Senior Linux SysAdmin: Virtualization, Storage & Security

Columbia Technology Partners, Inc; Corridor North (MD); On-site; USD 90,000 - 130,000; Full time

Job summary

Columbia Technology Partners, Inc. is seeking a System Administrator to support operation, maintenance, and reliability of internal and customer environments across both classified and unclassified systems.

This role is ideal for a Linux-focused administrator comfortable across virtualization, storage, identity, and networking rather than a single technology area. Expect responsibility for Linux servers, VMs, shared storage, and network infrastructure with emphasis on security and automation.

Qualifications

• 5+ years professional System Administrator experience.
• Strong Linux troubleshooting across virtualization, storage, identity, and network infrastructure.
• Active CompTIA Security+ certification.
• Experience with Oracle Linux and OLVM preferred.

Responsibilities

• Administer Oracle Linux 8/9/10 systems, including installation, configuration, patching, monitoring, and troubleshooting.
• Manage unclassified user virtual machines using OLVM.
• Maintain Oracle ZFS Storage Appliance (ZS11-2) shared storage for classified and unclassified environments.
• Support FreeIPA identity management and DNS services in the unclassified environment.
• Configure, maintain, and troubleshoot network connectivity and Cisco IOS-XE devices with network teams.
• Assess CVEs, track remediation activities, and support IAVM management.
• Develop and maintain scripts to support sysadmin tasks and automation.
• Document system configurations, procedures, incidents, and changes.
• Take ownership of system and network reliability to minimize downtime.

Skills

Linux systems administration

Scripting

Network troubleshooting

Documentation

CompTIA Security+

Cisco networking

Tools

Oracle Linux

OLVM

Oracle ZFS Storage Appliance

FreeIPA

Cisco IOS-XE

NetApp

Dell EMC

oVirt

Proxmox

VMware

Job description

Columbia Technology Partners, Inc. is seeking a System Administrator to support operation, maintenance, and reliability of internal and customer environments across both classified and unclassified systems.

This role is ideal for a Linux-focused administrator comfortable across virtualization, storage, identity, and networking rather than a single technology area. Expect responsibility for Linux servers, VMs, shared storage, and network infrastructure with emphasis on security and automation.