System Administrator III

Job Description

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)

Full-time