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RTX
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September 29, 2026
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Embedded Software Security Engineer I - S3E

Tucson, AZ
Full-time
Onsite
$57K/yr - $109K/yr
Entry Level
RTX is an aerospace and defense company developing solutions for complex mission and security challenges. The Embedded Software Security Engineer I will design, develop, integrate, and test real-time embedded software for missile systems, applying system security principles and C/C++ development in an Agile Scrum environment.
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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
  • Learn and 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

Qualification

Required

  • 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
  • Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date
  • Typically requires a Bachelor's degree in Science, Technology, Engineering, Mathematics or related field
  • Experience with C / C++

Preferred

  • Active/Existing Secret level U.S Security clearance
  • Linux/Unix environment
  • FPGAs
  • Inter-processor communication
  • ARM Architecture
  • Secure boot concepts
  • Cryptographic Algorithms or Concepts
  • Embedded Software and or Hardware
  • Embedded Operating Systems - VxWorks, Embedded Linux, or similar
  • Agile and DevSecOps environments
  • Configuration Management Tools - Git
  • Python or similar languages

Benefits

  • 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
  • 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.
RTX operates as an aerospace and defense company as it solves the hardest problems in aerospace and defense.
Glassdoor
3.7
Founded in 2020
Arlington, Virginia, USA
10001+ employees
http://rtx.com/
RTX operates as an aerospace and defense company as it solves the hardest problems in aerospace and defense.
Glassdoor
3.7
Founded in 2020
Arlington, Virginia, USA
10001+ employees
http://rtx.com/