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Department Defense Security Jobs in Texas

department defense security Texas

Viewing 1 - 20 of 314

Department Defense Security Jobs in Texas requiring security clearance

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Software Engineer Intern - Summer 2026 (For SNC Summer 2025 Inte

Sierra Nevada Corporation
Plano, TX(On-Site/Office)
Posted 1 month ago
Secret
Not Specified

Come start your career with some of the brightest and most innovative minds in the country. Get your hands on actual projects, and at the same time, prepare for a truly awesome career in aerospace and...

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Electrical Engineer Intern - Summer 2026

Sierra Nevada Corporation
Plano, TX(On-Site/Office)
Posted 1 month ago
Secret
Not Specified

Come start your career with some of the brightest and most innovative minds in the country! As a Technical Intern, you will participate in a comprehensive summer internship program designed to provide...

user avatar

Executive Assistant I

Sierra Nevada Corporation
Plano, TX(On-Site/Office)
Posted 1 month ago
Secret
Not Specified

Do you have a passion for all things executive administrative support, operational excellence and team leadership? We have the opportunity for you! As an Executive Assistant I, you will provide dynami...

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Operational Technology (OT) Adversary Emulation Engineer

MITRE Corporation
San Antonio, TX(On-Site/Office)
Posted 2 months ago
Top Secret
None

Why choose between doing meaningful work and having a fulfilling life? At MITRE, you can have both. That's because MITRE people are committed to tackling our nation's toughest challenges-and we're com...

user avatar

Security Officer - Cleared Patrol

Allied Universal
Lewisville, TX(On-Site/Office)
Posted 3 weeks ago
Secret
Not Specified

OverviewCompany Overview: Allied Universal®, North America's leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a dynam...

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Security Officer - Cleared (Clearance Required - Unarmed)

Allied Universal
Waco, TX(On-Site/Office)
Posted 3 weeks ago
Secret
Not Specified

OverviewCompany Overview: Allied Universal®, North America's leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a dynam...

user avatar

Security Officer - Cleared

Allied Universal
Mckinney, TX(On-Site/Office)
Posted 1 week ago
Secret
Not Specified

OverviewCompany Overview: Allied Universal®, North America's leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a dynam...

user avatar

Security Officer - Cleared

Allied Universal
Mckinney, TX(On-Site/Office)
Posted 1 week ago
Secret
Not Specified

OverviewCompany Overview: Allied Universal®, North America's leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a dynam...

user avatar

Security Officer - Cleared

New
Allied Universal
Apply today! Be one of the first candidates to apply for maximum exposure.
Plano, TX(On-Site/Office)
Posted 4 days ago
Secret
Not Specified

OverviewCompany Overview: Allied Universal®, North America's leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a dynam...

user avatar

Firewall Engineer (First Shift)

NexGen Data Systems, Inc.
San Antonio, TX(On-Site/Office)
Posted 1 month ago
5+ yrs exp
Secret

NexGen Data Systems is seeking a first shift 0600 – 1430 CST Firewall Engineer with experience supporting in-service systems for the worldwide network. The Firewall Engineer will support users in the ...

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Accountant (Staff)

New
Department of the Navy
Apply today! Be one of the first candidates to apply for maximum exposure.
Corpus Christi, TX(On-Site/Office)
Posted 1 day ago
Secret
Not Specified

Duties You will operate and analyze accounting systems in order to interpret accounting data, records, and reports. You will advise on changing accounting requirements and the need for new accounting ...

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Lead Operational Technology (OT) Cybersecurity Engineer

MITRE Corporation
San Antonio, TX(On-Site/Office)
Posted 1 month ago
Top Secret
None

Why choose between doing meaningful work and having a fulfilling life? At MITRE, you can have both. That's because MITRE people are committed to tackling our nation's toughest challenges-and we're com...

user avatar

Senior Operational Technology (OT) Cybersecurity Engineer

MITRE Corporation
San Antonio, TX(On-Site/Office)
Posted 1 month ago
Top Secret
None

Why choose between doing meaningful work and having a fulfilling life? At MITRE, you can have both. That's because MITRE people are committed to tackling our nation's toughest challenges-and we're com...

user avatar

Network Specialist

NexGen Data Systems, Inc.
Naval Station 32nd St, CA(On-Site/Office)
Suffolk, VA(On-Site/Office)
Charleston, SC(On-Site/Office)
Fort Sam Houston, TX(On-Site/Office)
Posted 2 weeks ago
2+ yrs exp
Secret

NexGen Data Systems is seeking a Network Specialists to provide daily on-site network operations support at assigned MTF location, ensuring network infrastructure availability, resolving Tier 0 incide...

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ISSO 3 102-214

IC-CAP
San Antonio, TX(On-Site/Office)
Posted 1 month ago
TS/SCI
Polygraph

Information System Security Officer (ISSO) 3 The ISSO 3 is responsible for ensuring the appropriate operational security posture is maintained for an information system and as such, works in close col...

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Accountant (Staff)

New
Department of Defense
Apply today! Be one of the first candidates to apply for maximum exposure.
Corpus Christi, TX(On-Site/Office)
Posted 1 day ago
Secret
Not Specified

Duties Help You will operate and analyze accounting systems in order to interpret accounting data, records, and reports. You will advise on changing accounting requirements and the need for new acco...

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PROGRAM ANALYST

New
Department of the Navy
Apply today! Be one of the first candidates to apply for maximum exposure.
Fort Worth, TX(On-Site/Office)
Posted 2 days ago
Secret
Not Specified

Duties You will analyze budget, staffing resources, and organization structure to determine the most efficient procedure for integrating these resources. You will assess requests for manpower or resou...

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Automation Technician, Electronics

BAE Systems
Dallas, TX(On-Site/Office)
Posted 3 weeks ago
Public Trust
Not Specified

Job Description This position is for an ATG/IAS/OPS/GVS Automation Technician, Electronics. Working alone or in small teams, this individual will perform testing and maintenance functions on Automatic...

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Automation Technician, Electronics

BAE Systems
Dallas, TX(On-Site/Office)
Posted 1 week ago
Public Trust
Not Specified

Job Description This position is for an ATG/IAS/OPS/GVS Automation Technician, Electronics. Working alone or in small teams, this individual will perform testing and maintenance functions on Automatic...

user avatar

Supervisory Facility Operations Specialist

New
Department of Defense
Apply today! Be one of the first candidates to apply for maximum exposure.
San Antonio, TX(On-Site/Office)
Posted 2 days ago
Secret
Not Specified

Duties Help Perform the duties of Program Manager for Operations and Maintenance (including Reliability Centered Maintenance) program. Participate in the development of the annual and multi-year bud...

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