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RTX
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March 25, 2026
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Software Security Engineer II - S3E

US-AZ-TUCSON-801 ~ 1151 E Hermans Rd ~ BLDG 801 (External Site)
Full-time
Onsite
$69K/yr - $131K/yr
Entry, Mid Level
RTX is the world largest aerospace and defense company, and they are seeking a Software Security Engineer in Tucson, AZ. The role involves providing world-class Security Software for deployed missile systems, focusing on software design, development, and implementation of missile software applications.
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Responsibilities

  • 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

Qualification

Required

  • 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

Preferred

  • 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

Benefits

  • 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
  • Holidays
RTX is comprised of three market-leading businesses – Collins Aerospace, Pratt & Whitney and Raytheon – working as one to answer the biggest questions and solve the hardest problems in aerospace and defense.
Glassdoor
3.8
Founded in 1922
Arlington, Virginia, USA
10001+ employees
http://www.raytheon.com
RTX is comprised of three market-leading businesses – Collins Aerospace, Pratt & Whitney and Raytheon – working as one to answer the biggest questions and solve the hardest problems in aerospace and defense.
Glassdoor
3.8
Founded in 1922
Arlington, Virginia, USA
10001+ employees
http://www.raytheon.com