Make Your Resume Now

Senior System Administrator

Posted November 27, 2025
Salaried, full-time

Job Overview

Job Summary

The Linux System Administrator is responsible for installing, configuring, maintaining, and troubleshooting Linux-based systems and servers. This role ensures system performance, security, and availability while supporting business-critical applications and infrastructure.


Key Responsibilities

  • System Installation & Configuration:
    Install and configure Linux operating systems on servers, desktops, and virtual machines.
  • Maintenance & Monitoring:
    Monitor system performance, resource utilization, and security logs; apply patches and upgrades regularly.
  • Security Management:
    Implement and maintain system security, including firewalls, access controls, and vulnerability management.
  • User & Access Management:
    Create and manage user accounts, permissions, and authentication policies.
  • Troubleshooting:
    Diagnose and resolve hardware, software, and network issues promptly.
  • Backup & Recovery:
    Perform regular backups and execute disaster recovery procedures.
  • Automation & Scripting:
    Develop scripts (Bash, Python, etc.) to automate routine tasks and improve efficiency.
  • Documentation:
    Maintain detailed documentation of system configurations, processes, and troubleshooting steps.
  • Collaboration:
    Work closely with IT teams to support Linux-based applications and infrastructure.

Required Skills & Qualifications

  • Technical Skills:
    • Proficiency in Linux distributions (Ubuntu, CentOS, Red Hat).
    • Strong knowledge of networking (TCP/IP, DNS, DHCP, firewalls).
    • Experience with virtualization (VMware, KVM) and cloud platforms (AWS, GCP).
    • Familiarity with configuration management tools (Ansible, Puppet, Chef).
  • Scripting & Automation:
    Bash, Python, or Perl scripting experience.
  • Security:
    Understanding of security best practices and compliance standards.
  • Education:
    Bachelor’s degree in Computer Science, IT, or related field (preferred).
  • Certifications:
    RHCSA, RHCE, or equivalent certifications are a plus.

Soft Skills

  • Strong problem-solving and analytical skills.
  • Ability to work in fast-paced environments and manage multiple priorities.
  • Excellent communication and documentation skills.


Work Environment : Hybrid

Ready to Apply?

Take the next step in your career journey

Stand out with a professional resume tailored for this role

Build Your Resume – It’s Free!