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Senior Software Engineer
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1269 - Test Engineer / Analyst
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…defense system engineering, research, design, development, integration, test, evaluation, and planning services to the U.S.…
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Test Engineer, Propulsion IV
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Platform Engineer II
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Human Spaceflight Systems Engineer
The Aerospace Corporation
Houston, TX · El Segundo, CA · Merrit Island, FL · Colorado Springs, CO · Johnson Space Center, TX
We are looking for a Human Spaceflight Systems Engineer (Senior Member of Technical Staff/ Project Engineer- Systems Engineering). This position will support various NASA programs…
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Human Spaceflight Engineer
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Added 8 mins ago
Electrical Project Engineer III/Senior
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Senior Design and Analysis Engineer
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Berkeley, MO
Boeing Defense Space & Security (BDS) is seeking a Senior Design and Analysis Engineer to serve the Air Dominance program in Berkeley, MO.
Added 12 mins ago
Autonomy Engineer (Mid Career) - Millennium Space Systems
Millennium Space Systems
El Segundo, CA
This position's internal job code is Systems Engineer. Our team is currently hiring for Level 3-4.
Added 13 mins ago
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Senior Forward Deployed Engineer, Operate
True Talent Solutions Partners
New York, NY
- $170,000 to $205,000 USD / year
…from early technical discovery through deployment, building systems that address complex operational needs and shaping reusable platform…

RTX

Embedded Software Security Engineer I - S3E

United States

The salary range for this role is 57,200 USD - 108,800 USD.

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Job details

Pay: The salary range for this role is 57,200 USD - 108,800 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

At RTX, the world's 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 Software Security Sensors and Effectors (S3E) Department is looking for a Software Engineer in Tucson, AZ. Our mission is to provide world class Security Software to be used in deployed missile systems. Our software teams employ an Agile Scrum process to rapidly design, code, and integrate capabilities on a continuous basis into a mature solution for our customers. We strive for technical excellence by drawing upon a workforce whose knowledge base covers the complete spectrum of modern computing languages and platforms.

This position requires the interest and ability to learn real-time software design and the performance implications associated with specific System Security implementations.

This position is a full-time onsite role in Tucson AZ.

What You Will Do:

As a System Security software engineer, you will be involved with application and embedded software design, development, integration, and testing of real-time missile software.
Learn and 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.
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.

•

Qualifications You Must Have:

Typically requires a Bachelor’s degree in Science, Technology, Engineering, Mathematics or related field
Experience with C / C++

Qualifications We Prefer:

Active/Existing Secret level U.S Security clearance
Experience/Knowledge of any of the following:
Linux/Unix environment
FPGAs
Inter-processor communication
ARM Architecture
Secure boot concepts
Cryptographic Algorithms or Concepts
Embedded Software and or Hardware
Embedded Operating Systems - VxWorks, Embedded Linux, or similar
Agile and DevSecOps environments
Configuration Management Tools - Git
Python or similar languages

Learn More & Apply Now!

Please consider the following role type definitions as you apply for this role.
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.

Clearance Information:

This position requires 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

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 57,200 USD - 108,800 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
Agile
Scrum
C
C++
Linux
UNIX
Communication skills
Git
Python

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