On-Site Linux RHEL SysAdmin for Enterprise Systems

Intone Inc; Plano (TX); On-site; USD 76,000 - 96,000; Full time

Job summary

Intone Inc. in Plano, TX seeks a Linux RHEL System Administrator for an on-site contract role. You will manage enterprise Linux environments, ensure reliability, security, and high performance across production, staging, and development systems.

Responsibilities include administering RHEL servers, patching, tuning kernel, storage and network config, automation scripting, and incident response. Strong knowledge of security, LDAP, and virtualization is required.

Qualifications

• Strong hands-on experience with Linux RHEL system administration in enterprise environments.
• Deep understanding of system configuration and hardening.
• Networking fundamentals including DNS, DHCP, routing, and firewalls.
• Storage management with LVM, NFS, and iSCSI.
• Scripting in Bash for automation and routine tasks.
• YUM/DNF package management and systemd services.
• LDAP (NSS/PAM/SSSD) and Sendmail/SMTP knowledge.
• Experience with virtualization (VMware/KVM).
• Cloud platforms such as AWS, Azure, or GCP.
• Security best practices including SELinux and vulnerability remediation.

Responsibilities

• Administer, configure, and maintain RHEL-based Linux servers across environments.
• Perform system installation, patching, upgrades, kernel tuning, and performance optimisation.
• Manage users, permissions, file systems, storage, and networking configurations.
• Monitor system health, automate tasks, ensure high availability and uptime.
• Troubleshoot OS-level issues and provide root-cause analyses.
• Implement security best practices and remediation activities.
• Support backup, recovery, and disaster recovery processes.
• Collaborate with application, network, and security teams for critical workloads.
• Document configurations, procedures, and standards.

Skills

RHEL admin

System hardening

Networking basics

Storage management

Scripting (Bash)

Package management (YUM/DNF)

LDAP/SSSD

VMware/KVM

Cloud platforms (AWS/Azure/GCP)

Security best practices

Monitoring & logs

Disaster recovery

Education

Bachelor's degree in CS/IT

RHCSA/RHCE certifications

Cloud certifications (AWS/Azure/GCP)

Tools

Terraform

Jenkins

GitLab CI

Docker

Kubernetes

Ansible

Puppet

Chef

Job description

Intone Inc. in Plano, TX seeks a Linux RHEL System Administrator for an on-site contract role. You will manage enterprise Linux environments, ensure reliability, security, and high performance across production, staging, and development systems.

Responsibilities include administering RHEL servers, patching, tuning kernel, storage and network config, automation scripting, and incident response. Strong knowledge of security, LDAP, and virtualization is required.