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Added 9 mins ago
Principal/Sr. Principal Digital-RF Hardware Subsystem I&T Engineer
Northrop Grumman
Baltimore, MD
The BaPs E&S organization at Northrop Grumman Missions Systems in Baltimore, Maryland is seeking experienced Principal/Sr. Principal Digital-RF Hardware Subsystem Integration and Test…
Added 9 mins ago
Mechanical Engineer/Principal Mechanical Engineer
Northrop Grumman
Baltimore, MD
We are looking for you to join our team as a Mechanical Engineer/Principal Mechanical Engineer based out of Baltimore, MD.
Added 21 mins ago
Principal Engineer I - System Design / Architecture Engineering
TMN Toyota Motor North America Company
Liberty, NC
…department’s objective of successfully implementing the OneTech systems required for the launch of the North Carolina Battery Plant and future plants. This role also supports the BEV…
Added 24 mins ago
Systems Engineer
DCS Corporation
Bedford, MA, MA
DCS is seeking experienced Systems Engineers to support a fast-paced U.S. Air Force program office. In this role, you will provide technical and engineering expertise across the system…
Added 27 mins ago
Principal Electrical Engineer
Crystal Group
Hiawatha, IA
…military connectors, and associated pin-outs. In addition, the Principal Electrical Engineer will be expected to perform research and development of new processes or services with minimal…
Added 40 mins ago
O
Senior Planning & Deployment Engineer
Oracle
Reston, VA
- $126,200 to $264,100 USD / year
Standing at the intersection of People, Process, Technology, and Data-Driven Analytics, the Principal Operational Excellence Program Manager will establish a dedicated Center of Excellence.…
Added 54 mins ago
Principal Physical Design Engineer
SiTime Corporation
AZ · CA
SiTime is seeking a seasoned Principal Physical Design Engineer to lead the physical implementation and signoff of complex digital blocks and subsystems. The successful candidate will take…
Added 54 mins ago
Principal Customer Engineer – Mobile, IoT & Consumer BU
SiTime Corporation
CA
We are seeking an experienced Principal Customer Engineer for the Mobile IoT and Consumer Business Unit to serve as the technical leader for SiTime's most strategic customer engagements.…
Added 55 mins ago
Principal System Security Engineer (SSE) – P4 (Onsite-Richardson, TX)
RTX
United States
Raytheon is seeking a well-qualified Principal System Security Engineer (SSE) – P4 to join the Cyber Security Engineering team for a dynamic, high-profile program located in Richardson, TX.…
Added 1 hour ago
Principal Software Engineer, Spacecraft Simulation
True Anomaly
Denver, CO · Long Beach, CA
…and the human and autonomous control of spacecraft and ground systems. True Anomaly is seeking a Principal Software Engineer, Spacecraft Simulation to define the long-term technical vision…
Added 1 hour ago
Facilities Engineer Senior Principal – Projects
BAE Systems
Westminster, CO · Broomfield, CO
Assist in the integration of new project management systems and processes to continue to improve the department.
Added 2 hours ago
Mechanical Engineer
Actalent
Fairfax, VA
Job Title: Mechanical Engineer (Level 2)Job DescriptionThe Mechanical Engineer (Level 2) supports the design, analysis, and documentation of mechanical hardware for advanced electronic…
Added 2 hours ago
Data Engineer - Enterprise Data Engineering & Analytics
MD Anderson Cancer Center
Houston, TX
The University of Texas MD Anderson Cancer Center is seeking a Data Engineer to join the Enterprise Data Engineering & Analytics Department. The Data Engineer plays a pivotal role in…
Added 2 hours ago
Principal Spacecraft GNC Engineer - Secret Clearance
Rocket Lab Corporation
Long Beach, CA
Based out of Rocket Lab’s global headquarters in Long Beach, CA, the Principal Spacecraft GNC Engineer - Secret Clearance is responsible for leading GNC and ADCS development for Rocket…
Added 2 hours ago
Principal Firmware Engineer – Digital ASIC
Blue Origin Personnel, LLC
Cupertino, CA
You will work closely with ASIC design, verification, hardware, communications systems, test, and manufacturing engineering teams to ensure successful firmware integration and delivery…
Added 2 hours ago
Principal Electrical Engineer
Leonardo DRS, Inc.
Melbourne, FL
The individual will be a senior member of the FPGA development team of DRS' Electro Optics and Imaging Systems (EOIS) division, and will interface with other team members representing a…
Added 3 hours ago
Principal Data Engineer
IDEXX Laboratories, Inc.
Westbrook, ME
IDEXX is seeking a Principal Data Engineer, who will build and maintain the data pipelines that power AI model training and algorithm development for IDEXX inVue Dx and other AI-powered…
Added 3 hours ago
WD
Chief Memory Chip Design Engineer & Architect
Western Digital
San Jose, CA
- $242,900 to $323,800 USD / year
We combine deep engineering expertise with global-scale manufacturing to deliver the storage systems that make AI possible, powering hyperscale data centers, cloud platforms, and enterprise…
Added 3 hours ago
Principal Software Engineer - Mobile Applications
Boston Scientific
San Jose, CA · San Jose
The Principal Software Engineer – Mobile Applications will serve as a hands-on technical leader responsible for the architecture, design, development, integration, and delivery of Android…
Added 3 hours ago
Principal Software Engineer - Mobile Applications
Boston Scientific
San Jose, CA
The Principal Software Engineer – Mobile Applications will serve as a hands-on technical leader responsible for the architecture, design, development, integration, and delivery of Android…
Added 3 hours ago
Principal/Senior Principal Engineer Electronics - Avionics Radar (Melbourne FL)
Northrop Grumman
Melbourne, FL
Northrop Grumman Aeronautics Systems has an opening for Principal/Senior Principal Engineer Electronics - Avionics Radar to join the team of qualified individuals in our Avionics…
Added 3 hours ago
Engineer or Principal Engineer - Fluid Subsystems Design
Northrop Grumman
Melbourne, FL
Northrop Grumman Aeronautics Systems has an opening for an Aeronautical Engineer, specializing in Fluid Subsystems design . This role will be located in Melbourne, FL .
Added 3 hours ago
Principal or Sr. Principal Engineer Aeronautical - Crew and Equipment Design
Northrop Grumman
Melbourne, FL
Northrop Grumman Aeronautics Systems sector is looking for a Principal Crew and Equipment Design Engineer / Sr. Principal Crew and Equipment Design Engineer with experience in Design and…
Added 3 hours ago
Test Engineer - Prin
BAE Systems
Nashua, NH
BAE Systems is searching for a Principal Test Engineer with experience in developing automated test software solutions. The ideal candidate must be a motivated self-starter, able to…
Added 3 hours ago
A
Principal Embedded Software Engineer
Actalent
Dallas, TX
- $70 to $85 USD / hour
Job Title: Principal Embedded Software EngineerJob DescriptionThe Principal Embedded Software Engineer designs, develops, and integrates embedded software for advanced vehicle control…

RTX

Principal Embedded Software Security Engineer -S3E

United States

The salary range for this role is 107,500 USD - 204,500 USD.

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Job details

Pay: The salary range for this role is 107,500 USD - 204,500 USD.
Posting language: English
Posted: Oct 30, 2026

Original job description

Date Posted:

2026-10-30

Country:

United States of America

Location:

US-AZ-TUCSON-801 ~ 1151 E Hermans Rd ~ BLDG 801 (External Site)

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements: 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

Security Clearance Type:

DoD Clearance: Secret

Security Clearance Status:

Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

Job Description

At RTX, the world largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense. Software Security Sensors and Effectors (S3E) Department is looking to hire a Senior Software Security Engineer in Tucson, AZ.

Raytheon Tucson, AZ Location
Our Culture | RTX Careers

What You Will Do:

Our 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.

Qualifications You Must Have:

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 UltaScale+ MPSoC, Versal, or similar Embedded Processors
Experience with embedded OS like VxWorks, Embedded Linux, or similar
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.

Qualifications We Prefer:

Embedded Software Security experience
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 DevSecOps 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)

What We Offer:

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”: https://www.youtube.com/watch?v=i65wOwKcNIQ
“Winter in Tucson”: https://www.youtube.com/watch?v=yZdKKkF0QkE

Learn More & Apply Now!

Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.
This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm

Location Information: This position is onsite at our campus in beautiful Tucson, AZ. Tucson has a friendly, caring, and laid-back atmosphere, combined with the innovation and energy of a metropolitan region, and recognized as one of America’s 10 Best Small Cities. Surrounded by beautiful mountains, colorful Sonoran Desert landscape and majestic saguaro cacti, Tucson is blessed with some of nature’s best work. Tucson is known for its bright blue skies, and with more than 310 sunny days per year, Tucson’s fantastic weather lets residents enjoy the outdoors year-round.

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 107,500 USD - 204,500 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, 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.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

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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More about this job

Skills

Research
C
C++
Linux
UNIX
Communication skills
Auditing
Agile
Scrum
Kanban
Python
Perl
Field-programmable gate arrays
Integrated circuits

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