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RTX
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November 3, 2026
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Embedded Security Software Engineer I (Onsite)

Tewksbury, MA
Full-time
Onsite
$57K/yr - $109K/yr
Entry Level
RTX is hiring an Embedded Security Software Engineer to develop and deliver secure, real-time embedded software for defense systems. The role contributes across the software development lifecycle, including requirements, design, coding, integration, testing, and collaboration with multidisciplinary teams.
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Responsibilities

  • Work on complex technical problems and collaborate to provide innovative solutions. Requires investigation and troubleshooting skills to assess issues and develop resolutions
  • Work at all phases of the SW development lifecycle, including SW/HW integration, dependent on program phase
  • Assist in the derivation of system and software requirements, architectural modeling, and technical analysis
  • Design, code, unit test, integrate, and document real-time embedded software solutions with a focus on Secure Software Solution implementations
  • Participate actively in software peer reviews, code inspections, and technical decision-making alongside multidisciplinary teams, including program leadership and customers
  • Support program execution to ensure work products meet technical, cost, schedule, and quality baselines
  • Follow established software development processes and practices to maintain software product integrity

Qualification

Required

  • 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
  • Active and existing security clearance required after day 1
  • Bachelor's degree in Science, Technology, Engineering, or Mathematics (STEM) discipline from accredited institution. Degree must be obtained by start date
  • Experience developing, and testing or debugging software using C, C++, or similar object-oriented programming language
  • Experience with scripting languages such as Python, Perl or similar
  • Real time embedded software development experience
  • Strong hands-on troubleshooting and problem-solving experience
  • Experience developing software in a team-based development environment with strong teamwork and communication skills
  • Experience may be obtained through on-the-job experience, research, coursework, or projects
  • The ability to obtain a security clearance
  • Except in rare circumstances, only U.S. citizens are eligible for a security clearance

Preferred

  • Knowledge of Software Development Processes and experience participating in all phases of the Software Development Life Cycle (SDLC), including requirements, design, implementation, and testing
  • Experience working with Continuous Integration/Continuous Deployment (CI/CD) pipelines and automated build environments
  • Familiarity with Scrum/Agile, DevSecOps, Git/GitLab
  • Familiarity with Linux OS and Kernal development; Linux device drivers
  • Hands-on experience developing low-level device drivers or real-time embedded operating system (RTOS) applications
  • Hardware / software integration experience
  • Interfacing with FPGAs
  • Inter-processor communication
  • X-86 and ARM Architectures
  • Secure boot concepts
  • 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)

Benefits

  • Relocation eligible
  • Medical, dental, vision, life insurance, short-term disability, and long-term disability (eligible applicants; benefits depend on business unit and collective-bargaining coverage)
  • 401(k) match (eligible applicants; benefits depend on business unit and collective-bargaining coverage)
  • Flexible spending accounts (eligible applicants; benefits depend on business unit and collective-bargaining coverage)
  • Flexible work schedules (eligible applicants; benefits depend on business unit and collective-bargaining coverage)
  • Employee assistance program (eligible applicants; benefits depend on business unit and collective-bargaining coverage)
  • Employee Scholar Program (eligible applicants; benefits depend on business unit and collective-bargaining coverage)
  • Parental leave, paid time off, and holidays (eligible applicants; benefits depend on business unit and collective-bargaining coverage)
  • Annual short-term and/or long-term incentive compensation programs, depending on position level and collective-bargaining coverage; payments are not guaranteed and depend on individual, business unit, and/or company 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/