Linux Systems Administrator (Ubuntu / Red Hat)

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
8+ 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.