Systems Administrator (Linux/Unix)

Security Administrator

Ability to lift 30 pounds • Must possess a CompTIA Security+ or equivalent DoD 8572 qualified certificate (or obtain within the first 60 days of employment) • Experience with Linux or Unix operating systems • Install operating system security patches and firmware updates • Create/manage security groups • Coordinate hardware repair activities • Diagnose and resolve hardware/software problems/issues • Create scripts to automate system administration tasks • Create/edit Standard Operating Instructions (SOI) documentation Desired skills: • Experience with RedHat Enterprise Linux (RHEL) versions 6, 7, 8, & 9 • Experience administering virtual machines with VMWare ESXi • Performing routine server/workstation patching per guidelines • Proficiency in automation with shell and Ansible • Successfully install server and associated hardware • Successfully install/configure software applications and programs • Managing servers in a disconnected environment • Experience with vulnerability remediation and security management (system hardening, log management, configuration management [i.e., Nessus, Trellix, Splunk, SCAP, HBSS]) • Proficiency managing and implementing backup and disaster recovery for Linux systems • Knowledge of National Industrial Security Program Operating Manual (NISPOM), Risk Management Framework (RMF) and Security Technical Implementation Guide (STIG) Requirements • Experience managing Linux systems with NAS/SAN attached storage; ability to troubleshoot storage issues • Experience implementing and managing end user authentication for Linux systems in a mixed authentication environment: NIS & SSSD experience preferred • Previous experience with any of Solaris, AIX, POWER, SPARC