- Tyto Athene (Ashburn, VA)
 - …Strong experience in enterprise IT environments as an applications or systems administrator . + Practical knowledge of Windows and Linux systems ... . + Administer and optimize enterprise IT applications and systems in Windows and Linux environments. +...Web Services (AWS). + Serve as a senior Splunk Administrator or Architect, responsible for the configuration, maintenance, and… more
 
        - Applied Research Associates, Inc. (Herndon, VA)
 - …clusters + **Documentation** : Maintain thorough documentation of infrastructure, systems , and processes **Offer is contingent upon contract award.** **Senior ... + **Must be a US citizen with an active TS /SCI security clearance** + Bachelors degree in a related.../SCI with CI Poly security clearance + OpenShift Certified Administrator (OCA) or Kubernetes certification + Experience with hybrid… more
 
        - The Metamorphosis Group (Chantilly, VA)
 - System Administrator - LINUX - TS /SCI FSP REQUIRED Chantilly, VA Apply Now Job Description The Metamorphosis Group, Inc, TMG, has an immediate opening ... for a Linux System Administrator , who shall... monitoring. MUST BE US CITIZEN MUST HAVE ACTIVE TS /SCI with FSP US Veterans Preferred **ABSOLUTELY NO THRID… more
 
- Nightwing (Sterling, VA)
 - …management and providing technical services to enable customer mission accomplishment. The Senior System Administrator ( Linux ) will serve as a key member ... Linux administration, automation, and security hardening. The Senior System Administrator will ensure the availability, integrity,...Secret clearance. Must be able to obtain a TS /SCI clearance + Must be able to obtain DHS… more
 
- Nightwing (Sterling, VA)
 - …intelligence community, defense, civil, and commercial markets. Nightwing is seeking a qualified Linux Systems Administrator to work with a close-nit team ... Skills:** + US Citizenship + Must have an active Secret clearance and obtain a TS /SCI clearance...clearance + 3+ years of directly relevant experience in Linux System Administrator . + Proficiency… more
 
- Parsons Corporation (Centreville, VA)
 - …your talent and redefine what's possible. **Job Description:** Parsons is seeking a mid-level Linux Systems Administrator . The candidate will support both ... server and networking equipment rack installations **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is required for… more
 
- ManTech (Chantilly, VA)
 - **MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA** This opportunity allows you to become ... in support of critical government missions. As a **Senior Linux Systems Administrator ,** you will...replacing server hardware components where necessary + Managing operating system lifecycles and designing interfaces to external systems… more
 
- CACI International (Reston, VA)
 - Linux Systems Administrator Job Category:...guidance from more senior technical staff. **Required:** + Active Top Secret or TS /SCI clearance. + ... Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of...DoD system ? Join our team as a Systems Administrator ! You will get to use… more
 
- Parsons Corporation (Centreville, VA)
 - …Unleash your talent and redefine what's possible. **Job Description:** Our Special Programs and Systems team is hiring Linux System Administrators with a ... includes system design, configuration, and debugging of Linux systems . Note: this is a full...Citizen + Must possess and maintain Top Secret SCI clearance with polygraph + Linux … more
 
- Arena Technical Resources, LLC (Chantilly, VA)
 - …17717 Job Description Job Title: Linux Engineer Location: Chantilly, VA Eligibility: Top Secret /SCI clearance with current CI Polygraph required The ... Systems Engineering team is seeking a driven Senior Linux /UNIX Systems Administrator that is...diagnosis and resolution - Implement, troubleshoot and maintain IT systems remotely - Document the management of system… more
 
- Northrop Grumman (Dulles, VA)
 - …server management experience + Windows AD, LDAP, VMWare, and knowledge of SAN storage systems . + Linux Operating System experience and/or certification for ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of...organization is seeking a highly experienced **Senior Principal Windows Systems Administrator ** to join its dynamic team… more
 
- The Metamorphosis Group (Chantilly, VA)
 - System Support-US CITIZENS ONLY - TS /SCI... systems . + Demonstrated experience as an Oracle LINUX Systems Administrator . + Demonstrated ... experience in Oracle EXADATA administration. + Demonstrated experience with LINUX systems engineering and administration. + Demonstrated experience with Windows … more
 
- General Dynamics Information Technology (Chantilly, VA)
 - …RQ206369 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... Yes **Job Description:** Transform technology into opportunity as a Systems Administrator with GDIT. A career in...experience with web services. + **Security Clearance Level** : Top Secret /SCI with Polygraph + **Preferred Skills:**… more
 
- ENS Solutions (Reston, VA)
 - …configure and manage operating system and application software as necessary. Support Linux & Windows systems engineering efforts in system design and ... administration. Requirements + 3+ years of experience as a system administrator + Experience with installing or...SSH or Console Port + Experience operating and maintaining Linux servers, including operating systems and applications,… more
 
- Tau Six (Chantilly, VA)
 - …networking, and cybersecurity tools, techniques, and tactics. Clearance Required: US Government Top Secret / SCI Responsibilities: The Security Control Assessor ... + Experience with assessing security relevant applications. + Experience as a System Administrator , Information System Security Manager, or Information… more
 
- Leidos (Chantilly, VA)
 - …team environment. The ideal candidate will have prior experience as either a systems engineer or systems administrator . Prior OCONUS experience and ... candidates for consideration, must possess an active and in-scope TS /SCI Polygraph.** **Basic Qualifications:** + Bachelor's degree and 8+...tool as well as maintaining the tool itself + Linux system administration to include ability to… more
 
- Noblis (Chantilly, VA)
 - …resolve critical incidents within designated resolution timelines Required Qualifications + Active Top Secret ( TS ) clearance with eligibility for Sensitive ... Responsibilities As a Systems Administrator , you will be responsible...web servers. You will support the multi-enclave environment (Unclassified, Secret , and Top Secret /SCI) that… more
 
- PDS Defense (Herndon, VA)
 - **IT/Technical** ** System Administrator 5** Herndon, VA Posted: 10/28/2025 Job Description Job ID#: 214122 Job Category: IT/Technical Position Type: Associate - ... 26 Shift: 1 **PDS Defense, Inc. is seeking a System Administrator 5, in Herndon, VA. Job...talk with your recruiter. Job Requirements Minimum Security Clearance: Top Secret /SCI **VEVRAA Federal Contractor / Request… more
 
- PDS Defense (Herndon, VA)
 - **IT/Technical** ** System Administrator 4** Herndon, VA Posted: 10/28/2025 Job Description Job ID#: 214121 Job Category: IT/Technical Position Type: Associate - ... 26 Shift: 1 **PDS Defense, Inc. is seeking a System Administrator 4, in Herndon, VA. Job...talk with your recruiter. Job Requirements Minimum Security Clearance: Top Secret **VEVRAA Federal Contractor / Request… more
 
- Lockheed Martin (Herndon, VA)
 - …responsibility\. Your Mission is Ours\. Lockheed Martin Space is seeking a Summer 2026 Systems Administrator Intern\. In this role, you will focusing on ... work in the following skill areas: Working on both Linux and Windows operating systems \(Server and...non\-technical individuals and working on a team\. Required: Active Top Secret /SCI w Poly security clearance prior… more