Senior System Administrator

CALIBRE Systems, Inc.; Battle Creek (MI); On-site; USD 90,000 - 120,000; Full time

Job summary

CALIBRE Systems, inc. seeks a Senior Systems Administrator to support DLA operations in Battle Creek, MI.

You will ensure stable operation of in-house computer software systems and network connections for CAGE applications, planning, configuring, maintaining, and optimizing all network software and communication links. You will lead configuration and operation of CAGE information management systems, resolve end-user issues, perform capacity analysis, and drive automated tooling and scripts.

Qualifications

• Senior-level system administration experience.
• Experience with RMF/STIGs for secure configurations.
• Strong troubleshooting and automation skills.

Responsibilities

• Manage, maintain, and secure critical IT infrastructure (servers, networks, storage) to ensure high availability.
• Perform capacity planning, performance analysis, and optimization of CAGE applications.
• Develop automation scripts and procedures, mentor junior staff, and provide training as needed.
• Respond to incidents, apply patches, and support multiple locations as required.

Skills

System Administration

VMware

Linux

Windows

Active Directory

Scripting

Load Balancing

Vulnerability Management

Tools

VMware

Job description

CALIBRE Systems, inc. an employee-owned mission focused solutions and digital transformation company, is seeking a Senior Systems Administrator to help support work with DLA in Battle Creek, MI

This position ensures stable operation of the in-house computer software systems and network connections for the CAGE system of applications and capabilities. This includes planning, developing, installing, configuring, maintaining, supporting, and optimizing all network software and communication links. Organizes and directs the configuration and operation of CAGE information management systems. Analyzes and resolves end user software program and connectivity issues. Conducts capacity and performance analysis and provides system configuration change and upgrade recommendations. Increases system administrator efficiency and accuracy via the use of automated tools and scripts, develops system administrator procedures, and conducts system administrator training and skills assessment. When required, provides end user training. Provides recommendations on technology direction to align with business vision. Provides local and remote maintenance support to various operational systems deployed at more than one location. Support includes general maintenance, upgrades, and new installs of servers and applications. Directs the work of other system administrators to provide the day-to-day system administration to include system and resource optimization, and user assistance. Applies advanced technical knowledge of application networking, including load balancing applications, and ensuring fault tolerance. Performs vulnerability management.

The Senior System Administrator for this PWS manages, maintains, and secures critical IT infrastructure (servers, networks, storage) within secure environments, focusing on high availability, compliance

(STIGs/RMF), automation (scripting), advanced troubleshooting (AD, VMware, Linux/Windows), and providing senior-level support/mentorship, often involving documentation, patching, and responding to

incidents to ensure mission readiness.