Linux System Administrator

Leidos seeks a Linux System Administrator to support mission-critical IT environments for government and commercial clients. In this role, you will install, configure, and maintain Linux servers, ensuring reliability, security, and scalability. Responsibilities include performance monitoring, patching, automation with scripting tools, and enforcing security best practices. You’ll collaborate closely with cross-functional teams in a mission-driven, highly ethical culture that values innovation, diversity, and continuous learning while offering flexible work options and strong career growth., * Install, configure, and maintain Linux servers in production and development environments

• Monitor system performance, uptime, and capacity; troubleshoot and resolve incidents
• Implement and maintain security hardening, patching, and compliance standards
• Automate routine administration tasks using scripting and configuration management tools
• Manage user accounts, access controls, and system backups/recovery
• Support application teams with system-level diagnostics and environment changes
• Document system configurations, procedures, and troubleshooting steps
• Participate in on-call rotation and support change management processes

• Linux server administration (RHEL, Cent
• OS, or Ubuntu)
• Shell scripting (Bash, Python, or similar)
• Configuration management tools (Ansible, Puppet, or Chef)
• System monitoring and performance tuning
• User and access management (LDAP, Active Directory, RBAC)
• Backup and recovery solutions
• Security hardening and patch management
• Virtualization or cloud platforms (VMware, AWS, or similar)
• Networking fundamentals (TCP/IP, DNS, DHCP, firewalls)
• Log management and troubleshooting tools