Linux Systems Administrator

Integration Innovation•Huntsville, AL

18d

About The Position

i3 is seeking a Linux Systems Administrator to support an Army contract. The role provides technical expertise for information system components, infrastructure integration, and maintenance. The administrator supports Red Hat and Linux environments, helps end users and application teams resolve operational issues, and maintains reliable, secure, and compliant systems. The position also involves documentation, automation, storage support, performance monitoring, and collaboration across teams. Regular hours are 8:00 a.m. to 5:00 p.m., Monday through Friday. Additional hours may occasionally be required, and regular, punctual attendance is required.

Requirements

Five years of hands-on systems administration experience, with a strong emphasis on Linux/Red Hat and experience in Windows environments.
Expertise administering Red Hat Enterprise Linux, including troubleshooting, server operations, and supporting production workloads.
Proficiency in Linux system administration (RHEL preferred) and scripting such as Bash for task automation.
Solid experience with Ansible and Ansible Automation Platform for configuration management and automation.
Strong written and verbal communication skills, including experience creating clear documentation, processes, and procedures.
Ability to work effectively with end users, developers, and cross-functional teams to address operational needs.
Active Secret clearance required.
Ability to work independently with accountability for accurate and complete results, as well as in a team environment.
Strong organization, attention to detail, judgment, relationship management, time management, and prioritization skills; ability to work in a fast-paced environment and under pressure.
Ability to communicate effectively, interact professionally and courteously with diverse customers and staff, and provide superior customer service.
Physical ability to regularly talk or hear; frequently stand, walk, handle or feel, and reach with hands and arms; occasionally sit, climb or balance, and stoop, kneel, crouch, or crawl; lift or move up to 10 pounds and occasionally up to 25 pounds; and meet the listed vision requirements.

Nice To Haves

Bachelor's degree in Information Technology, Computer Science, or a related field; equivalent professional experience is accepted.
Red Hat certifications such as RHCSA or RHCE, and/or Linux+ certification.
Experience in defense or mission-critical IT operations with a focus on security and compliance standards.
Experience administering Windows environments.

Responsibilities

Administer and maintain Red Hat platforms, including workstation monitoring, user management, resource allocation, patching, upgrades, and troubleshooting to minimize downtime.
Perform advanced RHEL system administration, including installation, configuration, security hardening, performance tuning, backup and recovery, and log management.
Develop and execute scripts and playbooks with Ansible and Ansible Automation Platform to automate administrative tasks, configuration management, deployments, and system maintenance.
Resolve daily Linux operational issues for end users and application teams, provide guidance, and ensure smooth system access and functionality.
Document system configurations, operational procedures, runbooks, and troubleshooting guides.
Manage and support large storage units, maintaining consistent permissions and configuration management.
Monitor system performance and health, respond to alerts and incidents, conduct root cause analysis, and apply fixes to maintain reliability, security, and compliance.
Collaborate with users and other teams to resolve cross-team operational challenges.
Stay current with Red Hat technologies, Linux best practices, automation tools, and container administration trends.
Provide customer service and communicate effectively with customers and staff; analyze information, prioritize tasks, and deliver accurate and complete results.