System Administrator Jobs in Colorado
System Administrator jobs in Colorado are consistently active, with strong demand concentrated in Denver's technology corridor, Colorado Springs' defense and federal contracting sector, and Boulder's research and startup ecosystem. Major employers with lasting footprints in the state include Lockheed Martin, DISH Network, and Centura Health, each maintaining large IT infrastructure teams. The most sought-after specialties in Colorado listings are cloud infrastructure, Active Directory and identity management, and network security administration. Scan the live roles below and apply to whichever ones fit.
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The Junior Cybersecurity Systems Administrator is responsible for the administration, security, configuration, maintenance, and sustainment of enterprise information systems supporting Department of Defense (DoD) environments. This position combines hands-on systems administration with cybersecurity responsibilities to ensure enterprise systems remain secure, available, properly configured, and compliant with applicable DoD cybersecurity requirements.
The successful candidate will administer and secure enterprise servers, endpoints, user accounts, network-connected systems, applications, and supporting infrastructure across classified and unclassified environments. Responsibilities include system configuration and maintenance, cybersecurity hardening, patch management, vulnerability remediation, configuration management, identity and access management, system monitoring, troubleshooting, and incident response support.
The Cybersecurity Systems Administrator will work closely with cybersecurity engineers, network administrators, system administrators, Information System Security personnel, and government customers on Peterson SFB to maintain secure and reliable enterprise environments. The position requires practical experience supporting DoD information systems and the ability to implement cybersecurity requirements while maintaining system availability and mission effectiveness.
The candidate should be comfortable operating in mission-critical environments where cybersecurity, configuration control, system availability, and timely resolution of technical issues are essential to mission success.
Duties:
- Administer, configure, maintain, and secure enterprise information systems supporting DoD mission environments.
- Perform day-to-day system administration of Windows and other enterprise operating systems and services.
- Install, configure, update, and maintain enterprise applications, servers, endpoints, and supporting infrastructure.
- Implement system-hardening requirements and maintain compliance with applicable DISA Security Technical Implementation Guides (STIGs).
- Perform operating system, application, and security patching in accordance with established cybersecurity and configuration-management processes.
- Review, analyze, track, and remediate system vulnerabilities and cybersecurity findings.
- Implement and validate Information Assurance Vulnerability Alerts (IAVAs), Information Assurance Vulnerability Bulletins (IAVBs), and other DoD-directed cybersecurity updates.
- Support vulnerability scanning, analyze scan results, remediate identified findings, and validate corrective actions.
- Maintain system configuration baselines and support formal configuration-management and change-control processes.
- Administer user accounts, permissions, authentication mechanisms, and access controls in accordance with least-privilege and DoD security requirements.
- Support Active Directory, Group Policy, enterprise identity services, and related authentication and authorization technologies.
- Monitor system health, security status, logs, performance, capacity, and availability.
- Investigate and resolve system, application, authentication, network connectivity, and cybersecurity issues.
- Review system and security logs to identify anomalous activity, system failures, unauthorized changes, and potential cybersecurity incidents.
- Support cybersecurity incident identification, investigation, containment, remediation, and recovery activities.
- Support operation and maintenance of classified and unclassified DoD information systems.
- Support secure movement and handling of information between authorized systems and security domains.
- Implement and maintain security controls in support of Risk Management Framework (RMF) and system authorization requirements.
- Develop and maintain system documentation, configuration records, standard operating procedures, technical guides, and cybersecurity artifacts.
- Support system upgrades, technology refreshes, application deployments, and integration of new hardware and software.
- Coordinate with cybersecurity, network, systems, and security personnel to resolve technical and compliance issues.
- Support government customers during cybersecurity inspections, assessments, audits, and authorization activities.
- Provide technical guidance and mentoring to junior system administrators and support personnel as required.
- 3-5+ years of relevant experience in systems administration, cybersecurity, enterprise IT, network administration, or related technical disciplines.
- Demonstrated hands-on experience administering enterprise information systems.
- Experience administering and securing Microsoft Windows Server and Windows enterprise environments.
- Experience with Active Directory, Group Policy, account administration, permissions, authentication, and access-control technologies.
- Experience implementing cybersecurity hardening, system security configurations, operating system patches, and application updates.
- Experience applying and maintaining DISA STIG requirements or comparable system-hardening standards.
- Experience identifying, tracking, remediating, and validating system vulnerabilities.
- Experience supporting enterprise vulnerability-management and patch-management processes.
- Working knowledge of DoD cybersecurity requirements and information assurance practices.
- Experience with system configuration management, configuration baselines, and formal change-control processes.
- Working knowledge of TCP/IP, enterprise networking, DNS, DHCP, network services, and common enterprise protocols.
- Experience reviewing system logs and technical data to identify and troubleshoot system and cybersecurity issues.
- Experience troubleshooting enterprise operating systems, applications, authentication, network connectivity, and security-related problems.
- Experience developing and maintaining system documentation, procedures, configuration records, and cybersecurity artifacts.
- Ability to work effectively with cybersecurity engineers, network administrators, system administrators, security personnel, and government customers.
- Experience supporting DoD, federal government, or other mission-critical enterprise information systems.
- Travel: 25%
- Bachelor’s degree in Cybersecurity, Information Technology, Computer Science, Information Systems, Engineering, or a related technical discipline; additional relevant technical experience may be considered in lieu of a degree.
- DoD 8140/8570 compliant certification appropriate for assigned system administration and cybersecurity responsibilities.
- Ability to obtain and maintain a TS/SCI security clearance required for assigned programs.
- DOD IAT/IAM Level II certification.
- Microsoft, VMware, Cisco, Red Hat, or other relevant enterprise system administration certification.
- Cloud administration or cloud security certification.
- Additional certifications applicable to DoD systems administration, cybersecurity, or information assurance responsibilities.
Benefits offered can be found here: Benefits PeopleTec. In compliance with Colorado's Equal Pay for Equal Work Act, the salary range for this role is $80,000.00 to $105,000.00; however, PeopleTec considers several factors when extending an offer, including but not limited to the role and associated responsibilities, a candidate's work experience, education/training, and critical skills.
This position description does not represent a current vacancy. However, it is intended to identify and engage candidates whose skills and experience align with roles that frequently become available at PeopleTec. Individuals who express interest may be considered for future opportunities as they arise.
PeopleTec, Inc. is an employee-owned small business founded in Huntsville, AL that provides exceptional customer support by employing and retaining a highly skilled workforce.
Culture: The name "PeopleTec" was deliberately chosen to remind us of our core value system - our people. Our company's foundation was built on placing our employees and customers first. With an award-winning atmosphere, we have matured into a company that boasts the best and brightest across multiple technical fields.
Career: At PeopleTec, we value your long-term goals. Whether it's through our continuing-education opportunities, our robust training programs, or our "People First" benefits package, PeopleTec truly believes that our best investments are our people.
Come Experience It.
EEO Statement
PeopleTec, Inc. is an Equal Employment Opportunity employer and provides reasonable accommodation for qualified individuals with disabilities and disabled veterans in its job application procedures. If you have any difficulty using our online system and you need an accommodation due to a disability, you may use the following email address, ApplicationHelp@peopletec.com and/or phone number (256.319.3800) to contact us about your interest in employment with PeopleTec, Inc.
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, genetic information, citizenship, ancestry, marital status, protected veteran status, disability status or any other status protected by federal, state, or local law. PeopleTec, Inc. participates in E-Verify.
The Junior Cybersecurity Systems Administrator is responsible for the administration, security, configuration, maintenance, and sustainment of enterprise information systems supporting Department of Defense (DoD) environments. This position combines hands-on systems administration with cybersecurity responsibilities to ensure enterprise systems remain secure, available, properly configured, and compliant with applicable DoD cybersecurity requirements.
The successful candidate will administer and secure enterprise servers, endpoints, user accounts, network-connected systems, applications, and supporting infrastructure across classified and unclassified environments. Responsibilities include system configuration and maintenance, cybersecurity hardening, patch management, vulnerability remediation, configuration management, identity and access management, system monitoring, troubleshooting, and incident response support.
The Cybersecurity Systems Administrator will work closely with cybersecurity engineers, network administrators, system administrators, Information System Security personnel, and government customers on Peterson SFB to maintain secure and reliable enterprise environments. The position requires practical experience supporting DoD information systems and the ability to implement cybersecurity requirements while maintaining system availability and mission effectiveness.
The candidate should be comfortable operating in mission-critical environments where cybersecurity, configuration control, system availability, and timely resolution of technical issues are essential to mission success.
Duties:
- Administer, configure, maintain, and secure enterprise information systems supporting DoD mission environments.
- Perform day-to-day system administration of Windows and other enterprise operating systems and services.
- Install, configure, update, and maintain enterprise applications, servers, endpoints, and supporting infrastructure.
- Implement system-hardening requirements and maintain compliance with applicable DISA Security Technical Implementation Guides (STIGs).
- Perform operating system, application, and security patching in accordance with established cybersecurity and configuration-management processes.
- Review, analyze, track, and remediate system vulnerabilities and cybersecurity findings.
- Implement and validate Information Assurance Vulnerability Alerts (IAVAs), Information Assurance Vulnerability Bulletins (IAVBs), and other DoD-directed cybersecurity updates.
- Support vulnerability scanning, analyze scan results, remediate identified findings, and validate corrective actions.
- Maintain system configuration baselines and support formal configuration-management and change-control processes.
- Administer user accounts, permissions, authentication mechanisms, and access controls in accordance with least-privilege and DoD security requirements.
- Support Active Directory, Group Policy, enterprise identity services, and related authentication and authorization technologies.
- Monitor system health, security status, logs, performance, capacity, and availability.
- Investigate and resolve system, application, authentication, network connectivity, and cybersecurity issues.
- Review system and security logs to identify anomalous activity, system failures, unauthorized changes, and potential cybersecurity incidents.
- Support cybersecurity incident identification, investigation, containment, remediation, and recovery activities.
- Support operation and maintenance of classified and unclassified DoD information systems.
- Support secure movement and handling of information between authorized systems and security domains.
- Implement and maintain security controls in support of Risk Management Framework (RMF) and system authorization requirements.
- Develop and maintain system documentation, configuration records, standard operating procedures, technical guides, and cybersecurity artifacts.
- Support system upgrades, technology refreshes, application deployments, and integration of new hardware and software.
- Coordinate with cybersecurity, network, systems, and security personnel to resolve technical and compliance issues.
- Support government customers during cybersecurity inspections, assessments, audits, and authorization activities.
- Provide technical guidance and mentoring to junior system administrators and support personnel as required.
- 3-5+ years of relevant experience in systems administration, cybersecurity, enterprise IT, network administration, or related technical disciplines.
- Demonstrated hands-on experience administering enterprise information systems.
- Experience administering and securing Microsoft Windows Server and Windows enterprise environments.
- Experience with Active Directory, Group Policy, account administration, permissions, authentication, and access-control technologies.
- Experience implementing cybersecurity hardening, system security configurations, operating system patches, and application updates.
- Experience applying and maintaining DISA STIG requirements or comparable system-hardening standards.
- Experience identifying, tracking, remediating, and validating system vulnerabilities.
- Experience supporting enterprise vulnerability-management and patch-management processes.
- Working knowledge of DoD cybersecurity requirements and information assurance practices.
- Experience with system configuration management, configuration baselines, and formal change-control processes.
- Working knowledge of TCP/IP, enterprise networking, DNS, DHCP, network services, and common enterprise protocols.
- Experience reviewing system logs and technical data to identify and troubleshoot system and cybersecurity issues.
- Experience troubleshooting enterprise operating systems, applications, authentication, network connectivity, and security-related problems.
- Experience developing and maintaining system documentation, procedures, configuration records, and cybersecurity artifacts.
- Ability to work effectively with cybersecurity engineers, network administrators, system administrators, security personnel, and government customers.
- Experience supporting DoD, federal government, or other mission-critical enterprise information systems.
- Travel: 25%
- Bachelor’s degree in Cybersecurity, Information Technology, Computer Science, Information Systems, Engineering, or a related technical discipline; additional relevant technical experience may be considered in lieu of a degree.
- DoD 8140/8570 compliant certification appropriate for assigned system administration and cybersecurity responsibilities.
- Ability to obtain and maintain a TS/SCI security clearance required for assigned programs.
- DOD IAT/IAM Level II certification.
- Microsoft, VMware, Cisco, Red Hat, or other relevant enterprise system administration certification.
- Cloud administration or cloud security certification.
- Additional certifications applicable to DoD systems administration, cybersecurity, or information assurance responsibilities.
Benefits offered can be found here: Benefits PeopleTec. In compliance with Colorado's Equal Pay for Equal Work Act, the salary range for this role is $80,000.00 to $105,000.00; however, PeopleTec considers several factors when extending an offer, including but not limited to the role and associated responsibilities, a candidate's work experience, education/training, and critical skills.
This position description does not represent a current vacancy. However, it is intended to identify and engage candidates whose skills and experience align with roles that frequently become available at PeopleTec. Individuals who express interest may be considered for future opportunities as they arise.
PeopleTec, Inc. is an employee-owned small business founded in Huntsville, AL that provides exceptional customer support by employing and retaining a highly skilled workforce.
Culture: The name "PeopleTec" was deliberately chosen to remind us of our core value system - our people. Our company's foundation was built on placing our employees and customers first. With an award-winning atmosphere, we have matured into a company that boasts the best and brightest across multiple technical fields.
Career: At PeopleTec, we value your long-term goals. Whether it's through our continuing-education opportunities, our robust training programs, or our "People First" benefits package, PeopleTec truly believes that our best investments are our people.
Come Experience It.
EEO Statement
PeopleTec, Inc. is an Equal Employment Opportunity employer and provides reasonable accommodation for qualified individuals with disabilities and disabled veterans in its job application procedures. If you have any difficulty using our online system and you need an accommodation due to a disability, you may use the following email address, ApplicationHelp@peopletec.com and/or phone number (256.319.3800) to contact us about your interest in employment with PeopleTec, Inc.
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, genetic information, citizenship, ancestry, marital status, protected veteran status, disability status or any other status protected by federal, state, or local law. PeopleTec, Inc. participates in E-Verify.
See All 23 System Administrator Jobs in Colorado
Find roles in Colorado that match your experience and apply in just a few clicks.
Find System Administrator JobsSystem Administrator Jobs by City in Colorado
Where Colorado roles are concentrated, by current openings.
System Administrator Job Market in Colorado
A snapshot from current Colorado openings, updated as new roles post.
Who's Hiring
Top Industries Hiring
- Technology & Software
What Colorado Employers Look For
The qualifications that appear most often in system administrator jobs across Colorado.
- Bachelor's degree in information technology, computer science, or a related field
- CompTIA Security+ or Network+ certification preferred for Colorado defense and government roles
- Hands-on experience administering Windows Server and Active Directory environments
- Proficiency with virtualization platforms such as VMware vSphere or Microsoft Hyper-V
- Experience supporting cloud environments including Microsoft Azure or AWS
- Strong troubleshooting skills for network, server, and end-user support issues
System Administrator Jobs in Colorado: Frequently Asked Questions
How do you become a system administrator in Colorado?
Colorado does not require a state-issued license to work as a system administrator, so the path runs through education and vendor credentials. Most employers expect a bachelor's degree in information technology or computer science, though an associate degree paired with strong certifications can open entry-level doors. CompTIA A+, Network+, and Security+ are widely recognized starting points, and Microsoft or AWS certifications carry particular weight with Colorado's defense contractors and healthcare systems.
How much do system administrators make in Colorado?
System administrators in Colorado earn a median of about $103,370 a year, based on May 2025 Bureau of Labor Statistics wage data, ranging from around $74,110 for the lowest 10% to over $155,050 for the top 10%. Pay rises with experience, specialty, and employer.
Which companies hire system administrators in Colorado?
Employers hiring system administrators in Colorado right now include Lockheed Martin, SAIC, and KBR, based on current listings on Migrate Mate as of September 2026. Colorado's concentration of federal contractors, aerospace firms, and large regional health networks means steady, year-round demand rather than seasonal hiring spikes.
Which Colorado cities have the most system administrator jobs?
The cities with the most system administrator openings in Colorado are Colorado Springs, Littleton, and Denver. Denver dominates because it anchors the state's technology, finance, and healthcare industries, while Colorado Springs draws significant volume from its dense cluster of military installations and defense contractors, and Boulder's university and research institutions generate consistent demand for infrastructure support.
Are there remote system administrator jobs in Colorado?
Yes, but they're less common than in purely analytical roles because system administrators are frequently needed on-site to manage physical hardware, data center equipment, and local network infrastructure. About 27% of system administrator openings tied to Colorado are remote or hybrid as of September 2026, with remote work most often attached to cloud-focused or monitoring-heavy positions rather than roles with hands-on server room responsibilities.
How can I get hired as a system administrator in Colorado with little or no experience?
The most realistic entry path is through a help desk or IT support technician role, which Colorado's large employers in healthcare, higher education, and state government hire for regularly and use as a pipeline into system administration. Institutions like UCHealth, the University of Colorado system, and the Colorado Department of Personnel and Administration post associate and entry-level IT positions that build the hands-on exposure hiring managers look for. Earning CompTIA A+ and Network+ before applying gives candidates a measurable edge even without professional experience.
Where can I find and apply to system administrator jobs in Colorado?
You can find and apply to system administrator jobs in Colorado on Migrate Mate, which lists current Colorado openings updated in real time. Search the listings to find roles that match your experience level and location preference, then apply directly to the ones that fit.
See All 23 System Administrator Jobs in Colorado
Find roles in Colorado that match your experience and apply in just a few clicks.
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