- Amentum (Waimea, HI)
- …following OS Certifications required + Linux + Linux+ Red Hat Certified System Administrator (RHCSA) **Security Clearance** Top Secret security clearance is ... Amentum is seeking a highly experienced Senior Linux System Administrator to oversee and manage enterprise-level Linux infrastructure in support of US Navy… more
- Leidos (Huntsville, AL)
- …for Windows and Linux systems . + **Must have an active DoD Secret clearance and ability to obtain Top - Secret clearance.** **Preferred Qualifications:** ... Modernization CIS Team is looking for a skilled **System Administrator ** to join our team. In this role, you'll...+ Provide backup and recovery services while managing file systems and disk space. + Utilize desktop and server… more
- Huntington Ingalls Industries (Fort Meade, MD)
- …Full Time/Salaried/Exempt Anticipated Salary Range: $87,990.00 - $144,500.00 Security Clearance: TS /SCI with Poly Level of Experience: Mid This opportunity resides ... with Warfare Systems (WS), a business group within HII's Mission Technologies...with network administrators. + Duties may include setting up administrator and service accounts, maintaining system documentation, tuning system… more
- Huntington Ingalls Industries (Bremerton, WA)
- …Time/Salaried/Exempt Anticipated Salary Range: $87,194.00 - $124,562.00 Security Clearance: TS /SCI Level of Experience: Mid This opportunity resides with Warfare ... Systems (WS), a business group within HII's Mission Technologies...and the sensitivity of the operational environment, an active TS /SCI security clearance will be required. Essential Job Responsibilities… more
- S4 Inc. (Omaha, NE)
- …Commensurate with experience Job Listing Number: NE25002 LCAT: Senior Network and Computer Systems Administrator Overview: S4 Inc. has a Sr. Linux/Unix System ... users and other technical teams from a service support perspective. Required Qualifications: + Top Secret security clearance and eligible for SCI access + Cloud+… more
- SAIC (Washington, DC)
- **Description** SAIC, a leading provider of systems engineering & integration, systems development & deployment, intelligence analysis and targeting, and ... an anticipated decision expected by fall 2025.** The System Administrator responsibilities include, but are not limited to: +...and maintain the infrastructure that powers networks and operating systems such as UNIX, Linux, and Windows. + Install… more
- RTX Corporation (El Segundo, CA)
- …as only US citizens are eligible for a security clearance **Security Clearance:** TS /SCI with CI Poly - Current At Raytheon, the foundation of everything we ... problems that create a safer, more secure world. **Principal System Administrator ** in infrastructure Workplace Services, collaborates with many teams to support… more
- Competitive Range Solutions, LLC (Fort Meade, MD)
- …a culture of continuous learning and improvement. Required Qualifications: + Active Secret Clearance: TS preferred. + Education: + Associate's degree in ... projects in a collaborative, congenial environment. We are seeking a Senior System Administrator to lead the management, operations, and maintenance of complex DoD … more
- ManTech (San Antonio, TX)
- …with computer operating systems **Clearance Requirement:** + Must have a current/active TS /SCI with Poly **Physical Requirements:** + Must be able to remain in a ... **ManTech** seeks an experienced and passionate, career and customer-oriented **System Administrator ** to join our team located in the **San Antonio, TX** area.… more
- ARSIEM (Annapolis Junction, MD)
- …you work with. ARSIEM is looking for a motivated and experienced Linux System Administrator for a small, diverse team that provides end-to-end software, systems , ... Original Posting Date: 2025-10-29 Clearance Requirement: This position requires an active TS /SCI with a polygraph. You must be a US Citizen for consideration.… more