Linux Systems Administrator (Ubuntu / Red Hat)

About this role

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.

Originally posted on Himalayas