Senior Software Engineer - Embedded (Onsite)

RTX (Raytheon); McKinney (TX); On-site; USD 120,000 - 170,000; Full time

Job summary

RTX is seeking a Senior Software Engineer - Embedded in McKinney, TX to design, develop and test real-time software for AESA radar and EO/IR systems. You will work in a cross-functional APS Engineering team onsite, contributing to software across Linux/VxWorks RTOS, C/C++, and scripting environments. DoD Secret clearance required after start; U.S.

citizenship is mandatory. The role involves collaboration with Systems Engineers and hands-on work with hardware-in-the-loop setups, test benches and

Qualifications

• Requires STEM degree and a minimum of 5 years of relevant engineering experience with software.
• Experience developing software for real-time systems (Linux, VxWorks or RTOS).
• Proficiency in object-oriented design and C/C++ languages; familiarity with scripting languages.

Responsibilities

• Develop and implement software for real-time applications in a multi-disciplinary team.
• Collaborate with Systems Engineers to design solutions tailored to end-user needs.
• Contribute to software lifecycle activities from concept through test and maintenance.

Skills

Linux

VxWorks

C++

C

C#

Java

Python

Shell

RTOS

Git

GitLab

Education

STEM degree

Tools

Git

GitLab

Scripting (Shell/Python)

Job description

Date Posted: 2026-09-09

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

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.

The Advanced Product and Solutions organization at RTX provides the joint warfighter with actionable information from an unblinking eye across the battlespace. By joining the APS Engineering team you'll have the opportunity to design, develop and test product capabilities for Active Electronically Scanned Array (AESA) radars, integrated sensor suites, precision targeting, multispectral EO/IR targeting systems, Pilot Situational Awareness, Special mission aircraft and Strategic and tactical ISR Systems.

But more than anything, we are innovators, creators and strategists drawing inspiration from each other every day. We collaborate, iterate, and execute with an eye toward the company mission and personal career growth.

We have an exciting opportunity for a Senior Software Engineer - Embedded to join our Electro-Optical & Infrared (EO/IR) Solutions Engineering Team in McKinney, TX, which is part of our Advanced Products & Solutions group.

What You Will Do

This position is for a Senior Software Engineer who has educational and professional experience in the development and implementation of software for real-time applications.

Deliverables include but not limited to:

• Supports all aspects of a software development life cycle as members of a multi-disciplined team. This would include supporting new and legacy military and commercial programs from concept and requirements, to design, development, integration, test, and potentially subsequent maintenance tasking.
• Uses and provides creative solutions to complex technical system and software integration problems.
• Works closely with Systems Engineers to design ideal solutions with the end user and operational needs in mind.

Onsite role in McKinney, Texas, with local residency or relocation required.

This position will require occasional business-related travel, up to 5-10%.

The ability to obtain and maintain a Secret with Special Access Program U.S. government issued security clearance after start is required. 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) and a minimum of 5 years of prior relevant engineering experience. An advanced degree in a related field may be substituted for an additional 2 years of experience.

Software development experience, including:

• Developing on Linux, VxWorks, or other Real Time Operating Systems.
• Applying object-oriented programming and C++ design paradigms.
• Coding in C, C#, Java or closely related software languages.
• Developing, testing, and integrating real-time software applications written in C++.
• Experience in computer scripting language such as Shell/Perl/Python.
• Experience working with multi-discipline team(s).

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

• 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 with product development utilizing the Scrum techniques of the Agile software development process.
• Experience with DevSecOps pipeline implementation and utilization, including Static Code Analysis, Automated Build, and Automated Test techniques using continuous integration/continuous delivery with Test-Driven Development approach.
• Hands-on experience with Git for version control and GitLab for repository management.
• Ability to