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RTX
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October 29, 2026
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Software Security Engineer I

El Segundo, CA
Full-time
Onsite
$63K/yr - $120K/yr
Entry Level
RTX is hiring a Software Security Engineer I for its Software Product Assurance team. The role develops and integrates security software for real-time embedded sensor systems, applies software security principles, and supports testing and product assurance processes.
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Responsibilities

  • 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 for embedded software design, development, integration, and testing of real-time sensor software
  • Develop software applications using multiple programming 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

Qualification

Required

  • Typically requires a Bachelor's in Science, Technology, Engineering, or Mathematics (STEM)
  • Experience with C / C++ and experience with scripting languages like Python, Perl, or similar
  • Experience working in Agile/Scrum/Kanban or similar development environment as part of a software team
  • 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

Preferred

  • Education or on-the-job experience in: Real-Time Operating Systems (RTOS); Kernel or Device Driver development; Software Integration; or similar
  • Validation and verification of software applications
  • Full software development lifecycle for real-time embedded security-oriented products
  • Experience/Knowledge of several of the following:
  • Linux/Unix environment
  • Interfacing with FPGAs and ASICs
  • Interfacing with low-level memory drivers
  • Inter-processor communication
  • Interface protocols, such as PCIe, GPIO, I2C, and SATA
  • ARM Architecture
  • Secure boot concepts
  • Cryptographic Algorithms
  • Containerization and software hardening techniques
  • Xilinx UltaScale+ MPSoC, Versal, or similar Embedded Processors
  • VxWorks, Embedded Linux, or similar embedded Operating System experience
  • Embedded Software Security
  • Use of software configuration management and bug tracking tools
  • DevSecOps tools, Model-based Engineering, and Test Driven Development

Benefits

  • Hired applicants may be eligible for 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, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.
  • 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. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.
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/