Computer Network and Systems Administrator

Kavaliro; Fayetteville (NC); On-site; USD 90,000 - 140,000; Full time

Job summary

Kavaliro seeks a Systems Administrator / Network Infrastructure Engineer to support the Ground Intelligence Support Activity (GISA). The role focuses on securing and managing enterprise Windows and Linux systems, NAS, AD, and DoD enclave environments in a mission-critical, 24/7/365 setting.

Responsibilities include patching, deployment via SCCM/MECM/MDT, AD CS/CRLs, backups, and implementing cybersecurity controls, with emphasis on Cisco ISE, TACACS+ and resilient network designs.

Qualifications

• Experience architecting IP-based network environments and documenting topology.
• Experience restoring network and system outages.
• Strong cybersecurity practices and secure systems administration.
• Experience with Active Directory services and authentication solutions.

Responsibilities

• Administer Windows and Linux OS, patching and updates.
• Manage NAS environments and backup/recovery tasks.
• Administer AD objects, users, groups, and OUs.
• Develop deployment task sequences using SCCM/MECM and MDT.
• Support AD CS and CRLs; ensure certificate security.
• Maintain highly available networks for 24/7 operations.
• Implement and maintain cybersecurity controls and vulnerability mitigation.
• Troubleshoot network, server, and infrastructure issues.

Skills

IP network design

Troubleshooting outages

Cybersecurity best practices

AD administration

Education

Bachelor's degree in IT/CS/Engineering

High School Diploma or GED

Microsoft MCSE/MCSA or equivalent

Tools

Cisco ISE

TACACS+

Job description

Kavaliro is seeking a highly skilled Systems Administrator / Network Infrastructure Engineer to support the Ground Intelligence Support Activity (GISA). GISA is responsible for the architecture, implementation, operation, and sustainment of critical global communications infrastructure supporting the Department of the Army on behalf of the U.S. Army G-2.

The successful candidate will play a key role in managing and securing enterprise systems and network environments that support 24/7/365 mission operations within highly secure Department of Defense environments.

Essential Duties and Responsibilities

• Administer Windows and Linux operating systems, including patch management and system updates.
• Manage and maintain Network Attached Storage (NAS) environments.
• Administer Active Directory objects, users, groups, and organizational units (OUs).
• Develop and maintain system deployment task sequences utilizing Microsoft SCCM/MECM and Microsoft Deployment Toolkit (MDT).
• Support and maintain Active Directory Certificate Services (AD CS) and Certificate Revocation Lists (CRLs).
• Perform backup, recovery, and restoration activities for complex enterprise systems.
• Maintain highly available operational networks supporting 24/7/365 mission requirements.
• Implement and maintain infrastructure and cybersecurity controls, including advanced vulnerability detection and mitigation capabilities.
• Troubleshoot and resolve network, server, and infrastructure issues to ensure mission continuity.

Required Qualifications

• Experience architecting and designing IP-based network environments, including network topology development and documentation.
• Experience troubleshooting and restoring network and system outages.
• Experience implementing and managing Cisco Identity Services Engine (ISE) and TACACS+ authentication solutions.
• Experience designing, deploying, and supporting DoD enclave environments, including:
• Compute infrastructure
• Routing and switching
• Firewalls
• Network services
• Experience with Cisco Spine-and-Leaf network architectures.
• Knowledge of multi-domain network architectures, including data center, WAN, LAN, and virtualized environments.
• Strong understanding of cybersecurity best practices and secure systems administration.

Education & Certifications

• High School Diploma or GED required.

Preferred Qualifications

• Experience conducting technical security assessments utilizing ACAS, SCAP, and related vulnerability scanning tools.
• Experience supporting enterprise server, storage, software, and application service environments.
• Experience implementing infrastructure automation using Ansible and/or Terraform.
• Experience building, administering, and maintaining SolarWinds Network Performance Monitor (NPM) and IP Address Manager (IPAM).
• Bachelor's degree in Information Technology, Computer Science, Engineering, or a related field.
• Microsoft MCSA, MCSE, or equivalent Microsoft certification.

Clearance & Additional Requirements

• Active DoD Top Secret/SCI clearance required.
• Must be eligible for a Counterintelligence (CI) Polygraph.
• CompTIA Security+ certification required, or ability to obtain within a designated period following hire.
• Ability to work in a mission-focused environment supporting critical national defense operations.