System Administrator (Red Hat / Linux)

TISTA Science and Technology Corporation; Hines (IL); On-site; USD 70,000 - 100,000; Full time

Benefits offered by this job

Healthcare Benefits

Remote Working Options

Paid Time Off

Training/Certification opportunities

401K Match

Professional development reimbursement

Employee Assistance Program

Paid Holidays

Military Leave

Job summary

TISTA Science and Technology Corporation is seeking a System Administrator to join our on-site team at the Hines IT Center, IL.

You will manage Red Hat Linux servers, implement patching, monitor health, automate tasks with Bash/Python/Ansible, and support virtualization and cloud environments. The ideal candidate has RHCSA/RHCE or cloud certs, LDAP/AD integration experience, and a strong focus on security compliance and incident response.

Qualifications

• Experience with Red Hat Enterprise Linux administration.
• Familiar with Linux commands, services, and troubleshooting.
• Experience with shell scripting and automation tools.
• Understanding of TCP/IP networking, firewalls, and security.
• Experience with system monitoring tools.
• Knowledge of LDAP, Active Directory integration, and authentication methods.
• Familiarity with SAN/NAS storage technologies.
• Experience with virtualization and cloud platforms.
• Experience with containers and orchestration technologies.

Responsibilities

• Install, configure, and maintain Red Hat Linux servers.
• Monitor server performance, availability, and system health.
• Perform OS patching, upgrades, and vulnerability remediation.
• Configure and manage user accounts, permissions, and authentication.
• Troubleshoot Linux operating system, network, and application issues.
• Implement backup, disaster recovery, and high availability solutions.
• Manage storage systems, file systems, and LVM configurations.
• Configure and maintain DNS, NFS, SSH, FTP, Apache, and related services.
• Support virtualization technologies such as VMware, vSphere or Red Hat Virtualization.
• Develop shell scripts and automation using Bash, Python, or Ansible.
• Maintain system security compliance and audit standards.
• Support cloud environments such as Amazon Web Services, Microsoft Azure.
• Create and maintain technical documentation and operational procedures.
• Participate in on‑call support rotations and incident response activities.

Skills

Red Hat Linux administration

Linux troubleshooting

Shell scripting & automation

TCP/IP networking

System monitoring

LDAP/AD integration

SAN/NAS storage

Virtualization & cloud

Containers & orchestration

Education

Bachelor’s degree in computer science or related field

Eight years of additional relevant experience may be substituted for education

Tools

VMware

Ansible

Python

AWS/Azure

Job description

Overview

TISTA Science and Technology is seeking a System Administrator to join our growing team.

At TISTA, you’ll do meaningful, mission‑driven work that improves lives alongside teammates you trust and leaders who are transparent and supportive. We invest in your learning and internal mobility so you can build a career that keeps advancing. We’re proud to serve and hire Veterans, and we put people first in everything we do.

TISTA associates enjoy above Industry Healthcare Benefits, Remote Working Options, Paid Time Off, Training/Certification opportunities, Healthcare Savings Account & Flexible Savings Account, Paid Life Insurance, Short-term & Long-term Disability, 401K Match, Professional development reimbursement, Employee Assistance Program, Paid Holidays, Military Leave, and much more!

Responsibilities

• Install, configure, and maintain Red Hat Linux servers.
• Monitor server performance, availability, and system health.
• Perform OS patching, upgrades, and vulnerability remediation.
• Configure and manage user accounts, permissions, and authentication.
• Troubleshoot Linux operating system, network, and application issues.
• Implement backup, disaster recovery, and high availability solutions.
• Manage storage systems, file systems, and LVM configurations.
• Configure and maintain DNS, NFS, SSH, FTP, Apache, and related services.
• Support virtualization technologies such as VMware, vSphere or Red Hat Virtualization.
• Develop shell scripts and automation using Bash, Python, or Ansible.
• Maintain system security compliance and audit standards.
• Support cloud environments such as Amazon Web Services, Microsoft Azure.
• Create and maintain technical documentation and operational procedures.
• Participate in on‑call support rotations and incident response activities.

Qualifications

• Experience with Red Hat Enterprise Linux administration.
• Knowledge of Linux commands, services, and troubleshooting.
• Experience with shell scripting and automation tools.
• Understanding of TCP/IP networking, firewalls, and security.
• Experience with system monitoring tools.
• Knowledge of LDAP, Active Directory integration, and authentication methods.
• Familiarity with SAN/NAS storage technologies.
• Experience with virtualization and cloud platforms.
• Experience with containers and orchestration technologies.

Preferred Skills

• Basic Shell scripting.
• Basic Networking Skills.
• CI/CD pipelines and DevOps methodologies.
• Cloud-hosted Linux administration exposure is preferred where hybrid environments are in scope.

Preferred Certifications

• Red RHSCA
• RHCE
• Cloud certifications (AWS/Azure)

Education

• Bachelor’s degree in computer science, electronics engineering or related technical discipline.
• Eight (8) years of additional relevant experience may be substituted for education.

Clearance

• The ability to pass a Tier 2/Moderate Background Investigation.

Location

• Department of Veteran's Affairs (100% On-site)
• Monday - Friday (8:00 AM - 4:30 PM EST Time)
• Hines Information Technology Center (HITC)

5000 S Fifth Avenue,

Hines, IL 60141