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19 linux system admin jobs at 7 companies in Castle Rock, CO

3w
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Network/System Administrator (Net/Sys Admin) I
Colorado Springs, Colorado, United States
$72k-$97k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
1+ YOETS/SCI with polygraph required, 1+ years IT experience, working knowledge of Windows/Linux/CISCO/virtualization, ability to obtain IAT Level I, familiarity with DoD policies, lift up to 50 lbs.
Microsoft Windows Server, Red Hat Enterprise Linux, MS Hyper-V, VMWare, ESx, Xen, Group Policy, BMC Footprints, WSUS, Lumension, Bitlocker, SQL Server 2012, TomCat, IIS, Windows Server 2012r2/2016, Win 10, Red Hat 6.5, Microsoft Office Toolkits, SIEMs, Logrhythm, ACAS/Nessus/SCAP, SE Linux, PitBull, AppArmor, Sentris, VOIP, Oracle, MS SQL, Apache, CISCO
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Network/System Administrator (Net/Sys Admin) I
Colorado Springs, Colorado, United States
$72k-$97k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
1+ YOETS/SCI with polygraph required, IAT Level I within 6 months, 1+ years related experience, knowledge of Windows/Linux/virtualization, networking, SIEM, and DoD policies; ability to lift 50 lbs.
Microsoft Windows Server, Red Hat Enterprise Linux, MS Hyper-V, VMWare, ESx, Xen, Group Policy, BMC Footprints, WSUS, Lumension, Bitlocker, Microsoft SQL Server 2012, TomCat, IIS, Windows Server 2012r2, Windows Server 2016, Windows 10, Red Hat 6.5, Microsoft Office, SIEM, LogRhythm, ACAS, Nessus, SCAP, SE Linux, PitBull, AppArmor, Sentris, VOIP, Oracle, Apache, CISCO
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2mo
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Cloud and Infrastructure Systems Administrator - Linux admin
Denver, Colorado, United States
$83k-$174k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
7+ YOETS/SCI with Polygraph required; DoD 8570 IAT Level II (Security+ or CISSP) required or must obtain; Bachelor’s degree in CS/IT; ~7 years Linux system administration and network troubleshooting; cloud (AWS), DevOps, Puppet/IPA/Kubernetes/Ansible experience preferred.
Linux, Nutanix, AWS, IPA, Puppet, Kubernetes, Ansible
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2mo
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System Administrator/Cloud Engineer - Aurora, CO or Meridian, CO
Aurora or Meridian
$90k-$237k/yr OnsiteFull Time
ICR
ICR: Provides IT and security services
3+ YOETop Secret/SCI eligibility required; Kubernetes (K3s) experience; Linux admin; AWS Snowball Edge/Outpost; 3+ years system admin; DevSecOps pipelines; network protocols.
Kubernetes, AWS Snowball Edge, AWS Outpost, Linux, Bash, Python, Git, Ansible, Ingress controllers, Proxy server administration, NPE Certificate Management
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2mo
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Cloud and Infrastructure Systems Administrator - Linux admin
Denver, Colorado, United States
$83k-$174k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
7+ YOEDoD 8570 IAT Level II (Security+ or CISSP) or willingness to obtain; BS in CS/IT; 7+ years Linux server/desktop administration and network troubleshooting; DevOps knowledge; willingness to learn.
Linux, AWS, Puppet, IPA, Kubernetes, Ansible, Scripting
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AWS Systems Admin III - ACE Product Engineering
Seattle or Brevard County or Denver
$151k-$231k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
3+ YOE3+ years AWS infrastructure administration, IaC (Terraform/Ansible/CloudFormation), scripting (Python/Bash/PowerShell), Linux, relational DBs, PLM backend support experience, Git/CI-CD, and must be a U.S. Person.
EC2, VPC, EFS, S3, RDS, ALB, Lambda, Terraform, Ansible, CloudFormation, Python, Bash, PowerShell, Oracle, MS SQL, Linux, Git, Datadog, Splunk, PagerDuty, Docker, Kubernetes, Teamcenter, Windchill
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2w
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Junior Systems Integrator
Denver or Springfield or Sterling or St. Louis
$58k-$116k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
0+ YOEBachelor's in CS/Engineering or equivalent,0–3 years technical experience,foundational Linux/networking/system admin knowledge,Python/Bash familiarity,TS/SCI clearance and polygraph.
Linux, Python, Bash
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3d
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Engineering Tools Manager, Onsite, Multiple US Location options
McKinney or Tucson or Aurora or Largo or Richardson or State College or Fort Wayne
$108k-$205k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
8+ YOE8+ years experience with systems engineering tool deployment, support, migrations; Windows/Linux admin and scripting; leadership of tool specialists; vendor engagement and strong communication.
STK, MAK, ExtendSim, SimulationView, ArcGIS, Windows, Linux, Microsoft Excel, Microsoft Project, Microsoft PowerPoint
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2mo
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Systems Administrator
Aurora, Colorado, United States
$92k-$138k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEBachelor's degree with IT experience; TS/SCI clearance with poly; Linux/Windows admin; VMware; NAS storage; after-hours support.
Linux, Windows, VMware, NetApp, ON-TAP, RMF, STIG, Nessus, Tenable, Active Directory, GPO, Splunk
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2mo
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Virtualization Systems Administrator - TS/SCI w/Poly
Annapolis Junction or Washington or Colorado Springs or MacDill AFB or Springfield
$147k-$199k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
8+ YOE8+ years IT experience; active TS/SCI with poly; VMware/Hyper-V; Windows and Linux server admin; patching, hardening, and compliance.
VMware, Hyper-V, Windows Server, Linux Server, Patching and vulnerability management, Security and compliance tooling
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2mo
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Virtualization Systems Administrator - TS/SCI w/Poly
Annapolis Junction or Washington or Colorado Springs or MacDill AFB or Springfield
$147k-$199k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
8+ YOE8+ years IT experience; TS/SCI with poly; virtualization on VMware/Hyper-V; Windows & Linux admin; patching; DoD 8140 certs; US citizenship
VMware, Hyper-V, Windows Server, Linux Server, STIG, Patching tools
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1mo
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Computer Operations Analyst – Regional COSA (26-311)
Schriever Space Force Base, Colorado, United States
$75k-$114k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOERequires DoD 8140 IAT Level II certification, active Secret clearance (ability to obtain Top Secret/SCI), 2+ years relevant experience (or alternative degree/experience paths), systems ops/maintenance, Linux/Windows admin, troubleshooting, and Microsoft Office proficiency.
C2BMC, Linux, Windows, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
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1mo
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Infrastructure Systems Administrator
Colorado Springs, Colorado, United States
$69k-$142k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
3+ YOEBS in IT or equivalent (experience may substitute), minimum 3 years IT experience, VMware, Microsoft Server, NetApp, Linux, Windows Server admin, IIS/DHCP/DNS, active/obtainable Secret clearance, 8570.01 (Security+ or CISSP) within 90 days.
VMware, Microsoft Windows Server, Microsoft Server, NetApp, Linux, Windows File Server, IIS, DHCP, DNS, Microsoft Visio, Microsoft PowerPoint, Microsoft Excel, Microsoft Project
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1mo
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Infrastructure Systems Administrator
Colorado Springs, Colorado, United States
$69k-$142k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
3+ YOEBS in IT or equivalent (experience may substitute), minimum 3 years IT experience, active/obtainable Secret clearance, 8570.01 (Security+/CISSP) obtainable within 90 days, experience with VMware, Microsoft Server, NetApp, Linux, Windows Server admin, DHCP/DNS, and network design.
VMware 6.X, Microsoft Server 2012, NetApp Storage Systems, Linux, Microsoft Windows Server, Windows File Server, IIS, DHCP, DNS, Microsoft Visio, Microsoft PowerPoint, Microsoft Excel, Microsoft Project
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1mo
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Systems Administrator
Greenwood Village, Colorado, United States
$80k-$95k/yr HybridFull Time
GrowGeneration
GrowGenerationNASDAQ: GRWG: Retailer of hydroponic and organic gardening supplies and equipment.
3+ YOE3+ years systems admin/support experience with server, network, and cloud operations; experience with Windows AD, GPO, PowerShell, Intune/MDM, API tooling, disaster recovery, documentation, and stakeholder communication. Relevant certifications preferred.
Windows AD, GPO, PowerShell, API, MDM, Microsoft Intune, Linux
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2mo
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Staff Systems Administrator
Aurora, Colorado, United States
$177k-$266k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
12+ YOEBachelor/Associate/Master with IT experience or HS diploma with 16 years IT exp; TS/SCI with poly; Linux/Windows admin; VMware; NAS storage; 8570 IAT2; 15% travel; 40 lb lift.
VMware, Red Hat Enterprise Linux, Windows Server, NetApp ONTAP, Nessus, Tenable, Active Directory, GPOs, RMF, STIG
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1w
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Service Center Frontline Account Manager
Denver, Colorado, United States
$58k-$117k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
3+ YOEActive TS/SCI with Polygraph, DoD 8570 IAT II certification, 3+ years help desk or systems admin experience, shift-work availability, AD and networking knowledge, ServiceNow and monitoring tool experience.
Windows, Linux, Microsoft Active Directory, ServiceNow, VMware, HP OpenView, CA Concord, Microsoft Office, RSA
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2mo
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Systems Administrator
Schriever AFB, Colorado, United States
$107k-$183k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
7+ YOEBachelor's in CS or related with 7+ years' experience, 5+ years Linux/UNIX admin, DOD 8570 IAT Level II cert, Top Secret clearance (must possess) and able to obtain TS/SCI, RHEL and VMware experience, networking and security tool familiarity.
VMware, DISA STIG, ACAS, Red Hat Enterprise Linux (RHEL), Microsoft Server, Palo Alto, Cisco, Wireshark, Commvault
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1w
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Systems Administrator - Level 2 or 3
Aurora, Colorado, United States
$83k-$155k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEActive DoD TS/SCI clearance, RHEL server administration, VMware and virtualization experience, DoD 8570 IAT Level II (e.g., Security+ CE) or ability to obtain, ability to lift 40 lbs, 2+ years server admin experience preferred.
RHEL, Linux, UNIX, VMware, Active Directory
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