System Administrator III

Description

• Windows Server Management: Advanced administration of Windows Server (2016/2019/2022) environments.
• Competent in Windows Linux OS's
• Public Key Infrastructure (PKI) and Active Directory Certificate Services (AD CS) for Common Access Card (CAC) integration and authentication.
• Group Policy Management: Design, implement, and troubleshoot complex Group Policy Objects (GPOs) to enforce security baselines and configuration management across the domain.
• Virtualization & Storage: Experience managing virtualized environments (typically VMware vSphere/ESXi or Microsoft Hyper-V) and integrated SAN/NAS storage arrays.
• Microsoft Endpoint Configuration Manager (MECM/SCCM) or Windows Server Update Services (WSUS) for enterprise-wide patching.
• Automation & Scripting: Proficiency in PowerShell scripting to automate routine administrative tasks, user provisioning, and system auditing.
• Complex AD Environment Management: Handling multi-domain forests, trusts, and complex organizational unit (OU) structures effectively.
• Critical DNS/DHCP Infrastructure Oversight: Ensuring high availability, security, and proper configuration of DNS and DHCP services at an enterprise scale.
• Strategic SCCM Deployment & Optimization: Planning, implementing, and managing SCCM for software deployment, patch management, OS deployment, and reporting across a large organization.
• Incident Resolution & Root Cause Analysis: Quickly diagnosing and resolving complex issues within AD, GPO, DNS, DHCP, and SCCM environments.
• Security Hardening & Compliance: Implementing security best practices and ensuring compliance with industry regulations (e.g., PCI, HIPAA) within the defined infrastructure.
• Mentorship & Knowledge Transfer: Guiding and mentoring junior team members on AD, GPO, DNS, DHCP, and SCCM best practices.
• Proactive Monitoring & Optimization: Identifying and resolving potential performance bottlenecks and security vulnerabilities before they impact users.
• Application and configuration of Security Technical Implementation Guide (STIG)
• Experience with Backup and Recovery procedures dealing with virtualized systems
• Ability to learn new skills such as NETAPP, VMWARE, CISCO, Routing, etc.

Requirements

• 6 to 10 years of relevant professional experience without a degree.
• DoD Secret Clearance or above
• DoD 8570/5239 IAT Level 3 Certification (e.g., Security X or CISSP)