ClearanceJobs
  • Candidates
  • Employers
  • Hiring Companies
  • News & Career Advice
  • Login
  • Register now
Experience
City
State
Clearance
Posted Within
Employer Name
Country
Job Category
Job Type
Polygraph
Remote/Hybrid

Unix Windows Administrator Jobs

unix windows administrator

Viewing 1 - 20 of 509

Unix Windows Administrator Jobs requiring security clearance

Show:
Sort by:

UNIX/Windows System Administrator (Systems Administrator 3) 2721

HII Mission Technologies
Apply today! Be one of the first candidates to apply for maximum exposure.
Beale Afb, CA(On-Site/Office)
Posted 2 months ago
TS/SCI
Not Specified

Requisition Number: 27215 Required Travel: 0 - 10% Employment Type: Full Time/Salaried/Exempt Anticipated Salary Range: $88,168.00 - $110,000.00 Security Clearance: TS/SCI Level of Experience: Mid ...

user avatar

Linux Systems Administrator

Indotronix International Corp
Melbourne, FL(On/Off-Site)
Posted over 6 months ago
2+ yrs exp
Unspecified

Job Title- System Administrator Job Location- Melbourne, FL Pay rate $35- $37/hr on w2(75k) ^ months contract to hire Client is searching for a technical professional to join the Managed Operations C...

user avatar

System Administrator – Level 3 (Linux)

NineFX, Inc.
Fort Meade, MD(On-Site/Office)
Posted 3 weeks ago
10+ yrs exp
TS/SCI
Full Scope Polygraph

The Opportunity NineFX is seeking a highly qualified Level 3 System Administrator with extensive expertise in VMWare, Linux, UNIX, and Windows operating systems. The selected candidate will support ...

user avatar

System Administrator (SA) – Level 2

NineFX, Inc.
Fort Meade, MD(On-Site/Office)
Posted 3 weeks ago
10+ yrs exp
TS/SCI
Full Scope Polygraph

The Opportunity NineFX is seeking a System Administrator Level 2 to support the implementation, troubleshooting, and maintenance of enterprise IT systems. This role involves Tier 1 and Tier 2 support...

user avatar

System Administrator

Dexian Signature Federal
Mclean, VA(On/Off-Site)
Posted 5 months ago
TS/SCI
Full Scope Polygraph

Description ·Perform IT Systems Administration on physical and virtual infrastructure with a focus on firewall, email, and web security protocols. ·Ensure cyber security and OPSEC policies, principl...

user avatar

Linux or Unix Software Engineer

Peerless Technologies Corporation
Apply today! Be one of the first candidates to apply for maximum exposure.
Dayton, OH(On-Site/Office)
Posted 2 weeks ago
Secret
Not Specified

Peerless is searching for a highly skilled Mid-Senior Level Software Engineer who can hit the ground running in a fast-paced, secure environment. The ideal candidate will be a Linux or Unix-focused te...

user avatar

OCONUS Senior Systems Administrator (location is Camp Humphreys,

Empower AI
Jongno-gu(On-Site/Office)
Posted over 6 months ago
Secret
Not Specified

OverviewEmpower AI is AI for government. Empower AI gives federal agency leaders the tools to elevate the potential of their workforce with a direct path for meaningful transformation. Headquartered i...

user avatar

System Administrator (SA) – Level 3

NineFX, Inc.
Fort Meade, MD(On-Site/Office)
Posted 3 weeks ago
10+ yrs exp
TS/SCI
Full Scope Polygraph

The Opportunity NineFX is seeking an experienced System Administrator Level 3 to support implementation, troubleshooting, security hardening, and maintenance of mission critical IT systems. This role...

user avatar

Data Center Engineer (Network)

New
Zachary Piper Solutions, LLC
Apply today! Be one of the first candidates to apply for maximum exposure.
Annapolis, MD(On-Site/Office)
Posted 4 days ago
TS/SCI
Polygraph

ZP group is seeking an experienced Data Center Engineer to build, support, and maintain secure computing environments used for operational missions. This role plays a critical part in the design, depl...

user avatar

GCCS System Administrator

Venatore
Tampa, FL(On-Site/Office)
Posted 1 month ago
TS/SCI
Not Specified

About UsVenatore is a woman-owned small business headquartered in Tampa, Florida, providing mission-driven technology and professional services to federal defense and civilian agencies. We deliver exp...

user avatar

Systems Administrator [$188k/yr+] TS/SCI-FS Poly

SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Annapolis Junction, MD(On-Site/Office)
Posted 1 month ago
5+ yrs exp
Intel Agency
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph within the last 7 years to be considered. Summary: • Manage and maintain critical IT system infrastructure. ...

user avatar

Systems Administrator [$188k/yr+] TS/SCI-FS Poly

SYSTOLIC
Apply today! Be one of the first candidates to apply for maximum exposure.
Annapolis Junction, MD(On-Site/Office)
Posted 1 month ago
5+ yrs exp
TS/SCI
Full Scope Polygraph

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph within the last 7 years to be considered. Summary: • Manage and maintain critical IT system infrastructure. ...

user avatar

Technical Engagement Network (TEN) Lab Manager II

NewGen Technologies
Arlington, VA(On-Site/Office)
Posted 2 weeks ago
5+ yrs exp
TS/SCI
Not Specified

Our Partner is supporting a U.S. Government customer to provide support for onsite incident response to civilian Government agencies and critical asset owners who experience cyber-attacks, providing i...

user avatar

Top Secret Cleared Systems Administrator

ClearBridge Technology Group
Naval Air Station Patuxent River, MD(On-Site/Office)
Posted 3 months ago
Top Secret
Not Specified

Our client, an aerospace and defense company located in Patuxent River, MD, is in need of a Top Secret Cleared (SCI eligible) Systems Administrator for an initial one year contract with high likelihoo...

user avatar

Applications Administrator - Level 3

CACI
Apply today! Be one of the first candidates to apply for maximum exposure.
Suitland-silver Hill, MD(On-Site/Office)
Posted 1 month ago
TS/SCI
Not Specified

Job Title: Applications Administrator - Level 3Job Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: U...

user avatar

Systems Administrator II

New
Invictus Technical Solutions, LLC (ITS)
Ellsworth Afb, SD(On-Site/Office)
Posted 3 days ago
2+ yrs exp
Top Secret

Job Summary: Join our team as a System/Network Maintenance Technician responsible for maintaining government networks in an operational ready state. You will play a vital role in providing real-time ...

user avatar

System Administrator (SA) – Level 3

NineFX, Inc.
Fort Meade, MD(On-Site/Office)
Posted 3 weeks ago
10+ yrs exp
TS/SCI
Full Scope Polygraph

The Opportunity NineFX is seeking a System Administrator Level 3 to support, secure, and optimize enterprise IT systems across AWS, Linux, and Windows environments. This role includes cloud administr...

user avatar

Systems Administrator

ODME Solutions, LLC
San Diego, CA(On-Site/Office)
Posted 2 months ago
Secret
Not Specified

Work Location: NIWC PacificWork Schedule: Full-time, onsiteSecurity Clearance: SecretSalary Range: $75,000 to $90,000 plus benefitsRequisition: C-CBISEA-SA-1Position DescriptionODME Solutions is loo...

user avatar

Systems Administrator

The Swift Group
College Park, MD(On-Site/Office)
Posted 3 weeks ago
TS/SCI
Polygraph

For the OPS Consulting team, 'the power to help' means helping our clients, helping serve the mission, helping our employees and their families, and helping the community. Headquartered in Hanover, MD...

user avatar

SQL DBA

New
Altus Technology Solutions Llc
Fort George G Meade, MD(On-Site/Office)
Posted 3 days ago
5+ yrs exp
Intel Agency
Full Scope Polygraph

Description At Altus Technology Solutions, we are seeking an experienced SQL Database Administrator to support mission critical government operations under the XTRAWARRIOR program. This role supports ...

user avatar
ClearanceJobs
  • About Us
  • Support
  • Browse Jobs
  • Security Clearance FAQs
  • AgileATS
  • FedWork
  • Blog
Download on the App StoreGet it on Google Play
© 2026 ClearanceJobs - All rights reserved. ClearanceJobs is a DHI service .
  • Pay My Bill
  • EULA
  • Privacy Policy
  • Terms of Service
  • My Privacy Rights
  • Contact Us