oriented environment.

Responsibilities

• Design, develop, and debug software in C++ for real-time systems running on Linux.
• Collaborate with cross-functional teams to ensure seamless integration of software.
• Implement and optimize software algorithms to meet performance, reliability, and scalability requirements of mission-critical applications.
• Perform integration testing hardware, ensuring seamless operation and compliance with system requirements.
• Write and maintain software documentation, including design specifications, technical reports, and user manuals.
• Work onsite at McKinney, TX
• Support Formal Qualification Test events
• Conduct unit testing and software integration testing to verify functionality and compliance with system requirements.
• Troubleshoot and resolve software issues, ensuring timely delivery of high-quality solutions.
• Adhere to industry best practices, coding standards, and security guidelines specific to aerospace and defense applications.
• Participate in code reviews, providing constructive feedback to peers and ensuring adherence to program standards.
• Able to obtain and maintain a Secret U.S. security clearance. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Skills

C++ programming

Object-oriented design

Linux

Team collaboration

Education

STEM degree

Tools

Shell scripting

Job description

Date Posted

2026-09-14

Country

United States of America

Location

US-TX-MCKINNEY-513WC ~ 2501 W University Dr ~ WING C BLDG

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

Job Description

At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring 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. Our team solves tough, meaningful problems that create a safer, more secure world.

The Software organization develops software applications, including integration and test on missiles, launchers, radars, naval systems, fire control and other complex systems. Our precision software and firmware integrate operating systems, device drivers, networking, and control software to bring together sensor, guidance, and flight control processing features to complete the mission. The Software org is made up of several Centers located across the country, responsible for all aspects of the software development lifecycle. Our 4000+ software engineers design, develop, and build innovative solutions for our customers. Join our fast-paced agile teams on the leading edge of technology.

The Advanced Products and Solutions (APS) business unit focuses on developing state-of-the-art Electro-Optical/Infrared (EO/IR) technologies and systems for a variety of mission-critical applications. We are at the forefront of innovation, providing advanced solutions that enhance situational awareness and operational effectiveness.

We are seeking a highly motivated Software Engineer I with experience in C++ and Linux to join our team in the Advanced Products and Solutions (APS) business unit, supporting EO/IR programs. In this role, you will contribute to the design, development, testing, and integration of software solutions that power next-generation EO/IR systems for critical aerospace and defense applications. This is an entry-level role ideal for those passionate about software engineering and eager to grow their skills in a challenging and rewarding environment

This position is an onsite role at our McKinney, TX facility.

What you will do

• Deliverables include but not limited to:

  • Design, develop, and debug software in C++ for real-time systems running on Linux platforms.

  • Collaborate with cross-functional teams, including systems engineering, electrical engineering and test, to ensure seamless integration of software.

  • Implement and optimize software algorithms to meet performance, reliability, and scalability requirements of mission-critical applications.

  • Perform integration testing hardware, ensuring seamless operation and compliance with system requirements.

• Write and maintain software documentation, including design specifications, technical reports, and user manuals.

• Work onsite at McKinney, TX

• Support Formal Qualification Test events

• Conduct unit testing and software integration testing to verify functionality and compliance with system requirements.

• Troubleshoot and resolve software issues, ensuring timely delivery of high-quality solutions.

• Adhere to industry best practices, coding standards, and security guidelines specific to aerospace and defense applications.

• Participate in code reviews, providing constructive feedback to peers and ensuring adherence to program standards.

• Able to obtain and maintain a Secret U.S. security clearance. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications You Must Have

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM).

• Experience in C++ programming and familiarity with object-oriented design principles.

• Experience working with Linux operating systems, including shell scripting and command-line tools.

• Experience working effectively in a collaborative, team-oriented environment.

Qualifications We Prefer

• Experience with hardware-software integration and debugging.

• Understanding of pipeline implementation and utilization, including Static Code Analysis, Automated Build, and Automated Test techniques using continuous integration/continuous delivery with Test-Driven Development approach.

• Ability to manage multiple priorities.

• Effective verbal and written communication skills.

• Ability to fly on flight test aircraft in support of system platform testing.

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 Offered Based on Eligibility

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attendselect 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 57,200 USD - 108,800 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