Linux Systems Administrator with Security Clearance

Overview i3 is seeking a Linux Systems Administrator to support an Army Contract. The Linux Systems Administrator will provide technical expertise supporting information system components, infrastructure integration and maintenance.  Responsibilities

• Administer and maintain Red Hat platforms, including daily operations such as Workstation monitoring, user management, resource allocation, patching, upgrades, and troubleshooting platform issues to minimize downtime.
• Perform advanced Linux (RHEL) system administration tasks, including installation, configuration, security hardening, performance tuning, backup/recovery, and log management.
• Develop and execute automation scripts and playbooks using Ansible and Ansible Automation Platform to automate repetitive administrative tasks, configuration management, deployments, and system maintenance on Linux environments.
• Support end users and application teams by resolving daily operational issues related to Linux systems, providing guidance, and ensuring smooth access and functionality.
• Document system configurations, operational procedures, runbooks, and troubleshooting guides with clear, detailed written communication to facilitate team knowledge sharing and compliance.
• Manage and support large storage units for 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 in regulated environments.
• Collaborate with users to resolve cross-team operational challenges.
• Stay up-to-date with Red Hat technologies, Linux best practices, automation tools, and container administration trends to improve operational efficiency. Qualifications
• Bachelor's degree in Information Technology, Computer Science, or a related field (preferred); equivalent professional experience accepted.
• 5 Years of hands-on experience in systems administration, with strong emphasis on Linux/Red Hat and also Windows environments.
• Expertise in administering Red Hat Enterprise Linux, including troubleshooting, server operations, and supporting production workloads.
• Proficiency in Linux system administration (RHEL preferred) and scripting (e.g., Bash) for task automation.
• Solid experience with Ansible and Ansible Automation Platform for configuration management and automation.
• Strong written and verbal communication skills, with 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.

Preferred Skills

• Red Hat certifications (e.g., RHCSA, RHCE) and/or Linux + certification.
• Experience in defense or mission-critical IT operations with focus on security and compliance standards.
• Experience administration in Windows environments.

Knowledge/Skills

• Knowledge of office administration and procedures.
• Exceptional judgment capabilities and relationship management skills.
• Excellent communication, teamwork, and client service skills; ability to clearly communicate in discussions and written documents, and to deliver feedback clearly and tactfully.
• Interact with a diverse array of customers and staff in a professional and courteous manner.
• Work independently with accountability for accurate and complete results.
• Be extremely organized and exceptionally detail oriented.
• Work well both independently and in a team environment.
• Be energized by a fast-paced work environment.
• Must be able to communicate with others effectively.
• Analyze information and respond appropriately.
• Manage time wisely and prioritize tasks.
• Provide superior customer service.
• Multi-task in a pleasant manner.
• Work well under pressure.

PHYSICAL DEMANDS

• The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.
• While performing the duties of this job, the employee is regularly required to talk or hear. The employee frequently is required to stand; walk; handle or feel; and reach with hands and arms.
• The employee is occasionally required to sit; climb or balance; and stoop, kneel, crouch or crawl. The employee must be able to lift and/or move up to 10 pounds and occasionally lift and/or move up to 25 pounds.
• Specific vision abilities required by this job include close vision, distance vision, peripheral vision, depth perception and ability to adjust focus.
• Regular i3 hours are 8:00 a.m.
• 5:00 p.m. Monday-Friday, however, additional hours may be required on occasion. Regular and punctual attendance is required.