Invictus International Consulting, LLC
  • 29-Dec-2020 to Until Filled (EST)
  • Springfield, VA, USA
  • Full Time
  • TS/SCI with CI Poly

Title: System Administrator              

Location: Springfield, VA   

Clearance: TS/SCI w/CI polygraph


  • Develop automation tools by writing/modifying scripts for deployment, maintenance, and system monitoring using Linux shell scripts, Python, Perl, or other scripting languages
  • Document, review, and maintain system administrator guides and standard operating procedures
  • Identify and resolve Linux system errors and crashes, disk space problems, and full disk errors
  • Implement and troubleshoot Linux network services such as NFS, NTP, FTP, SSH, DNS, NIS, Sendmail, and Apache SMTP
  • Configure LDAP server and LDAP client on Linux machines for centralized authorization and authentication
  • Build new Linux Virtual Machines and physical server using templates and ISOs
  • Create new Linux templates and secure them using the appropriate STIG
  • Manage package install/upgrades using YUM and RPM.
  • Experience with Ansible Tower and playbooks with knowledge of creating, troubleshooting, and deploying.
  • Experience in backend solution's day-to-day system administration, log extraction/monitoring, and creation of shell scripts for the automation of daily tasks and monitoring
  • Hardware and software installations, upgrades, maintenance, security analysis and network performance and tuning of Linux servers in a virtual infrastructure
  • Installation and maintenance of RedHat Satellite servers to push changes (Spacewalk) and patches to various servers simultaneously
  • Mentor junior team members as required
  • Support operations across multiple geographic locations and networks
  • Provide follow-up reports (technical findings, feedback, resolution steps taken) for Root Cause Analysis, engineering technical assessment and process improvement initiatives


  • Bachelor's degree with 8+ years of relevant experience or Master's degree with 6+ years of relevant experience required
  • 10+ years of practical experience administering Linux servers in a physical and virtual enterprise environment
  • Experience installing, configuring, securing, and troubleshooting CentOS, RHEL, or Ubuntu Linux
  • Extensive automation experience to automate installing, securing, configuring, and updating of Linux systems
  • Knowledge of Dell (Power Edge), HP (Proliant servers), or Sun-Fire T-series Enterprise Servers
  • Extensive knowledge of VERITAS NetBackup, VMWare, and RedHat LVM tools
  • Knowledge of configuring the automated monitoring of Linux systems utilizing Splunk, Solarwinds, or Microsoft SCOM
  • Experience with the following languages: Bash, Perl, C, C++, JAVA, Python, and/or Ansible Tower playbooks
  • Network experience and understanding of the following as it relates to administering a Linux server environment: TCP/IP, NIS, NFS, DNS, DHCP, FTP/TFTP, SSH, SFTP, ARP
  • Experience with storage tools such as LVM, SCSI, Ext 3, Ext 4, XFS, NAS (NFS, SAMBA, RAID 0/1/5) and SAN (iSCSI, FiberChannel)
  • Familiarity with Hyper Converged Infrastructure (HCI) solutions such as Dell VXRail
  • DoD IAT Level II certification required (Security+ CE, CCNA-Security, GSEC, or SSCP)
  • RHCSA or RHCSE certification preferred
  • Current active TS/SCI clearance with a CI polygraph
Invictus International Consulting, LLC
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