Network/Systems Administrator with Security Clearance

Network / Systems Administrator - Mid-Level Peterson Space Force Base, Colorado Springs, CO | Salary: $100,000 - $123,000 | Active TS/SCI Clearance with CI Polygraph Required Caribou Thunder is seeking a Mid-Level Network / Systems Administrator to support the Maverick program's Collapse team at Peterson Space Force Base. This position supports the implementation, administration, maintenance, and security of mission-critical DoD IT infrastructure, including enterprise networks, server environments, and virtualized systems.

The successful candidate will bring hands-on experience managing network devices, Windows and Linux server infrastructure, cybersecurity requirements, and enterprise IT operations. Responsibilities include configuring and troubleshooting routers, switches, and firewalls; maintaining secure server environments; automating administrative tasks; and ensuring reliable network connectivity and system availability.

The ideal candidate combines strong technical troubleshooting skills with experience supporting secure DoD environments, maintaining infrastructure compliance, and collaborating with engineering and operations teams. A Day in the Life - What you'll do

• Implement, configure, administer, and maintain DoD network and systems infrastructure supporting mission operations.
• Configure, manage, and troubleshoot network equipment, including routers, switches, firewalls, and associated infrastructure.
• Administer and maintain Windows and Linux server environments, ensuring system availability, performance, and operational reliability.
• Monitor network and system performance, investigate connectivity issues, and implement corrective actions to maintain reliable infrastructure operations.
• Manage network services and protocols, including TCP/IP, DNS, DHCP, and VPN connectivity.
• Apply network security configurations, system updates, patches, and security hardening measures to maintain compliance with DoD cybersecurity requirements.
• Monitor infrastructure for potential security issues, configuration deficiencies, and operational anomalies.
• Develop and maintain scripts using PowerShell, Python, or similar languages to automate system administration, configuration management, and recurring maintenance activities.
• Support virtualization environments, including VMware and Hyper-V, to maintain virtual servers and infrastructure resources.
• Implement and maintain backup, recovery, and disaster recovery capabilities to support continuity of operations.
• Troubleshoot complex hardware, software, network, and operating system issues, identifying root causes and coordinating resolution.
• Maintain accurate technical documentation, system configurations, network diagrams, procedures, and troubleshooting records.
• Collaborate with cybersecurity, network engineering, systems administration, and operations personnel to resolve infrastructure issues and support mission requirements.
• Support infrastructure upgrades, technology refreshes, system deployments, and ongoing sustainment activities.
• Ensure IT infrastructure remains aligned with applicable security policies, technical standards, and program requirements.
• Provide technical support and communicate system status, operational issues, and recommended solutions to relevant stakeholders. Required Qualifications
• Bachelor's degree in a related technical field with 5-8 years of relevant experience.
• At least one of the following active industry certifications:
• Cisco Certified Network Associate (CCNA).
• MCAA.
• CompTIA Cloud+.
• CompTIA Security+.
• Active U.S. Government Top Secret/Sensitive Compartmented Information (TS/SCI) clearance required upfront.
• Ability to successfully pass a Counterintelligence (CI) polygraph.
• Experience implementing, managing, and maintaining DoD IT infrastructure.
• Hands-on experience configuring and supporting network infrastructure, including routers, switches, and firewalls.
• Experience administering Windows and Linux server environments.
• Understanding of network security principles, infrastructure monitoring, system updates, and security compliance requirements.
• Proficiency with network protocols and services, including TCP/IP, DNS, DHCP, and VPNs.
• Experience with scripting languages such as PowerShell or Python for automation and systems administration.
• Experience supporting virtualization technologies, including VMware and/or Hyper-V.
• Strong troubleshooting and problem-solving capabilities across network, server, and infrastructure environments.
• Experience maintaining technical documentation, system configurations, and operational procedures.
• Strong written and verbal communication skills and the ability to collaborate effectively with technical teams and organizational stakeholders.

Preferred Qualifications

• Experience supporting DoD or other classified government IT environments.
• Experience maintaining secure network and server infrastructure in accordance with DoD cybersecurity policies and standards.
• Experience with network monitoring, performance analysis, and infrastructure security monitoring tools.
• Experience with automated configuration management, scripting, and infrastructure maintenance.
• Familiarity with backup administration, disaster recovery planning, and continuity of operations.
• Experience supporting enterprise infrastructure upgrades, system deployments, and technology refresh initiatives.
• Experience troubleshooting complex network connectivity, virtualization, and Windows/Linux operating system issues.
• Experience working within multidisciplinary infrastructure, cybersecurity, and systems engineering teams. Security and Program Requirements
• Candidates must possess an active TS/SCI clearance before starting.
• Candidates must be able to successfully complete a CI polygraph.
• Following interviews, the ASC Facility Security Officer (FSO) will conduct a preliminary Special Access Program (SAP) prescreening directly with the candidate.
• The preliminary SAP prescreening must occur before ASC makes a final employment determination.
• Final selection and placement are subject to applicable program security and access requirements. Who is Caribou Thunder? Caribou Thunder is a HUBZone-certified small business providing advanced technical and engineering services to the U.S. Department of War and its mission partners. 35+ states and 20+ countries. We've delivered trusted solutions for over two decades - strengthening national readiness across missions on land, undersea, in the air, and throughout LEO, MEO, GEO, and deep space. Why Caribou Thunder? TEAM THUNDER - Mission Focused. Delivery Proven. Ready to Serve. Employee Advocacy Mission Proven Global Reach Skilled Teams Modern Tools Empowering Culture Our engineers and innovators ensure capability from sea floor to space frontier - delivering on time, maintaining compliance, and performing with precision in high-consequence environments. We specialize in Engineering Services, Cybersecurity, Software Development, Modeling & Simulation, Digital Engineering, and Artificial Intelligence - disciplines powering the nation's most complex technical missions. Employee Advocacy + Benefits Our people are the heart of Caribou Thunder. We invest in their growth, flexibility, and well-being - knowing their success drives ours.
• Premium Health, Dental & Vision Insurance
• 401(k) with 6% Company Match
• Flexible PTO & Work Schedule
• Education & Certification Reimbursement
• Support for Military Leave
• Work-Life Balance & Traditional Family Values Your future, your flexibility, your well-being - we invest in you. Apply and let's connect. Network / Systems Administrator - Mid-Level Peterson Space Force Base, Colorado Springs, CO | Salary: $100,000 - $123,000 | Active TS/SCI Clearance with CI Polygraph Required Caribou Thunder is seeking a Mid-Level Network / Systems Administrator to support the Maverick program's Collapse team at Peterson Space Force Base. This position supports the implementation, administration, maintenance, and security of mission-critical DoD IT infrastructure, including enterprise networks, server environments, and virtualized systems. The successful candidate will bring hands-on experience managing network devices, Windows and Linux server infrastructure, cybersecurity requirements, and enterprise IT operations. Responsibilities include configuring and troubleshooting routers, switches, and firewalls; maintaining secure server environments; automating administrative tasks; and ensuring reliable network connectivity and system availability. The ideal candidate combines strong technical troubleshooting skills with experience supporting secure DoD environments, maintaining infrastructure compliance, and collaborating with engineering and operations teams. A Day in the Life - What you'll do
• Implement, configure, administer, and maintain DoD network and systems infrastructure supporting mission operations.
• Configure, manage, and troubleshoot network equipment, including routers, switches, firewalls, and associated infrastructure.
• Administer and maintain Windows and Linux server environments, ensuring system availability, performance, and operational reliability.
• Monitor network and system performance, investigate connectivity issues, and implement corrective actions to maintain reliable infrastructure operations.
• Manage network services and protocols, including TCP/IP, DNS, DHCP, and VPN connectivity.
• Apply network security configurations, system updates, patches, and security hardening measures to maintain compliance with DoD cybersecurity requirements.
• Monitor infrastructure for potential security issues, configuration deficiencies, and operational anomalies.
• Develop and maintain scripts using PowerShell, Python, or similar languages to automate system administration, configuration management, and recurring maintenance activities.
• Support virtualization environments, including VMware and