Last updated 2026-07-05

52 IT Systems Administration Jobs in Denver, CO, United States

Browse 52 IT Systems Administration jobs across Denver, CO, United States. Listings are updated hourly and include salary data where available.

Snapshot updated 10m ago

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Cardinal Group Career Opportunities

Jul 3
Specialist, Technical Operations
Denver, CO, United States mid Full Time $56k-62k/yr
  • Qualifications Minimum of 5 years in an operations role supporting onsite systems or related technologies, with at least 2 years…
  • Develop and maintain operational procedures related to on-site technical systems Maintain accurate records of system configurations, instal…

Loft Federal

Jul 2
Information Technology Security Administrator
Arvada, CO, United States mid $115k/yr
  • Must Haves Experience: 5+ years of hands-on experience in Systems Administration with a heavy focus on IT security.
  • The ideal candidate will be a highly technical, hands-on IT Systems Security Administrator to implement, maintain, and secure our on-premis…

Open Fertility

Jul 1
IT Support Technician
Denver, CO, United States mid $26-30/hr
  • Role Summary The IT Support Technician is responsible for proactively and reactively handling the technology needs and requirements of Doct…
  • Experience of supporting and maintaining Windows 10, Windows networking fundamentals, Laptops/Tablets, Excel, Outlook, Office 365 environme…

AMERICAN SYSTEMS

Jul 1
SCADA Windows Systems Administrator II
Lakewood, CO, United States mid Full Time $75k/yr
  • Responsibilities An Average Day: As the SCADA Windows System Administrator II you will focus on the administration, maintenance, and suppor…
  • Plan, coordinate, and execute the installation, testing, operation, and maintenance of Windows-based hardware and software systems within a…

Astreya Partners, LLC

Jul 1
Network Operations Engineer I 
Denver, CO, United States entry Full Time $59.8k-94.4k/yr
  • What this Job Entails: The Network Operations Engineer I is a network and server support engineer for CDN cluster environments.
  • Scope: Applies company policies and procedures to resolve routine issues Works on problems of limited scope Receives detailed instructions…

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Katalyst Space Technologies

Jun 30
Senior IT Systems Administrator
Broomfield, CO, United States senior $110k-175k/yr
  • Provide responsive technical support, troubleshoot hardware and software issues, document processes, and continuously improve IT operations…
  • Strong experience with Microsoft 365, Entra ID (Azure AD), endpoint management, identity and access management, and SaaS administration.

GD Information Technology, Inc.

Jun 30
Help Desk Technician (TS/Q Clearance Required)
Denver, CO, United States mid Full Time $27.20-36.80/hr
  • WHAT YOU’LL NEED TO SUCCEED: Required Experience: 3-6 years of helpdesk experience Required Technical Skills: CompTIA Security+ (DoD 8570 C…
  • As a Technical Help Desk Professional, you will be trusted to work on diagnosing, resolving application issues, and providing appropriate…

Sierra Nevada Corporation

Jun 30
Sr Systems Security Engineer
Englewood, CO, United States mid Full Time $143.5k-197.3k/yr
  • As a Senior Systems Security Engineer, you will lead the design and implementation of our security infrastructure.
  • Experience with Identity and Access Management (IAM) integration — LDAP, Active Directory, Kerberos, SAML/SSO configuration for engineering…

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First Meridian Services

Jun 29
IT Systems Support Administrator
Denver, CO, United States mid $75k-90k/yr
  • The position works closely with the IT Support and Systems Administration teams to ensure reliable, standardized technology operations acro…
  • Serving as the primary escalation point for complex IT issues, this role is responsible for maintaining system performance, supporting endp…

Northrop Grumman

Jun 26
Principal Linux/AWS Systems Administrator - Polygraph
Aurora, CO, United States senior Full Time $98.9k-148.3k/yr
  • The responsibilities of this role include, but are not limited to, the following: * Perform as a Principal Computer Systems…
  • The Northrop Grumman Classified Solutions CIDO team is seeking a Principal Computer Systems Analyst (Linux/AWS Systems Administrator) to su…

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bet365

Jun 23
Senior Windows End User Technology Engineer
Denver, CO, United States senior Full Time $90k-120k/yr
  • Job Description As a Senior End User Technology Engineer, you will use strong technical expertise to ensure delivery of innovative…
  • Managing and supporting end user technology platforms including deployment, security, device management and application packaging.

94-1687665 Bank of America, National Association

Jun 23
Cyber Security Analyst (Unix/Linux Configuration Monitoring required)
Denver, CO, United States mid Full Time $100k-141.3k/yr
  • Role Description: Seeking a Cybersecurity Analyst with strong Unix/Linux expertise to support configuration security monitoring across the…
  • Required Qualifications 3+ years experience with strong knowledge and conceptual understanding of Unix/Linux OS products, platforms, securi…

More roles at 94-1687665 Bank of America, National Association

Voyager Technologies, Inc.

Jun 22
Systems Administrator-Cleared
Denver, CO, United States mid $120k-165k/yr
  • Voyager Technologies is seeking a skilled cleared -Systems Administrator to manage and maintain our enterprise IT infrastructure.
  • You will be responsible for ensuring the stability, security, and efficiency of our systems spanning cloud services, endpoint management, i…

Propeller

Jun 19
IT Systems Administrator
Denver, CO, United States mid Full Time $80k-92.5k/yr
  • Your Responsibilities Deliver exceptional suppor t: Manage day-to-day user requests and IT office support in Denver, troubleshooting comple…
  • Mature our systems : Lead independent projects to upgrade our MDM solutions and security protocols, ensuring our fleet of laptops…

Crocs, Inc.

Jun 19
Manager, IT Systems Administration & Operations
Broomfield, CO, United States mid $105k-125k/yr
  • This role ensures the stability, security, and compliance of end-user environments while advancing operational maturity through automation,…
  • Maintain and support core IT infrastructure, including servers (Windows/Linux), Firewall upgrades, Active Directory, DNS, DHCP, file/print…

TEKsystems

Jun 19
Systems Administrator
Lakewood, CO, United States mid Full Time $92k-102k/yr
  • This role is responsible for application configuration, user support, troubleshooting, reporting, and ongoing system optimization.
  • As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to d…

00100 LEIDOS, INC.

Jun 18
Senior Systems Administrator
Aurora, CO, United States senior Full Time
  • Active Top Secret/SCI with Polygraph Clearance Required Active Directory Administration DNS, DHCP, DFS, LDAP Windows 10, Server 2012, Serve…
  • Primary Responsibilities & Duties: System Administrative duties to include management of Windows and Linux workstations on EVD and physical…

CesiumAstro

Jun 18
Linux Administrator II
Westminster, CO, United States mid Full Time $32.75-38.71/hr
  • This role is responsible for administering and maintaining Linux-based environments that support mission-critical engineering, testing, int…
  • Knowledge of Linux systems administration principles and enterprise infrastructure support Understanding of networking fundamentals includi…

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Datadoghq

Jun 15
Federal Support Engineer 3 | Datadog Careers
Denver, CO, United States entry
  • Federal Support Engineer 3 | Datadog Careers Careers Welcome Culture Workplace Benefits Candidate Experience Inclusion Learning & Developme…
  • Handle urgent escalation cases that may result in customer-facing troubleshooting calls, and internal or external incident management Becom…

Simplesense

Jun 12
Control System Integration Specialist
Denver, CO, United States mid
  • Control System Integration Specialist Location: Denver, CO (Hybrid), San Antonio, TX (Hybrid), Brooklyn, NY or Remote (US Based) About the…
  • What You Bring Required Qualifications: Experience: 5+ years in Windows Systems Engineering or advanced Systems Administration, specificall…

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Huntington

Jun 12
Mainframe Systems Engineer III
Denver, CO, United States mid Full Time
  • The candidate must have the following skills: Advanced or expert level SMP/E experience Debugging and tuning experience Creation of detaile…
  • Confirms that application and business requirements have been translated into technical definitions, reference models, blueprints, and play…

Denver Broncos and Stadium Management Company

Jun 11
Senior Network Administrator
Englewood, CO, United States senior $100k-110k/yr
  • The Senior Network Administrator serves as a technical leader and escalation point for complex network challenges, helping drive continuous…
  • You will partner closely with Systems Administration, Cybersecurity, and Game Technology teams to ensure a highly available and scalable ne…

EchoStar

Jun 4
Lead Network Engineer
Littleton, CO, United States senior Full Time
  • Skills, Experience and Requirements Core Skills and Competencies (What you’ll bring): Mastery of service provider networking protocols incl…
  • Maintenance of mission-critical network reliability and 24x7 production uptime through advanced hands-on leadership and support.

Medix Staffing Solutions

Jun 3
Systems Administrator
Denver, CO, United States mid Contract $45-50/hr
  • Systems Integration: Partner with IT networks to design and troubleshoot Single Sign-On (SSO) configurations and automated compliance-routi…
  • Job Summary We are seeking a highly technical, architect-level Learning Management System (LMS) Administrator for our client to execute a…

Johnson Controls International

Jun 2
Security Remote Operations Technician 3
Aurora, CO, United States mid
  • Provide remote diagnostic and technical reporting/support for customers, Johnson Controls technicians and authorized contractors.
  • Objectively and proactively work on Remote Projects and Service Request.
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