85 junior system administrator jobs at 64 companies in Greeley, CO
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System and Desktop Administrator
Denver, Colorado, United States
HybridFull Time
E2 Optics: Provides low-voltage technology integration and infrastructure solutions.
1+ YOEHigh school diploma or GED, one year of technology experience, and hardware, software, network troubleshooting, and operating system knowledge. Requires communication, customer service, confidentiality, and physical mobility.
System Administrator- Must have TS/SCI Poly clearance
Aurora, Colorado, United States
$69k-$131k/yrOnsiteFull Time
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
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.
Adams 12 Five Star Schools: Operates K-12 public schools in the northern Denver area.
1+ YOEAssociate degree in information systems, computer science, systems administration, or related field, or two years of relevant experience substituted. One to two years of IT infrastructure experience preferred; Windows/Linux knowledge required.
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
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
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
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.
CesiumAstro: Develops phased array communication systems for satellites and aircraft.
2+ YOEBachelor's degree in a technical discipline with 2+ years Linux systems administration; networking fundamentals (TCP/IP, DNS, DHCP, VLANs), cybersecurity best practices, troubleshooting, operational readiness, and strong cross-team communication.
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)
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
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
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEBachelor's degree and 2 years of IT experience; Linux and Windows server administration, VMware, NAS storage, active Top Secret clearance, Full Scope Polygraph, and DoD 8570 IAT Level 2 certification required.
Linux, Windows, VMware, NAS, NetApp, ONTAP, Red Hat Enterprise Linux (RHEL), NISPOM, DCID 6/3, ICD 503, RMF, STIG, JAFAN, JSIG, RAID, Single Sign-On, ESXi, iptables, Windows 10, Windows Server, Group Policies (GPOs), Active Directory, Microsoft SharePoint, Splunk, Tenable, Nessus
Apollo Information Systems: Provides intelligence-led cybersecurity services and managed security programs.
2+ YOE2+ years IT/systems admin or helpdesk experience; systems administration, networking, cloud (M365/Azure/AWS), and basic scripting (PowerShell, Bash, Python); SIEM/EDR familiarity and willingness to support SOC shifts.
Microsoft M365, Azure, AWS, PowerShell, Bash, Python, Microsoft Entra, Microsoft Exchange, Microsoft Intune, Microsoft SharePoint, CrowdStrike, Sophos, SentinelOne, Exabeam, Azure Sentinel, Splunk, Fortinet, SIEM, EDR, MDR, IDS/IPS, Google Workspace
Hub GroupNASDAQ: HUBG: Provides intermodal transportation and logistics management services across North America.
Administrative support experience in a fast-paced environment, including data entry, spreadsheets, filing, phone and email communication, web-based systems, and logistics terminology.
Microsoft Word, Microsoft Excel, Microsoft Outlook
University of Colorado Boulder: Public research university offering undergraduate and graduate education programs.
2+ YOEBachelor's degree in science, engineering, or related field, or equivalent experience, plus 2 years administering storage systems in Linux or Unix environments and experience with ZFS or parallel file systems.
Tier 1 Systems Administrator - Tuesday-Saturday & Holidays
Boulder, Colorado, United States
$75k-$131k/yrOnsiteFull Time
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
0+ YOESecret DoD clearance with TS/SCI eligibility, Security+ or equivalent IAT certification, bachelor's degree or equivalent experience, and administration experience with Red Hat, Windows, Active Directory, virtualization, and networks.
Red Hat Enterprise Linux, Microsoft Windows, Microsoft Active Directory, VMware vSphere, VMware ESXi, Virtual Machines, Containers, Red Hat RPMs, HBSS, ACAS, OpenSCAP, ePO, SCC, KVMoIP, Security Information and Event Management (SIEM), Elastic, Linux, Docker, Kubernetes, Kickstart, DHCP, Ansible, SDN, RPM, Chef, Puppet, JIRA, DI2E, Confluence, VMware Workstation, VMware vCenter, AWS EC2, AWS S3, AWS Glacier, OpenShift, Shell, Python, Perl, NAS, SAN, CPU, GPU, Ethernet, IP
System Reliability & Support Specialist - Production Support
Pittsburgh or Phoenix or Denver or Birmingham or Dallas or Cleveland
$64k-$117k/yrOnsiteFull Time
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
2+ YOEBachelor's degree and 2+ years of relevant professional experience preferred. Requires production support, Linux and Windows administration, incident management, troubleshooting, Dynatrace/Logscale, and SQL/ETL skills.
TopgolfNYSE: CALY: Operates technology-enabled golf entertainment centers with food and drinks.
Strong organizational, administrative, communication, customer service, and multitasking skills; office software and booking system proficiency; event coordination or administrative experience preferred; must be at least 18.
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
0+ YOETS/SCI clearance (ability to obtain Poly), Bachelor's degree in a technical discipline, 0–3 years supporting DevOps/DevSecOps or system administration, familiarity with Linux, scripting (Python/Bash/PowerShell), Git, CI/CD and container technologies.