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GlideFast Logo GlideFast · IT - Administration

Red Hat Linux (RHEL) Administrator

United States Employment contract 120000.00 - 130000.00 USD / Year · Job Posted June 30, 2026
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Job Responsibility

  • Administer, monitor, and maintain Red Hat Enterprise Linux environments supporting mission-critical enterprise applications
  • Perform system patching, OS upgrades, package management, configuration changes, maintenance windows, and post-change validation
  • Manage user access, sudo privileges, SSH configuration, service accounts, file permissions, and administrative controls in alignment with security and change management practices
  • Maintain core Linux services and system components, including systemd services, logs, cron, networking, firewalls, storage mounts, LVM, and certificate-related support
  • Support backup, restore, and disaster recovery procedures by validating host readiness, service recovery steps, and operational runbooks
  • Monitor system performance, availability, capacity, disk utilization, memory, CPU, I/O, network connectivity, and service health across production and non-production environments
  • Diagnose and resolve Linux, virtualization, storage, networking, application runtime, and middleware issues that affect enterprise application performance
  • Apply security hardening practices for Linux servers, including vulnerability remediation, secure configuration baselines, access controls, and audit support
  • Troubleshoot Java/Tomcat or similar enterprise application runtime dependencies from the operating system layer as needed
  • Partner with database, application, monitoring, and customer infrastructure teams to resolve cross-platform performance or availability issues
  • Create and maintain scripts, automation, and repeatable procedures to improve operational consistency and reduce manual effort
  • Support monitoring, alerting, log review, and health check activities for Linux hosts and related application components
  • Participate in a scheduled 24x7 on-call rotation for P1/P2 incident response and escalated production support
  • Act as an escalation resource for tier 2/3 and advanced infrastructure incidents, including root cause analysis and corrective action planning
  • Create and maintain runbooks, operational procedures, health check reports, change documentation, and knowledge articles
  • Communicate clearly with customer stakeholders, technical teams, and service delivery leadership during incidents, maintenance events, and ongoing operations

Requirements

  • 5+ years of hands-on Linux systems administration experience, with strong production support experience in Red Hat Enterprise Linux environments
  • Experience supporting high-availability, business-critical, or SLA-driven enterprise environments
  • Demonstrated experience with Linux patching, troubleshooting, hardening, performance analysis, incident response, and operational documentation
  • Linux Expertise: Strong command of RHEL administration, package management, systemd, networking, storage, logs, shell scripting, access controls, and troubleshooting
  • Operational Ownership: Ability to move beyond reactive ticket handling and proactively manage platform health, risk, and reliability
  • Incident Management: Ability to respond calmly and effectively during high-priority incidents, establish action plans, and drive issues to resolution
  • Analytical Troubleshooting: Strong problem-solving skills across operating system, virtualization, storage, application, database, and network layers
  • Security Mindset: Practical understanding of Linux hardening, vulnerability remediation, least privilege, audit readiness, and controlled change execution
  • Communication: Clear written and verbal communication with technical teams, service delivery leaders, and customer stakeholders
  • Documentation Discipline: Strong ability to document procedures, root cause analyses, runbooks, maintenance steps, and recurring health checks
  • Red Hat Enterprise Linux, including RHEL 8/9 administration and production support

Nice to have

  • Experience working in managed services, consulting, federal-adjacent, or customer-facing technical support environments
  • Experience with self-hosted ServiceNow, enterprise workflow platforms, Java/Tomcat-backed applications, or MariaDB-backed application environments
  • Shell scripting and automation
  • Ansible, Red Hat Satellite, or similar automation/configuration tools
  • VMware ESX/virtualized infrastructure experience or similar enterprise virtualization platforms
  • Monitoring, observability, and log management tools for operating system, application, and availability metrics
  • Enterprise application runtimes such as Java/Tomcat, reverse proxy or load balancer integrations, and certificate/keystore support
  • Ticketing, change management, incident management, and knowledge management systems
  • ServiceNow experience
  • Red Hat certifications such as RHCSA or RHCE
  • Bachelor's degree in Computer Science, Information Technology, Information Systems, or a related field

What we offer

  • medical
  • dental
  • vision
  • life insurance
  • discretionary bonuses
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