Job Overview : We are seeking a Senior Linux Systems Administrator experienced in Ubuntu and Red Hat Enterprise Linux (RHEL) environments. The role involves managing and optimizing large-scale Linux server infrastructure across production and development environments, ensuring uptime, reliability, and security. This position will closely collaborate with DevOps, Network, and Software teams to support mission-critical systems, implement automation, and streamline infrastructure management processes.

Key Responsibilities • Manage, monitor, and maintain Ubuntu and Red Hat Linux servers (production and staging). • Perform system upgrades, kernel updates, patch management, and performance tuning. • Implement and manage user access, security policies, and backup/recovery strategies. • Troubleshoot and resolve hardware, OS, and network-related issues. • Maintain configuration management and deployment pipelines using Ansible, Puppet, or similar tools. • Monitor system health and resource utilization; ensure optimal uptime and performance. • Collaborate with DevOps and Cloud teams for environment provisioning (AWS, Azure, or on-prem). • Manage server hardening, SSH configuration, SSL certificates, and OS-level security compliance. • Participate in capacity planning, disaster recovery, and incident response activities. • Create and maintain detailed system documentation, SOPs, and audit reports.

Required Skills & Experience • 5+ years of hands-on experience in Linux system administration (Ubuntu & Red Hat). • Strong command of Bash scripting and automation tools (e.g., Ansible, Terraform, Shell, or Python basics). • Experience with monitoring tools such as Nagios, Zabbix, or Prometheus. • Solid understanding of networking fundamentals (DNS, DHCP, NFS, SSH, firewalls). • Experience with virtualization and containerization technologies (VMware, KVM, Docker, etc.). • Strong troubleshooting skills with system logs, kernel issues, and service failures. • Familiarity with version control (Git) and CI/CD pipeline environments. • Exposure to cloud platforms (AWS, GCP, Azure) is an added advantage. • Excellent documentation and communication skills; ability to support global teams.

Preferred Qualifications • Red Hat Certified System Administrator (RHCSA) or Engineer (RHCE) certification. • Experience managing high-availability clusters, load balancing, and RAID management. • Previous experience in enterprise-scale infrastructure environments or tech product companies.

Soft Skills • Strong ownership and accountability mindset. • Detail-oriented with a proactive approach to issue prevention. • Excellent communication and coordination with cross-functional teams. • Ability to handle pressure and maintain SLAs in critical environments.

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