Embedded Software Security Engineer II - S3E

RTX (Raytheon); Tucson (AZ); On-site; USD 90,000 - 130,000; Full time

Job summary

RTX, based in Tucson, AZ, is seeking a Software Security Engineer to design, develop, integrate, and test real-time missile software in C/C++. The role requires applying system security principles and collaborating with the Systems Security Engineering team to meet DoD program requirements.

The candidate should have a Bachelor's in STEM and at least 2 years of relevant experience, with proficiency in C/C++ and agile methods. Security clearance (interim) and U.S.

Qualifications

• Bachelor's degree in Science, Technology, Engineering, or Mathematics (STEM) required.
• Minimum 2 years of relevant software experience.
• Experience with C/C++ and Agile development.

Responsibilities

• Develop and test real-time missile software in C/C++.
• Apply System Security principles to missile software.
• Interface with Systems Security Engineering and review requirements.
• Develop software across multiple computing platforms.
• Collaborate with customer and verify system maturity.

Skills

C / C++

Python

Perl

Education

Bachelor's degree in STEM

Job description

Date Posted: 2026-10-04

Country: United States of America

Location: US-AZ-TUCSON-801 ~ 1151 E Hermans Rd ~ BLDG 801 (External Site)

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: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

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.

Software Security Sensors and Effectors (S3E) Department is looking to hire a Software Security Engineer in Tucson, AZ.

Raytheon Tucson, AZ Location

Our Culture | RTX Careers

What You Will Do:

• Our mission is to provide world class Security Software to be used in deployed missile systems.
• As a System Security software engineer, you will be involved with application and embedded software design, development, integration, and testing of real-time missile software.
• Apply System Security principles to the design and implementation of Missile software applications.
• Develop software applications using C and C++ languages on a variety of computing platforms
• Understand real-time software design and the performance implications associated with specific System Security implementations.
• Work closely with the Systems Security Engineering team to define and implement 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 2 years of relevant software experience.
• Experience with C / C++.
• Experience working in Agile or similar development environment
• Experience with scripting languages like Python, Perl or similar
• The ability to obtain and maintain an interim Secret U.S. security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer:

• Experience with validation and verification of software applications
• Experience/Knowledge of any of the following:
• Linux/Unix environment
• Interfacing with FPGAs
• Interfacing with low-level memory drivers
• Inter-processor communication
• ARM Architecture
• Secure boot concepts
• Cryptographic Algorithms
• Experience with Xilinx UltaScale+ MPSoC, Versal, or similar Embedded Processors
• VxWorks, Embedded Linux, or similar embedded Operating System experience
• Embedded Software Security experience
• Experience designing, implementing, testing, or fielding real-time security-oriented solutions on Department of Defense (DoD) programs (embedded experience highly preferred)
• Experience in Kanban frameworks
• Experience using software configuration management and bug tracking tools

Location Information:

This position requires a 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

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.

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