The role involves managing and optimizing large-scale Linux server infrastructures, ensuring uptime, reliability, and security while collaborating with various teams.
Job Title: Senior Linux Systems Administrator (Ubuntu / Red Hat)
Location: Remote (Preferred: IST)
Employment Type: Contract part time (4 IST Hour/Day )
Experience Required: 10+ years (Senior Level)
Department: Infrastructure & Cloud Operations
Reports To: Infrastructure Lead / DevOps Manager
Position 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.
Top Skills
Ansible
AWS
Azure
Bash
Docker
GCP
Git
Kvm
Linux
Nagios
Prometheus
Puppet
Python
Red Hat
Terraform
Ubuntu
VMware
Zabbix
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