Senior Software Security Engineer

RTX

McKinney (TX)

On-site

USD 87,000 - 165,000

Full time

3 days ago

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Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

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

Holidays

Job summary

RTX is seeking a Senior Software Security Engineer to join our Software Product Assurance team in McKinney, TX. The role focuses on delivering security‑driven embedded software for real‑time sensor systems, using C and C++ across diverse hardware platforms.

The ideal candidate has at least 5 years of experience in embedded software security, strong knowledge of embedded OSes like VxWorks or Embedded Linux, and holds an active DoD Secret clearance.

Qualifications

Typically requires a Bachelor's in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 5 years of relevant software experience.
Experience with C / C++
Experience with Embedded Processors
Experience with embedded OS like VxWorks, Embedded Linux, or similar
Embedded Software Security experience
Active and transferable U.S. government issued Secret security clearance is required.

Responsibilities

Develop and implement software security principles for embedded real‑time sensor software.
Develop software applications using C and C++ on multiple computing platforms.
Ensure Software Product Assurance processes are followed across programs.
Collaborate with cross-functional teams to support TDMC based execution.
Review technical designs with customers and verify system maturity.

Skills

C / C++

Embedded processors

Embedded OS

Embedded software security

Security clearance

Education

Bachelor's degree in STEM

Tools

VxWorks

Embedded Linux

Petalinux/Yocto

Job description

Date Posted: 2026-10-30

Country: United States of America

Location: US-TX-MCKINNEY-513PW ~ 2501 W University Dr ~ PW 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.

We are currently seeking a Senior Software Security Engineer to join our Software Product Assurance team in El Segundo, CA

What You Will Do:

Our mission is to provide world class Security Software to be used in developing and supporting deployed sensor systems on various platforms.
Implement Software Security principles to embedded software design, development, integration, and testing of real-time sensor software.
Develop software applications using C and C++ languages on a variety of computing platforms
Ensure the SW Product Assurance processes are followed on our programs
Understand real-time software design and the performance implications associated with specific System Security implementations.
Work closely with cross functional Engineering teams to define and implement Test Driven Multidisciplinary Capability (TDMC) based execution development and deployment requirements.
Work in a common development environment to support and facilitate program ability to leverage specific capabilities.
Interface with customer community to review technical design and support verification of system maturity.

Qualifications You Must Have:

Typically requires a Bachelor's in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 5 years of relevant software experience
Experience with C / C++
Experience with Embedded Processors
Experience with embedded OS like VxWorks, Embedded Linux, or similar
Embedded Software Security experience
Active and transferable U.S. government issued Secret security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer:

Experience/knowledge of any of the following:
Designing, implementing, testing, or fielding real-time security-oriented solutions on Department of War (DoW) programs (embedded experience highly preferred)
Kernel or Device Driver development
Petalinux/Yocto operating systems
Agile/Scrum/Kanban frameworks and DevSecOps environments
Knowledge of modern computer architecture and hardware technologies including:
ARM Architecture
Interface protocols: PCIe, GPIO, I2C, SATA
Field Programmable Gate Arrays (FPGAs)
Application-Specific Integrated Circuits (ASICs)
Using software configuration management and bug tracking tools
Experience with validation and verification of software applications

The salary range for this role is 86,800 USD - 165,200 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.