Principal Software Security Engineer - S3E
Prattwhitney
What You Will Do Our mission is to develop, integrate, test, and support world‑class security software for deployed missile systems. Participate in the design, development, integration, and testing of real‑time missile software. Apply system security principles to missile software applications. Develop software applications using C and C++ on multiple computing platforms. Understand real‑time software design and performance implications of security implementations. Evaluate how your work affects the overall missile system and provide source‑level solutions. Collaborate with Systems Security Engineering team to define and implement requirements. Support the common development environment to leverage program capabilities. Interface with customer communities to review technical design and support verification. Required Qualifications Bachelor’s degree in STEM field. Minimum 8 years of relevant software experience. Experience with C and C++. Experience with Xilinx UltraScale+ MPSoC, Versal, or similar embedded processors. Experience with embedded OS such as VxWorks, Embedded Linux, or similar. Embedded software security experience. U.S. citizenship required. Must obtain and maintain an Interim Secret Level U.S. security clearance before start date. Preferred Qualifications Validation and verification of software applications. Knowledge of Linux/Unix environments. Interfacing with FPGAs and low‑level memory drivers. Inter‑processor communication. ARM architecture. Secure boot concepts. Cryptographic algorithms. Design, implementation, testing, or fielding of real‑time security‑oriented solutions on DoD programs (embedded experience highly preferred). Experience with security‑relevant tools for auditing, network security, host/server security, communication security, or policy management. Experience in Agile/DevSecOps environments. Experience with software configuration management and bug tracking tools. Experience with Python or Perl. Knowledge of modern computer architectures and hardware technologies: PCIe, GPIO, I2C, SATA, FPGAs, ASICs. Security Clearance U.S. citizenship required. Candidate must obtain and maintain an Interim Secret Level U.S. security clearance prior to start date. Benefits Healthcare, dental, vision, and life insurance. Short‑term and long‑term disability plans. 401(k) match and flexible spending accounts. Flexible work schedules and telework options. Employee assistance program. Paid time off, holidays, and parental leave (including paternal). Career development and recognition programs, educational assistance, and child/adult backup care. Equal Opportunity Employer We are 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, veteran status, or any other applicable state or federal protected class. #J-18808-Ljbffr Prattwhitney
$107.5k - $204.5k
...transferable U.S. government issued security clearance is required prior... ...of experience and renowned engineering expertise to meet the needs... ...aerospace and defense. Software Security Sensors and... ...Department is looking to hire a Principal Software Security Engineer in...SuggestedTemporary workWork experience placementInterim roleWork at officeRemote workFlexible hours$107.5k - $204.5k
...and transferable U.S. government issued security clearance is required prior to start date... ...100 years of experience and renowned engineering expertise to meet the needs of today’s mission... ...and defense. Job Summary : The Software Security Sensors and Effectors...SuggestedTemporary workWork experience placementInterim roleWork at officeRemote workFlexible hours$107.5k - $204.5k
...Eligibility: U.S. citizenship required. Security clearance: DoD Secret (intermediate clearance... ...before start date). Job Summary The Software Security Sensors and Effectors... ...Bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM) and 8 years of related...SuggestedInterim roleFlexible hours- Job Details Principal Software Engineer with ACTIVE Secret Security Clearance - Tucson, AZ Posted: 6/30/2026 Job ID: 16261 Job Category: Engineering Position Type: Contract to Hire Rate Range: $95/hr - $120/hr W2 (no health benefits / no paid PTO - a worked hour is...SuggestedContract workRelocation
$107.5k - $204.5k
...transferable U.S. government issued security clearance is required prior... ...of experience and renowned engineering expertise to meet the needs... ...aerospace and defense. The Software organization develops... ...delivers superior solutions. Our Principal Embedded Real-Time Software...SuggestedTemporary workWork experience placementWork at officeRemote workRelocationFlexible hours$107.5k - $204.5k
Principal Embedded Real-Time Software Developer/Integrator Position posted on 2026-05-14. Onsite location: Tucson, AZ. Security clearance: Active Secret U.S. government issued clearance required... .... Experience leading engineering teams in delivering systems involving...Temporary workRelocationFlexible hours$132.4k - $251.6k
Senior Principal Embedded Real-Time Software Developer/Integrator Location : Tucson, AZ (Onsite) Security Clearance : Secret-level U.S. government issued clearance required prior... ...the Effectors Center of our Software Engineering Directorate. Responsibilities include architecting...Temporary workInterim roleRelocation packageFlexible hours$107.5k - $204.5k
Job Summary Principal Embedded Real‑Time Software Developer/Integrator - Effectors Center of the Software organization... ...Obtain program access and maintain security clearance requirements.... ...device drivers, and leadership of engineering teams. Benefits Competitive salary...Flexible hours$132.4k - $251.6k
...Position: Software/Test Equipment Development Engineer – Tucson, AZ Role: Onsite What You Will Do Guide multidisciplinary teams in the development of test... ...to obtain and maintain a U.S. Government Secret security clearance. Preferred Qualifications Knowledge of computer...Temporary workFlexible hours$86.8k - $165.2k
Senior Software Security Engineer Location: Tucson, AZ (On site) What You Will Do Provide world‑class security software for newly deployed missile systems. Design, develop, integrate, and test real‑time missile software. Apply system security principles to software design...Interim roleFlexible hours$86.8k - $165.2k
...and transferable U.S. government issued security clearance is required prior to start date... ...100 years of experience and renowned engineering expertise to meet the needs of today’s mission... ...for our entire missile portfolio. The software team within TEE is responsible for...Temporary workWork experience placementInterim roleWork at officeRemote workFlexible hours$86.8k - $165.2k
Prattwhitney in Tucson, AZ is seeking a Senior Software Security Engineer to provide world-class security software for newly deployed missile systems. The role involves designing, developing, integrating, and testing real-time missile software. Candidates should have a...Flexible hours$68.9k - $131.1k
Software Security Engineer - Tucson, AZ Location: Tucson, Arizona. Onsite work required. Salary range USD 68,900 - 131,100. Security clearance: U.S. citizenship required, interim Secret clearance prior to start date. DoD Clearance: Secret. What You Will Do Design, develop...Interim roleFlexible hours- Prattwhitney is seeking a Software Security Engineer in Tucson, AZ, to design and develop real-time missile software applications. Candidates must have a Bachelor’s degree in STEM and at least 2 years of relevant experience, especially with C/C++. U.S. citizenship and...
$89k - $143.75k
...Function: R&D Product Development Job Sub Function: R&D Software/Systems Engineering Job Category: Scientific/Technology All Job... ...a cyber-lens. Performing periodic risk assessment of security vulnerabilities in software for the product by identifying...Full timeTemporary workWork at officeLocal areaRemote workNight shift- ...missions to combat climate change, national security, and exciting new technology... ...thrive in space, like solar panels, flight software, star trackers, optical systems,... ...ambitious space missions. SENIOR AI&T ENGINEER II/PRINCIPAL - MECHANICAL Rocket Lab's Optical Systems...Permanent employmentLocal area
- Prattwhitney in Tucson, Arizona is looking for a skilled software engineer to develop and secure missile software. Ideal candidates should have a Bachelor’s degree in a STEM field and a minimum of 8 years of professional experience. Responsibilities include designing, developing...Interim roleFlexible hours
$102.17k
...country. Job Description Join the Trinnex Security Team as a Senior Cyber Security Analyst,... ...and DevSecOps to protect critical software systems that support water utilities and... ...evolving threats. You will work closely with engineering and development teams to safeguard...H1b- ...Cooperidge Consulting Firm is seeking a Senior Software Developer for an elite National Security R&D center in Tucson, AZ. This is a senior-tier leadership... ...environment alongside mathematicians and electrical engineers. You will be responsible for inventing and...
- ...Intelligence Communities in support of national security. Rincon Research Corporation (RRC)... ...with likeminded motivated electrical engineers, mathematicians, and computer scientists... ..., implementing them in efficient software, testing with real-world data, and deploying...Temporary workWork at officeImmediate startRemote workFlexible hours
- ...federal partner supporting mission‑critical programs across national security, defense, and public service delivery. Our work focuses on... ...that matter at a national scale. The Junior Security Engineer supports 24x7 enterprise cybersecurity operations by monitoring...Minimum wageFull timeContract workTemporary workWork experience placementRemote work
$85k - $120k
...The parent company, Enterprise Security, Inc, was founded in 2000 and prides itself as being... ...Commercial Doors, Cybersecurity, Custom Software Development, Sound Masking, Low Voltage,... ...are seeking a Physical Security Systems Engineer for the greater Southern California and...Full timeLocal areaRelocation package$132.4k - $251.6k
...and transferable U.S. government issued security clearance is required prior to start date... ...100 years of experience and renowned engineering expertise to meet the needs of today's mission... ...in multiple domains (Hardware and Software), and materializing conceptual designs that...Temporary workWork experience placementWork at officeRemote workRelocationFlexible hours$79.03k - $120.32k
...areas of cybersecurity. Evaluate the effectiveness of information security solutions and processes in place, keeping in mind the state of... ...and Control Firewall Management and Administration Hardware/software Security Testing and Evaluation Intrusion Detection/Prevention...Full timeWork at officeLocal area- ...reputation with the clients. Currently, we are looking for entry-level software programmers, IT enthusiasts, Python/Java developers, data... ...to apply. Who Should Apply: Recent computer science/engineering/mathematics/statistics or science graduates looking to make their...Remote work
$68.9k - $131.1k
...and transferable U.S. government issued security clearance is required prior to start date... ...to grow with us! We're expanding our engineering organization dramatically to meet exciting... ...of aerospace and defense. At Raytheon's Software Engineering Directorate (SWE) Effectors...Temporary workWork experience placementInterim roleWork at officeRemote workRelocationFlexible hours$105k
...A leading smart home security provider in Tucson is looking for a Smart Home Consultant to guide residential customers in securing their homes. In this role, you will deliver consultations, install security systems, and educate customers on their smart home products....$86.8k - $165.2k
...and transferable U.S. government issued security clearance is required prior to start date... ...to grow with us! We're expanding our engineering organization dramatically to meet exciting... ...aerospace and defense. Our Senior Embedded Software Engineer is a technical position that...Temporary workWork experience placementWork at officeRemote workRelocationFlexible hours- ..., we provide deep expertise in Advanced Engineering; Digital Transformation; Electromagnetic... ...today and into the future. Junior Embedded Software Engineer Participates in software... ...supervision of senior engineers or management Security Clearance & Citizenship Must be able to...Work at officeLocal area
$68.9k - $131.1k
...and transferable U.S. government issued security clearance is required prior to start date... ...100 years of experience and renowned engineering expertise to meet the needs of today’s mission... ...tools, and integrating state of the art software solutions with the most advanced...Temporary workWork experience placementInternshipWork at officeRemote workRelocationFlexible hours
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