- CACI International (Colorado Springs, CO)
- Linux Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular Percentage of ... are needed on an ongoing basis. **The Opportunity:** CACI is looking for a Linux Administrator to support the Department of the Air Force (DAF) Enterprise IT as… more
- Northrop Grumman (Aurora, CO)
- …Want You!** The Northrop Grumman Classified Solutions team is seeking an experienced ** Linux Systems Administrator ** to join its dynamic team of technical ... but not be limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract. + Communicate effectively at all… more
- Insight Global (Boulder, CO)
- Job Description A company in the Boulder, CO areas is looking for a qualified Linux System Administrator with a Top Secret clearance to join their team ... supporting a DoD program. The System Administrator will work to maintain multi-user computer systems, including coordination with network administrators to maintain… more
- GovCIO (Denver, CO)
- **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active Secret clearance to join an Operations team. This position ... USD $135,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6348/senior- linux -system- administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID** _2025-6348_ **Category** _IT… more
- Leidos (Aurora, CO)
- **Description** **Leidos** has a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... a difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where you'll provide crucial support for the implementation,… more
- RTX Corporation (Aurora, CO)
- …for a security clearance **Security Clearance:** TS/SCI with Polygraph **Sr. Principal Linux System Administrator , Aurora, CO, must have active TS/SCI - ... a Raytheon program in a classified environment as a Senior Principal Linux System Administrator . + Responsibilities include building, maintaining, and securing… more
- ManTech (Aurora, CO)
- MANTECH seeks a motivated and customer-focused ** Linux ** **System Administrator ** to join our team in **Southlands, Colorado** . This position supports the ELINT ... issues at Tier 1 and Tier 2 support levels + Configure and manage UNIX/ Linux operating systems and install/load OS software + Optimize system operations and perform… more
- ManTech (Aurora, CO)
- ManTech is seeking a ** Linux ** **System Administrator ** to join our team in **Southlands, Colorado** . This position supports the ELINT Modernization effort and ... issues at Tier 1 and Tier 2 support levels + Configure and manage UNIX/ Linux operating systems and install/load OS software + Optimize system operations and perform… more
- GovCIO (Denver, CO)
- **Overview** GovCIO is hiring a Windows and Linux System Administrator (Senior) to support Veterans Affairs operational needs. The role requires AWS, Windows, ... /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6366/ linux -system- administrator %2c-senior-%28remote%29/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID** _2025-6366_… more
- GovCIO (Denver, CO)
- **Overview** GovCIO is hiring for a Senior Systems Administrator ( Linux and Windows) to provide on-going support for the administration of the core system ... environments + Three years of demonstrated professional experience supporting a Linux OS production environment + Three years of demonstrated professional experience… more