Sr Systems Administrator

• Administer, maintain, and support the application with the customer enterprise.
• Perform installation, configuration, patching, upgrades, and lifecycle management of Windows and Linux servers.
• Monitor system health, performance, and availability using enterprise monitoring tools.
• Troubleshoot complex hardware, software, operating system, and application issues.
• Support deployment activities across development, test, staging, and production environments.
• Coordinate scheduled maintenance windows and execute system upgrades with minimal operational impact.
• Develop and maintain automation scripts using Power Shell, Bash, or Python to improve operational efficiency.
• Perform backup, recovery, and disaster recovery operations.
• Support accreditation activities and ensure compliance with customer, DoD, RMF, DISA STIG, and security requirements.
• Manage user accounts, permissions, and Active Directory integrations.
• Collaborate with security teams to remediate vulnerabilities and maintain compliance.
• Support incident response, root cause analysis, and corrective action implementation.
• Document system configurations, standard operating procedures, and technical documentation.
• Participate in on-call rotation and provide after-hour support when required.
• Interface directly with customer to address operational tasking and mission requirements.

Basic Qualifications:

• US citizenship is required per contract with an ACTIVE TS/SCI clearance.
• Bachelor’s degree in Information Technology, Computer Science, Engineering, or related field and 8-12 years of prior relevant experience or Master’s with 6-10 years of prior relevant experience.
• 8+ years of enterprise systems administration experience.
• Experience supporting mission-critical DoD or Intelligence Community environments.
• Strong administration experience with:
  
  Microsoft Windows Server Red Hat Enterprise Linux (RHEL)
  VMware vSphere
  
  Active DirectoryDNS/DHCPGroup Policy
• Experience with scripting and automation using Power Shell, Bash, or Python.
• Experience implementing and maintaining STIG compliance.
• Knowledge of RMF security controls and vulnerability remediation.
• Strong troubleshooting and analytical skills.
• Must have a Security+ CE or higher DoD 8570/8140 certification

Preferred Qualifications:

• Experience supporting customer mission systems.
• Experience supporting GEOINT applications.
• Experience with:
  
  AnsibleVMware vCenterSCCM/MECMSplunk
  
  Elastic Stack Git Service Now
• Red Hat Certified Systems Administrator (RHCSA)
• Microsoft Certified:
  Windows Server Hybrid Administrator Associate