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).
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Perform system upgrades, kernel updates, patch management, and performance tuning.
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Implement and manage user access, security policies, and backup/recovery strategies.
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Troubleshoot and resolve hardware, OS, and network-related issues.
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Maintain configuration management and deployment pipelines using Ansible, Puppet, or similar tools.
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Monitor system health and resource utilization; ensure optimal uptime and performance.
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Collaborate with DevOps and Cloud teams for environment provisioning (AWS, Azure, or on-prem).
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Manage server hardening, SSH configuration, SSL certificates, and OS-level security compliance.
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Participate in capacity planning, disaster recovery, and incident response activities.
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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).
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Strong command of Bash scripting and automation tools (e.g., Ansible, Terraform, Shell, or Python basics).
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Experience with monitoring tools such as Nagios, Zabbix, or Prometheus.
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Solid understanding of networking fundamentals (DNS, DHCP, NFS, SSH, firewalls).
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Experience with virtualization and containerization technologies (VMware, KVM, Docker, etc.).
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Strong troubleshooting skills with system logs, kernel issues, and service failures.
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Familiarity with version control (Git) and CI/CD pipeline environments.
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Exposure to cloud platforms (AWS, GCP, Azure) is an added advantage.
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Excellent documentation and communication skills; ability to support global teams.
Preferred Qualifications
- Red Hat Certified System Administrator (RHCSA) or Engineer (RHCE) certification.
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Experience managing high-availability clusters, load balancing, and RAID management.
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Previous experience in enterprise-scale infrastructure environments or tech product companies.
Soft Skills
- Strong ownership and accountability mindset.
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Detail-oriented with a proactive approach to issue prevention.
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Excellent communication and coordination with cross-functional teams.
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Ability to handle pressure and maintain SLAs in critical environments.
