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150 junior system administrator jobs at 108 companies in Colorado

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Network System Administrator I
Colorado Springs, Colorado, United States
$47/hr OnsiteFull Time
Targeted Solutions
Targeted Solutions: Provides cybersecurity and security consulting services to government agencies.
1+ YOERequires 1–3 years of related experience, a related bachelor's degree or equivalent, DoD IAT Level I certification eligibility, Top Secret clearance, Windows and server administration, networking, virtualization, and DoD systems knowledge.
Microsoft Windows Server, Red Hat Enterprise Linux, Microsoft Hyper-V, VMware ESXi, Xen, BMC Footprints, WSUS, Lumension, BitLocker, Microsoft SQL Server, Tomcat, Microsoft IIS, Microsoft Windows 10, Microsoft Office, LogRhythm, ACAS, Nessus, SCAP, SELinux, PitBull, AppArmor, Sentris, Oracle, Apache, Cisco
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1d
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19-039 – Network/System Administrator I
Schriever AFB, Colorado, United States
$94k/yr OnsiteFull Time
Sandy Mac Evolution
Sandy Mac Evolution: Veteran-owned provider of security and professional defense services.
1+ YOERequires 1–3 years of network/system administration experience, Windows and Cisco knowledge, LAN/WAN and virtualization familiarity, cybersecurity support skills, and eligibility for Top Secret, SCI, and SAP access.
Microsoft Windows Server, Microsoft Windows, Cisco, Hyper-V, VMware, ESXi, ACAS, Nessus, SCAP, Security Information and Event Management (SIEM)
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3w
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Network/System Administrator I
Colorado Springs, Colorado, United States
$110k-$114k/yr OnsiteFull Time
gTANGIBLE Corporation
gTANGIBLE Corporation: Provides professional and management services to US government agencies.
1+ YOE1-3 years related experience; meet DoD 8570.01-M IAT Level I within 6 months; knowledge of Windows and RHEL, CISCO networking, virtualization, LAN/WAN, and DoD policies; ability to lift 50 lbs; Top Secret/SCI eligibility and polygraph consent.
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 10, Red Hat 6.5, Microsoft Office Toolkits, SIEM, Logrhythm, ACAS, Nessus, SCAP, SE Linux, PitBull, AppArmor, Sentris, VOIP, Oracle, MS SQL, Apache, CISCO
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3d
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Network/System Administrator I
Colorado Springs, Colorado, United States
$110k-$130k/yr OnsiteFull Time
System High
System High: Provides specialized security engineering and protection for national security missions.
1+ YOERequires 1–3 years of related experience, a bachelor's degree or equivalent experience, Top Secret clearance with SCI eligibility, SAP access eligibility, DoD 8570.01-M certification within six months, and Windows, networking, and virtualization knowledge.
Microsoft Windows Server, Red Hat Enterprise Linux, Microsoft Hyper-V, VMware ESX, Xen, BMC Footprints, WSUS, Lumension, BitLocker, Microsoft SQL Server, Tomcat, IIS, Microsoft Windows 10, Microsoft Office, LogRhythm, ACAS, Nessus, SCAP, SELinux, RHEL, PitBull, AppArmor, Sentris, VOIP, Oracle, Apache
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3w
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Network-System Administrator I
Colorado Springs, Colorado, United States
OnsiteFull Time
Global Resource Solutions
Global Resource Solutions: Provides security and intelligence services to US government agencies.
1+ YOE1–2 years related experience, working knowledge of Microsoft Windows/Exchange, LAN/WAN, backups, RMF/A&A, COMSEC, DoD 8570 compliance within 6 months, Top Secret with SCI and polygraph eligibility.
Microsoft Windows 2008 R2/2012 R2 Server, Microsoft Exchange Server 2003/2010, Microsoft Windows 7/10, Microsoft Office (Word, PowerPoint, and Excel), IP, TCP, HTTP, HTTPS, FTP, SSL, COMSEC, Risk Management Framework, Common Criteria, System Security Policy, PL1, PL2, PL3, PL4
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2w
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System Administrator- Must have TS/SCI Poly clearance
Aurora, Colorado, United States
$69k-$131k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
2+ YOEActive transferable TS/SCI with CI poly, DoD 8570 IAT Level 2 cert, bachelor\u0002s and ~2 years experience, Linux RedHat and Microsoft Windows experience, virtualization/cloud (Citrix, VMware, AWS), 24x7 operations support.
Linux RedHat, Microsoft Windows, Citrix, VMware, Amazon Web Services (AWS), Cloudera, Oracle, Dell/EMC, Isilon/PowerScale, NetApp
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2mo
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IT System Administrator II
Melbourne or Colorado
OnsiteFull Time
CesiumAstro
CesiumAstro: Develops phased array communication systems for satellites and aircraft.
2+ YOEMinimum 2 years corporate IT experience, Bachelor's in MIS/IT or related, strong Windows and Linux administration, networking knowledge, VMware ESXi, Microsoft 365/SharePoint, Active Directory, strong communication and troubleshooting skills; U.S. eligibility required for export-controlled technology.
Ubuntu, Windows 11, Windows Server 2019, Windows Server 2022, VMware ESXi, Microsoft 365, SharePoint, WSL, Active Directory
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1mo
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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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1mo
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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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4d
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Net/Sys Admin I - Network/System Administrator
Colorado Springs, Colorado, United States
$71k-$95k/yr OnsiteFull Time
Watermark Risk Management International
Watermark Risk Management International: Provides security and risk management services for government agencies.
1+ YOERequires 1–3 years of related experience, a related bachelor's degree or equivalent, DoD 8570 IAT Level III certification within six months, Top Secret clearance with SCI eligibility, and SAP access eligibility.
Microsoft Windows Server, Red Hat Enterprise Linux, Microsoft Hyper-V, VMware, Xen, BMC Footprints, WSUS, Lumension, BitLocker, Microsoft SQL Server, Tomcat, IIS, Microsoft Office, SIEM, LogRhythm, ACAS, Nessus, SCAP, SELinux, PitBull, AppArmor, Sentris, VOIP, Oracle, Apache, Microsoft Exchange Server, Cisco, YUM
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5d
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Network Administrator - Ground System Specialist
Colorado Springs or California
$100k-$120k/yr OnsiteFull Time, Contract
Infinity Systems Engineering
Infinity Systems Engineering: Provides specialized systems engineering and mission operations for aerospace programs.
2+ YOERequires Secret clearance, U.S. citizenship, 2+ years relevant experience, GPS or DoD satellite operations experience, network troubleshooting skills, and CompTIA Security+ certification; bachelor's degree desired.
Next Generation Operational Control Segment (OCX), Cross Domain Solution, High Speed Guard, GPS, GPS-type software, CompTIA Security+, MCS, TSF, AMCS, AEP
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1w
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Project Administrator
Denver, Colorado, United States
$45k-$83k/yr HybridFull Time
Trane Technologies
Trane TechnologiesNYSE: TT: Global provider of heating, ventilation, and air conditioning solutions.
0+ YOEHigh school diploma or GED and up to two years of related experience or training. Requires communication, problem-solving, prioritization, basic accounting, and financial systems experience.
HVAC, BAS
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1w
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Office Administrator
Monument, Colorado, United States
$18-$22/hr OnsiteFull Time
Caliber Collision
Caliber Collision: Provider of automotive collision repair and glass replacement services.
2+ YOE2+ years customer-facing experience, 1+ year AP/AR/payroll preferred, valid driver’s license, ability to use multiple software systems including Microsoft Office, strong communication skills.
Microsoft Office
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2mo
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Senior Systems Administrator
Colorado Springs, Colorado, United States
$90k-$120k/yr OnsiteFull Time
Bluestaq
Bluestaq: Develops secure data management platforms for defense and space missions.
2+ YOEActive DoD Secret or Top Secret clearance, 2+ years systems administration experience, Linux and Active Directory administration, automation with Ansible/Terraform/Docker/Kubernetes, AWS familiarity, CompTIA Security+ required; Confluence and Jira experience.
Active Directory, Ansible, AWS, Confluence, Docker, Jira, Kubernetes, Linux, Packer, Terraform
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3w
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Office Administrator - UniFirst
Aurora, Colorado, United States
$53k-$73k/yr OnsiteFull Time
UniFirst
UniFirstNYSE: UNF: Provides uniform rental, workwear, and facility service solutions.
Prefer two-year degree and ~2 years management experience; strong communication, people-management, payroll/HR support, data entry, customer service, and proficiency with Microsoft Word, Excel, PowerPoint, Access and UniFirst systems.
Microsoft Word, Microsoft Excel, PowerPoint, Access, UniFirst Account Management System
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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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1mo
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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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5d
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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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1w
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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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4d
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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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