Roles & Responsibilities:
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Install, configure, and maintain Red Hat Enterprise Linux (RHEL) systems across environments
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Design and manage highly available and resilient Linux infrastructure
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Perform advanced system administration including kernel tuning, patching, and upgrades
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Automate system provisioning, configuration, and deployment using tools like Ansible
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Monitor system performance, troubleshoot issues, and ensure optimal uptime
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Implement and enforce system security (SELinux, firewalls, access control, hardening)
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Manage storage (LVM, NFS, SAN) and file systems
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Administer user access, authentication (LDAP/AD integration), and identity management
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Work with DevOps and cloud teams on hybrid/cloud infrastructure (Azure, AWS, GCP)
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Maintain backup and disaster recovery processes
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Ensure compliance with security standards (ISO, SOC2, CIS benchmarks)
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Create and maintain documentation, SOPs, and system architecture diagrams
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Mentor junior administrators and provide technical leadership
Professional & Technical Skills:
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Bachelor's degree in Computer Science, IT, or related field
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8+ years of hands-on experience in Linux system administration
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Strong expertise in Red Hat Enterprise Linux (RHEL 7/8/9)
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Deep knowledge of:
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Linux internals (process management, memory, file systems)
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Shell scripting (Bash) and automation
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System performance tuning and troubleshooting
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Experience with:
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Configuration management tools (Ansible must, Terraform)
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Monitoring tools (Nagios, Zabbix, Prometheus, Grafana)
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Virtualization (VMware/KVM)
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Strong knowledge of networking fundamentals (TCP/IP, DNS, NTP, SSH) *OS hardening *Patch management and vulnerability remediation *SSH hardening and access control
Preferred Certifications-
Red Hat Certified Engineer (RHCE) (must)
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Red Hat Certified System Administrator (RHCSA) (preferred)
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Red Hat Certified Architect (RHCA) (highly desirable)
