Last updated: 2025-07-21

22 It Systems Administration jobs in Denver.

Filters: Categories: It Systems Administration | Locations: Denver

Northrop Grumman

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for ge…

Tier III Network Engineer

Aurora

  • Skills: Network Engineering, Routing, Switching, Firewalls, Cabling, CISCO, Juniper, Network security, Technical documentation, Problem-solving
  • Level: senior
  • Type: full_time

General Dynamics

GDIT is a global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. g…

System Administrator Associate_TS/SCI with Polygraph

Aurora

  • Skills: Systems Administration, Technical Support, Troubleshooting, IT infrastructure, Installation, Maintenance, Customer Service, Incident Management, Change Management, VoIP
  • Level: entry
  • Type: full_time

Crusoe

Crusoe is building the World’s Favorite AI-first Cloud infrastructure company. We’re pioneering vertically integrated, purpose-built AI infrastructure solution…

IT System Administrator

Denver

  • Skills: Systems Administration, Infrastructure Engineering, Identity Management, Enterprise Applications, Cloud Environments, GCP, Azure, Windows Support, Manufacturing Systems, Network Security
  • Level: mid
  • Type: full_time

General Dynamics Mission Systems, Inc.

General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully…

Linux and Cloud Application Support Specialist

Boulder

  • Skills: Linux, Cloud, Support, Information Technology, Troubleshooting, Virtual Machines, Platform As A Service, Red Hat Enterprise Linux, Containerized Services, Department of Defense
  • Level: senior
  • Type: full_time

Palantir Technologies

Systems Engineer

Denver

  • Skills: Systems Engineer, infrastructure, Palantir Foundry, AIP, technical expertise, business systems, system integration, automation, technical leadership, operational system
  • Level: entry
  • Type: full_time

Scout

Network Engineer

Boulder

  • Skills: network infrastructure, Palo Alto, Fortinet, Cisco, SD-WAN, WAN solutions, network monitoring, cloud networking, network security, disaster recovery
  • Level: mid
  • Type: full_time

Trace3

Trace3 is a leading Transformative IT Authority, providing unique technology solutions and consulting services to our clients. Equipped with elite engineering …

Senior Managed Services Engineer

Denver

  • Skills: Windows Server, Active Directory, Linux/Unix Systems, Office 365, AWS, Azure, PowerShell, Ansible, Veeam, SolarWinds
  • Level: mid
  • Type: full_time

General Dynamics Mission Systems, Inc.

General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully…

Senior Site Reliability Engineer

Aurora

  • Skills: Site Reliability Engineering, Linux, System Uptime, Automation, Monitoring, Troubleshooting, Enterprise Services, Security Clearance, Collaboration, Professional Development
  • Level: senior
  • Type: full_time

Northrop Grumman

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for ge…

Sr Principal Systems Administrator

Aurora

  • Skills: Linux, Windows, VMware, NAS Storage, Cyber Security, Top Secret, DOD 8570, Security+ CE, Active Directory, RAID
  • Level: senior
  • Type: full_time

Visa

Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial instituti…

Staff Systems Engineer

Highlands Ranch

  • Skills: Kubernetes, AWS, GCP, Ansible, Terraform, CI/CD, Monitoring, Logging, Networking, System Administration
  • Level: mid
  • Type: full_time

Boom Supersonic

Boom is designing and building Overture, the world’s fastest airliner.

Systems Engineer - Infrastructure & Support

Denver

  • Skills: identity management, cloud environments, IT infrastructure, user support, VPN, scripting, automate, troubleshooting, SaaS tools, high-performance
  • Level: mid
  • Type: full_time

SciTec, Inc.

SciTec is a dynamic small business with the mission to deliver advanced sensor data processing technologies and scientific instrumentation capabilities in supp…

Senior Principal Windows System Administrator

Boulder

  • Skills: Windows systems administration, Active Directory, Windows Server, Group Policy, security policies, performance tuning, technical configurations, root cause analysis, SAN, networking
  • Level: senior
  • Type: full_time

Wiz

Wiz is on a mission to help organizations secure cloud environments that will accelerate their businesses. Trusted by security teams all over the world, we hav…

Senior Solutions Support Engineer

Denver

  • Skills: cloud security, technical support, troubleshooting, system administration, customer support, devops, cloud technologies, coding, Kubernetes, networking
  • Level: senior
  • Type: full_time

Parsons

We harness the power of innovation to help our customers solve their most complex challenges.

Tier 2 Network Engineer

Boulder

  • Skills: DoD Secret Clearance, Security+ Certification, Junos, Palo Alto, Network Security, BGP, OSPF, Wireshark, tcpdump, SNMP
  • Level: mid
  • Type: full_time

General Dynamics

A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. governmen…

Systems Administrator Technician _TS/SCI with Polygraph

Aurora

  • Skills: Systems Administration, Troubleshooting, Service Operations, Configuration Management, Incident Resolution, Hardware Support, Software Installation, Technical Support, Network Administration, Customer Assistance
  • Level: entry
  • Type: full_time

Appcast

Appcast is the global leader in programmatic recruitment advertising technology and services. With advanced technology, unmatched market data and a team of the…

Desktop Support Technician and IT Training Coordinator

Denver

  • Skills: Desktop Support Technician, IT Training, troubleshooting, diagnosing, Active Directory, Office 365, Helpdesk, end-user training, MacOS, Windows
  • Level: mid
  • Type: full_time

Google

Google is a global technology company that specializes in Internet services and products, including search engines, cloud computing, software, and hardware.

Network Operations Engineer, Network

Thornton

  • Skills: network operations center, Layer 1, Layer 3, TCP/IP, optical transmissions, wireless networking, network design, Unix/Linux, troubleshoot methodology, creative problem-solving
  • Level: mid
  • Type: full_time

Visa

Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial instituti…

Infrastructure Operations Engineer

Highlands Ranch

  • Skills: Infrastructure as Code, Automation, Ansible, Docker, Kubernetes, Linux, VMware, ITIL, Monitoring, Hadoop
  • Level: mid
  • Type: full_time

Leprino Foods Company

Leprino Foods is the world’s largest manufacturer of mozzarella and lactose, and a leading producer of whey protein.

Solution Architect

Denver

  • Skills: Solution Architect, cloud computing, systems & storage, Windows, Linux, VMware, Active Directory, business continuity, Pure Storage, Rubrik
  • Level: mid
  • Type: full_time

SciTec, Inc.

SciTec, Inc. is a dynamic small business with the mission to deliver advanced sensor data processing technologies and scientific instrumentation capabilities i…

Data Center Hardware Engineer

Aurora

  • Skills: data center, hardware, network, automation, cloud-native, DoD, server, storage, security clearance, documentation
  • Level: senior
  • Type: full_time