Principal Software Security Engineer - S3E
Listed on 2026-04-17
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Engineering
Cybersecurity, Embedded Software Engineer
Location
US-AZ-TUCSON-801 ~ 1151 E Hermans Rd ~ BLDG 801 (External Site)
Date PostedCountryUnited States of America
Position Role TypeOnsite
U.S. Citizen, U.S. Person, or Immigration Status RequirementsActive 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 TypeDoD Clearance:
Secret
Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date
Salary Range107,500 USD - 204,500 USD
What You Will DoOur mission is to provide world class Security Software to be used in deployed missile systems.
- This position requires understanding of real-time software design and the performance implications associated with specific System Security implementations.
- Involve 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.
- Able to understand how position's efforts affect the “big picture” of the missile system and be able to develop or review detail solutions at the source code level.
- 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.
- Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM) AND a minimum of 8 years of relevant software experience
- Experience with C / C++
- Experience with Xilinx Ulta Scale+ MPSoC, Versal, or similar Embedded Processors
- Experience with embedded OS like VxWorks, Embedded Linux, or similar
- Embedded Software Security experience
- The ability to obtain and maintain an Interim Secret Level U.S. security clearance is required prior to start date with the ability to obtain program access after start. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
- 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 designing, implementing, testing, or fielding real-time security-oriented solutions on Department of Defense (DoD) programs (embedded experience highly preferred)
- Experience using security-relevant tools and devices for security auditing, network security, host/server security, communication security, or policy management.
- Experience in Agile and Dev Sec Ops environments
- Experience in an Agile/Scrum/Kanban frameworks and development environments
- Experience using software configuration management and bug tracking tools
- Experience with Python / Perl
- Knowledge of modern computer architectures and hardware technologies including:
- PCIe, GPIO, I2C, SATA
- Field Programmable Gate Arrays (FPGAs)
- Application-Specific Integrated Circuits (ASICs)
- Whether you’re just starting out on your career journey or are an experienced professional, we offer a robust total rewards package with compensation; healthcare, wellness, retirement and work/life benefits; career development and recognition programs.
- Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance and child/adult backup care.
- “Tucson is Awesome”:
- “Winter in Tucson”:
RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.
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