Unix Systems Admin, Sr. (Red Hat)

We are seeking an experienced UNIX / Red Hat Linux Administrator to manage maintain and support enterprise Linux and UNIX environments. The successful candidate will be responsible for system administration troubleshooting performance optimization security patching automation and production support.

• Install configure administer and maintain Red Hat Enterprise Linux (RHEL) and UNIX servers.
• Manage user accounts groups permissions sudo access and authentication services.
• Perform operating system patching upgrades hardening and vulnerability remediation.
• Monitor system performance capacity availability and resource utilization.
• Troubleshoot server operating system network storage and application-related issues.
• Manage filesystems LVM NFS RAID multipathing and disk space utilization.
• Configure and maintain services such as SSH DNS NTP FTP/SFTP HTTP and SMTP.
• Support high-availability clustering backup and disaster-recovery environments.
• Automate routine administrative tasks using Shell scripting Ansible or Python.
• Review system logs and conduct root-cause analysis for incidents and recurring problems.
• Collaborate with application database network security and infrastructure teams.
• Participate in change management incident management and on-call support activities.
• Maintain system documentation operational procedures and troubleshooting guides.
• Ensure compliance with organizational security standards and regulatory requirements.

• Bachelors degree in Computer Science Information Technology or a related field or equivalent experience.
• 3-7 years of experience in UNIX/Linux system administration.
• Strong hands-on experience with Red Hat Enterprise Linux.
• Knowledge of UNIX systems such as AIX Solaris or HP-UX is preferred.
• Experience with Shell scripting and Linux command-line tools.
• Working knowledge of TCP/IP DNS DHCP SSH firewalls and networking concepts.
• Experience with system monitoring backup patching and configuration management tools.
• Familiarity with ITIL processes ticketing systems and change-control procedures.
• Ability to troubleshoot complex production issues independently.

• Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE).
• Experience with Ansible Git Python or Terraform.
• Knowledge of cloud platforms such as AWS Microsoft Azure or Google Cloud.
• Experience with Docker Kubernetes or OpenShift.
• Familiarity with virtualization technologies such as VMware.
• Knowledge of security tools vulnerability management and compliance frameworks.
• Experience supporting clustered or highly available environments.

• Operating Systems: RHEL 7/8/9 CentOS UNIX AIX Solaris
• Scripting: Bash KornShell Python