Sr. Systems Administrator

Company: Galactic Network Integrators, Inc.
Location: Chicago
Posted on: May 24, 2025

Job Description:

GNI is looking for an experienced system administrator with a background in configuring, maintaining, and troubleshooting cross-domain systems. The successful candidate will work within a cross-functional team to provide hands-on experience designing, installing, configuring, monitoring, and maintaining enterprise systems. The SA must have a team-oriented and customer-focused attitude due to multiple locations and various end users.Primary responsibilities may include:

• Oversee the execution of security measures called out in the security plan to include timely scans of network resources and software patches.
• Provide effective provisioning, installation/configuration, operation, and maintenance of production Linux Servers in a VMWare Virtualized Environment.
• Responsible for daily system monitoring, security, server health, resources, and log management of Linux and Windows systems.
• Troubleshooting and performing root cause analysis. This includes troubleshooting any and all issues with system configurations, backups, files systems, and user access.
• Support RHEL platforms hosting applications, operations, and sustainment systems, and ACAS and other security tools.
• Interface with network engineers, systems engineers, and subject matter experts in the performance of your duties.
• Troubleshoot hardware, networking, and software problems in a multi-node environment.
• Configure and install operating system and application software on bare-metal computers, virtual machines, or containers.
• Participate in an on-call rotation to provide support for off-hours issues.
• Create and maintain software documentation and updates.
• Work with a highly technical team to perform evaluation tests.Required Experience:
  • A Bachelor's degree in Computer Engineering or related field.
  • Minimum 10 years' experience focused on Linux/UNIX system administration.
  • Demonstrated ability to effectively manage daily activities and priorities for personnel.
  • Direct experience with network topology, data flows, firewalls, routers, and switches.Desired Experience:
    • Working knowledge of virtualization, VMWare, AWS Cloud administration, remote desktop, remote computer management, or equivalent.
    • Familiarity with Palo Alto firewalls, Cisco routers and switches, WireShark, and CommVault.
    • Ability to problem solve and think critically sometimes independent of significant experience or documentation of the problem area.Galactic Network Integrators, Inc. - 505-508-5401
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Keywords: Galactic Network Integrators, Inc., West Allis , Sr. Systems Administrator, IT / Software / Systems , Chicago, Wisconsin