- 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
- 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 ... /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6239/ senior -systems- administrator --%28linux-windows%29/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID** _2025-6239_… more
- GovCIO (Denver, CO)
- …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) ... **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active...administration duties will be included in this role. + Senior -level RedHat Linux server administration experience, experience… 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, ... $150,000.00 /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**… more
- RTX Corporation (Aurora, CO)
- …You will be supporting a Raytheon program in a classified environment as a Senior Principal Linux System Administrator . + Responsibilities include building, ... for a security clearance **Security Clearance:** TS/SCI with Polygraph **Sr. Principal Linux System Administrator , Aurora, CO, must have active TS/SCI -… more
- BAE Systems (Broomfield, CO)
- …available based on position level and/or job specifics. **Cleared IT Systems Administrator Senior ** **115020BR** EEO Career Site Equal Opportunity Employer. ... REQUIRED** BAE Systems Space and Mission Systems is seeking an experienced Linux System Administrator that will support the implementation, troubleshooting and… more
- CACI International (Denver, CO)
- Senior System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: ... Posting End: 9/19/2025 CACI is seeking **Systems Administrators** with Linux Infrastructure experience to manage and maintain mission-critical operational IT… more
- University of Colorado (Denver, CO)
- ** Senior Enterprise Applications Administrator ** **Description** **Join Our Team and Make a Difference in Higher Education!** **Position Summary:** **Where You ... Posted by the FREE value-added recruitment advertising agency (https://www.jobelephant.com/) Senior Enterprise Applications Administrator - 36797 University… more
- State of Colorado (Denver, CO)
- Senior Enterprise Applications Administrator Print (https://www.governmentjobs.com/careers/colorado/jobs/newprint/4984921) Senior Enterprise Applications ... students, faculty, human resources employees, finance employees, and others. The Senior Enterprise App Admin supports current PeopleSoft (PS) applications and… more
- ASM Research, An Accenture Federal Services Company (Denver, CO)
- …and design. Provides direction to other IT Administrators on the project in a senior administrator capacity. Considered a technical specialist in a variety of IT ... administrator disciplines. * Manage a team of Linux and Windows Administrators responsible for the planning, implementation, and managing of critical systems. *… more