Senior Systems Administrator

1 week ago


Huntsville, Alabama, United States BlueHalo Full time
Job Overview

BlueHalo is seeking a highly skilled Senior Systems Administrator to join our team. As a key member of our IT department, you will be responsible for designing, creating, and maintaining large data storage pools used by all SSDD projects.

Key Responsibilities
  • Data Storage and Backup Management: Create and maintain periodic snapshots within the pool, ensuring Tier 1 backups are in place.
  • Disaster Recovery: Ensure hourly replication of all data is sent to our disaster recovery server, maintaining Tier 2 backups.
  • Off-System Backups: Maintain weekly, encrypted, off-system backups to external disks, adhering to Tier 3 backup protocols.
  • Data Integrity Scans: Perform monthly data integrity scans of all data within the pool, ensuring data accuracy and reliability.
  • System Administration: Develop and maintain Red Hat Linux kickstart files to automate Linux operating system installation, and Ansible automation playbooks to push system configurations and updates to all Linux machines.
  • Security Compliance: Develop and maintain the Ansible automation playbook that applies STIG rules to Linux systems, ensuring compliance with security regulations.
  • Linux System Administration: Serve as the Linux system administrator for all unclassified AMRULI assets and system administrator for the two classified IVP machines on SSDD in lab 2037.
  • Real-Time Monitoring: Maintain a real-time monitoring system for all SSDD assets across all labs, alerting us to potential problems before they occur.
Requirements
  • Security Clearance: Must currently hold a DoD security clearance at the SECRET level.
  • Technical Expertise: Advanced or expert-level Linux system administrator (7-10 years) with expertise using the command line, experience with Red Hat Enterprise Linux (RHEL) version 8, Bash shell scripting, and Ansible automation.
  • Knowledge and Skills: Knowledge of Linux logical volume management (LVM), ZFS file system, snapshots, data replication, Security Technical Implementation Guidelines (STIG) for RHEL, Red Hat Kickstart, Network File System (NFS), and basic knowledge of SElinux.
  • Additional Requirements: Select and purchase appropriate hardware based on requirements for performance or storage, install server hardware into existing racks, provide network connectivity, ensure adequate electrical power, install operating systems, perform post-installation configuration, apply STIG to secure computing resources, and provide continual maintenance of operating systems.


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