Linux Systems Administrator

16 hours ago

Romania Uvation Full time €30,000 - €60,000 per year
Job Title: Senior Linux Systems Administrator (Ubuntu / Red Hat)

Location: Remote (Preferred: IST overlap with U.S. hours)
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.

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