Responsibilities:
The Linux System Administrator will secure Linux-based infrastructure for the FEMA enterprise and leverage DISA STIGs or CIS Benchmarks to reduce attack surfaces while implementing security controls and configurations across Linux systems. This position requires configuring firewalls, access controls, and hardening system services, as well as performing regular patching, software upgrades, and hotfixes on Linux servers. The Linux System Administrator will remediate vulnerabilities and ensure system integrity while planning and testing patches to avoid operational disruptions. Responsibilities include ensuring high availability and uptime for mission-critical systems, proactively monitoring system performance, health, and capacity, and supporting business continuity requirements. The position involves implementing redundancy measures and preventing system failures, managing user identities, authentication, and authorization, and supporting ICAM tools, LDAP, and privileged access management. The Linux System Administrator will implement principle of least privilege and maintain system logging for auditing and compliance. This position requires supporting vulnerability remediation and conducting security assessments while researching and maintaining proficiency in tools, techniques, countermeasures, and trends in computer and network vulnerabilities, data hiding, and network and device security and encryption. The Linux System Administrator will maintain technical documentation for all administrative actions.