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245 systems administrator jobs at 146 companies in Greeley, CO

1w
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Systems Administrator
Aurora, Colorado, United States
$128k-$214k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
15+ YOEBachelor's degree in a technical discipline or 5 additional years of experience; 15+ years in systems administration or related IT; RHEL experience; TS/SCI with polygraph required.
Red Hat Enterprise Linux (RHEL), Microsoft Windows, AWS
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1w
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Sr. Systems Administrator
Denver, Colorado, United States
$136k-$166k/yr OnsiteFull Time
Boeing Intelligence & Analytics
Boeing Intelligence & AnalyticsNYSE: BA: Delivers intelligence, analytics, and cyber solutions for national security.
10+ YOERequires 10 years of systems administration experience or equivalent education, TS/SCI with active CI polygraph, systems and network expertise, operating systems knowledge, ITSM experience, and leadership abilities.
Windows, macOS, Linux, ITSM, Active Directory, ServiceNow, Remedy, Jira Service Management, CompTIA Server+, Microsoft Certified Systems Administrator, Red Hat Certified System Administrator
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1mo
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Infrastructure/Systems Administrator
Sterling or Austin or Denver
$105k-$231k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
10+ YOEActive TS/SCI with polygraph, bachelor’s degree or equivalent, 10+ years related experience, extensive Linux experience, systems administration, patching, troubleshooting, documentation, and collaboration skills.
Linux, Puppet, Satellite, IPA, Nagios, Net App
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2w
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Systems Administrator II
Broomfield, Colorado, United States
$79k-$135k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
2+ YOEBachelor's degree or equivalent experience, 2+ years systems administration, CompTIA Security+/DoD 8570 IAT II, Active Directory, VMware, endpoint hardening, STIG/RMF familiarity, TS/SCI eligible.
Active Directory, VMware, PowerShell, Python, Bash, RHEL, Windows
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2mo
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Systems Administrator
Cheyenne, Wyoming, United States
HybridFull Time
Blue Cross Blue Shield of Wyoming
Blue Cross Blue Shield of Wyoming: Provides health, dental, and vision insurance plans in Wyoming.
2+ YOE2+ years related IT experience, associate degree in IT (or equivalent experience). Must administer Linux and Windows servers, VMware ESXi, Microsoft infrastructure, cloud services, backups, security, and produce system documentation.
VMware ESXi, VMware, Microsoft Azure, Microsoft Office 365, Microsoft Active Directory, Linux, Windows Server, Microsoft 365
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1w
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Senior Systems Administrator
Loveland or Ames
$95k-$105k/yr HybridFull Time
Hach
HachNYSE: VLTO: Manufactures analytical instruments and reagents for global water quality testing.
6+ YOEBachelor’s degree or equivalent experience; 6+ years in enterprise infrastructure or systems administration; expertise in Windows Server, Active Directory, DNS/DHCP, Group Policy, VMware, PKI, email authentication, vulnerability remediation, and PowerShell.
Windows Server, Active Directory, VMware, DNS, DHCP, Group Policy, DKIM, SPF, DMARC, SSL/TLS, PKI, PowerShell
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1mo
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Systems Administrator-Cleared
Denver or Folsom
$120k-$165k/yr OnsiteFull Time
Voyager Technologies
Voyager TechnologiesNYSE: VOYG: Provides advanced defense and commercial space technology solutions.
3+ YOEActive TS/SCI required, 3+ years systems administration experience; manage Microsoft 365/Azure, Intune, Okta, AD, Windows/Linux servers, virtualization, Fortinet networking, and scripting (PowerShell/Bash/Python).
Microsoft 365, Microsoft Azure, Microsoft Intune, Okta, Microsoft Entra ID, Microsoft Exchange Online, Microsoft Teams, Microsoft SharePoint, Microsoft Defender, Windows Server, Linux, Ubuntu, RHEL, CentOS, VMware vSphere, Hyper-V, Fortinet, FortiGate, FortiSwitch, FortiClient, Active Directory, PowerShell, Bash, Python, ServiceNow, Jira Service Management
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3d
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Systems Administrator I
Boulder, Colorado, United States
$75k/yr HybridFull Time
RIVA Solutions
RIVA Solutions: Delivers digital transformation and IT solutions to government agencies.
Requires a bachelor's degree or equivalent experience, Windows systems knowledge, networking fundamentals, ticketing-system experience, communication skills, U.S. work authorization, and ability to obtain Public Trust clearance.
Windows, Sunflower, Service Desk Plus, LAN, WLAN, TCP/IP, DNS, DHCP, Microsoft Office, UNIX, Linux, macOS, Druva, BigFix, TeamViewer, Jamf Pro, Apple Business Manager, FISMA, NIST 800-53, Risk Management Framework (RMF)
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Systems Administrator, Tech Infrastructure
Saint Petersburg or Denver or Southfield
$60k-$100k/yr OnsiteFull Time
Raymond James
Raymond JamesNew York Stock Exchange: RJF: Provides wealth management, investment banking, and retail banking services.
0+ YOETranslate functional specs, document interfaces, analyze and validate requirements, produce reports, and support system development; bachelor’s degree in accounting, business administration, or computer and information science required.
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3d
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Systems Administrator (AHT)
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 and 2 years of IT experience; Linux and Windows server administration, VMware, NAS storage, Top Secret clearance, Full Scope Polygraph, and DoD 8570 IAT Level 2 certification required.
Linux, Windows, VMware, NAS Storage, NetApp, ONTAP, Red Hat Enterprise Linux (RHEL), Windows 10, Windows Server, Group Policies (GPOs), Active Directory, Microsoft SharePoint, Splunk, Tenable, Nessus, ESXi, iptables, Wiki
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2mo
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Systems Administrator
Tacoma or Aurora or San Antonio or Falls Church
OnsiteFull Time
BDR Solutions
BDR Solutions: Provider of IT, engineering, and consulting for federal agencies.
8+ YOE8+ years experience in mobile application deployment, 4‑year degree in IT/math or equivalent, active IAT II and CE certifications to meet DoD 8570/8140, U.S. citizenship, and experience with web development technologies and secure DoD environments.
HTML, CSS, JavaScript, React, Angular, Vue, ASP.NET, C#, Sitecore, SQL, MVC5, PWAs, Jira
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Sr Systems Administrator
Boulder, Colorado, United States
OnsiteFull Time
Natera
NateraNASDAQ: NTRA: Provides clinical genetic testing and diagnostics services.
7+ YOERequires 7+ years in IT support or operations, networking and endpoint management experience, Level 2–3 escalation ownership, enterprise systems support, and strong communication skills.
Google Workspace, Zoom, Atlassian, Mobile Device Management (MDM), DNS, DHCP, VPN, Microsoft?
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4d
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QGenda Systems Administrator & Physician Scheduling
Aurora, Colorado, United States
$71k-$95k/yr OnsiteFull Time
University of Colorado
University of Colorado: Public research university providing higher education and healthcare services.
3+ YOEBachelor’s degree in business, healthcare administration, information systems, computer science, public health, or related field, plus three years administering scheduling or healthcare workforce systems.
QGenda, Microsoft Excel, Epic, Microsoft Power BI, SQL, Python, Tableau
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Technical Systems Administrator II
Louisville, Colorado, United States
$87k-$120k/yr OnsiteFull Time
Sierra Space
Sierra Space: Develops spacecraft and infrastructure for orbital and space transportation
2+ YOEBachelor's or equivalent and typically 2+ years IT systems experience. Proficiency in OS installation/configuration, networking, virtualization, scripting, backup/recovery, Windows/Active Directory administration.
Ansible, Puppet, Chef, AWS, Azure, Active Directory, Computer Management
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2mo
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Business Systems Administrator Senior
Aurora, Colorado, United States
$95k-$142k/yr HybridFull Time
Children's Hospital Colorado
Children's Hospital Colorado: Provides comprehensive pediatric medical and surgical healthcare services.
5+ YOEBachelor's degree and 5+ years related experience; ERP/business systems administration, vendor integration, testing, SQL/SSIS, Python, Tableau/Microsoft Power BI, UKG Pro experience preferred.
UKG Pro Workforce Management (Dimensions or Kronos), SQL, SSIS, API, Python, Tableau, Microsoft Power BI, Microsoft Excel
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4w
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Systems Administrator - Collaboration Team
Rifle or Denver or Grand Junction
$60k-$105k/yr OnsiteFull Time
Alpine Bank
Alpine BankOTCQX: ALPIB: Providing personal, business, and wealth management banking services.
5+ YOE5+ years IT experience, BA/BS or equivalent, 2+ years on assigned system preferred, strong troubleshooting, scripting (PowerShell), AD and security experience, ability to obtain industry certification.
PowerShell, Active Directory, Microsoft 365, Microsoft Teams, SharePoint Online, Exchange Online, OneDrive
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5d
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Principal Systems Administrator
Westminster, Colorado, United States
$118k-$201k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
6+ YOEBachelor's degree and 6 years of related experience, or high school diploma and 10 years. Requires Windows, VMware, Active Directory, DNS, DHCP, TCP/IP, PowerShell, hardware, security, and DoD 8570 expertise.
Microsoft Windows, VMware, VMware vSphere ESXi, VMware vCenter, VMware vRealize Operations Manager, Microsoft Active Directory, PowerShell, Linux, AutoCAD, SolidWorks, ANSYS HFSS, DNS, DHCP, TCP/IP
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1mo
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Infrastructure/Systems Administrator
Sterling or Austin or Denver
$105k-$231k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
10+ YOEActive TS/SCI with poly, bachelor's or equivalent, 10+ years related experience, extensive Linux experience, strong troubleshooting, project experience, and ability to work off-hours.
Linux, Puppet, Satellite, IPA, Nagios, Net App
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4w
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Senior Financial Systems Administrator
Denver, Colorado, United States
$145k-$165k/yr HybridFull Time
Kharon
Kharon: A global risk analytics platform provider focused on sanctions compliance, trade controls, and financial crime risk intelligence.
5+ YOEBachelor's degree,5+ years relevant experience including 3+ years administering NetSuite in a SaaS environment; NetSuite Administrator or SuiteFoundation certification; hands-on SuiteScript, workflows, saved searches, API integrations; SOX experience.
NetSuite, Navan, Zip, Rippling, Planful, SuiteScript
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1mo
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Information Technology (IT) Systems Administrator II
Westminster, Colorado, United States
$25-$35/hr OnsiteFull Time
CesiumAstro
CesiumAstro: Develops phased array communication systems for satellites and aircraft.
1+ YOE1-3 years corporate IT experience; associate degree or equivalent; administer Windows and Linux systems; networking knowledge; strong communication, troubleshooting, and customer service skills; security/government compliance experience preferred.
Ubuntu, Windows 11, Windows Server 2019, Windows Server 2022, VMware ESXi, Microsoft 365, SharePoint, WSL, Active Directory
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