Linux RHEL System Administrator

Temporary full-time onsite role in Plano, TX (75023) for approximately 16 months. Hourly rate: $45.00–$47.00.

About the role

We are seeking a Linux RHEL System Administrator with strong foundational expertise in Red Hat Enterprise Linux configuration, troubleshooting, and system administration. The ideal candidate will have deep hands-on experience managing enterprise Linux environments and ensuring system reliability, security, and performance. Experience with cloud platforms and DevOps tools is a plus.

Responsibilities

• Administer, configure, and maintain RHEL-based Linux servers across production, staging, and development environments.
• Perform system installation, patching, upgrades, kernel tuning, and performance optimization.
• Manage user accounts, permissions, file systems, storage, and networking configurations.
• Monitor system health, automate routine tasks, and ensure high availability and uptime.
• Troubleshoot complex OS-level issues and provide root-cause analysis.
• Implement and maintain security best practices, including SELinux, firewalls, and vulnerability remediation.
• Support backup, recovery, and disaster recovery processes.
• Collaborate with application, network, and security teams to support business-critical workloads.
• Document system configurations, procedures, and operational standards.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, or related field.
• 3+ years of Red Hat Enterprise Linux (RHEL) system administration in enterprise environments.
• 3+ years of Linux infrastructure management, including networking (DNS, DHCP, firewalls).
• 3+ years of proficiency with shell scripting (Bash, sh) for automation.
• Deep understanding of system configuration and hardening, networking fundamentals (DNS, DHCP, routing, firewalls), storage management (LVM, NFS, iSCSI), and system monitoring and log analysis.
• Experience with package management (YUM, DNF) and system services (systemd).
• Working knowledge of LDAP (NSS/PAM/SSSD) and Sendmail/SMTP.
• Familiarity with virtualization technologies (VMware, KVM, etc.).
• Strong troubleshooting and analytical skills.
• Strong communication and documentation abilities.
• Ability to work independently and collaboratively in a fast-paced environment.
• Problem-solving mindset with attention to detail.
• Commitment to continuous learning and staying current with emerging technologies.

Qualifications

• Preferred certifications: Red Hat certifications such as RHCSA, RHCE; cloud certifications (AWS, Azure, GCP).
• Desired experience with cloud platforms (AWS, Azure, GCP), Infrastructure as Code tools (Terraform), CI/CD pipelines (Jenkins, GitLab CI, GitHub Actions), configuration management tools (Ansible, Puppet, Chef), containerization (Docker), orchestration (Kubernetes, OpenShift), and monitoring tools (Prometheus, Grafana, Nagios, Zabbix).
• Database exposure.

Pay

Hourly rate: $45.00–$47.00.

Schedule

Regular business hours, onsite in Plano, TX.