Senior System Administrator – Windows Server & Automation

The AES Group; Fort Belvoir (VA); On-site; USD 95,000 - 105,000; Full time

Job summary

The AES Group in Fort Belvoir, VA is seeking an experienced System Administrator to provide technical leadership and support enterprise IT infrastructure, while leading a team of approximately 15 professionals. You will ensure reliability, security, performance and availability of enterprise systems, drive process improvements, automate routine tasks, and develop training and documentation.

This role requires active security clearance and strong expertise in Windows Server, SCCM, GPO, and

Qualifications

• Active Secret Security Clearance required.
• 6–10 years of System Administration experience.
• CompTIA Security+ CE certification.
• CompTIA Server+, MCSA, MCP, or equivalent Windows Server certification.
• Experience administering Windows Server environments.
• Experience with Active Directory, Group Policy (GPO), and SCCM.
• Strong knowledge of virtualization technologies.

Responsibilities

• Lead and coordinate the configuration, operation, and maintenance of enterprise information systems.
• Perform day-to-day system administration, resource optimization, and user support.
• Conduct system capacity planning, performance analysis, and recommend infrastructure upgrades.
• Improve system administration efficiency through automation, scripting, and documented procedures.
• Develop and deliver technical training for system administrators.
• Analyze user requirements and recommend appropriate system solutions.
• Manage daily system operations and perform capacity planning.
• Maintain servers, monitoring tools, system logs, and infrastructure connectivity.
• Monitor system performance, availability, backups, and security.
• Respond effectively to critical incidents and support multiple priorities simultaneously.
• Create and manage Group Policy Objects (GPOs).
• Deploy software, updates, and security patches using Group Policy and SCCM.
• Install, configure, troubleshoot, and maintain Windows Server environments including domain controllers, application servers, and file servers.
• Support virtualized server infrastructure and administer lab environments for testing before production deployments.
• Provide software installation, maintenance, and end-user support.
• Administer physical and virtual server infrastructure, including storage systems and backup environments.
• Participate in infrastructure design discussions and provide technical recommendations.
• Prepare operational reports, project status updates, and technical documentation.

Skills

Strong troubleshooting

Documentation skills

Multi-priority management

Communication skills

Education

CompTIA Security+ CE

CompTIA Server+ / MCSA / MCP or equivalent

Tools

Active Directory

GPO

SCCM

Windows Server

Virtualization technologies

Job description

The AES Group in Fort Belvoir, VA is seeking an experienced System Administrator to provide technical leadership and support enterprise IT infrastructure, while leading a team of approximately 15 professionals. You will ensure reliability, security, performance and availability of enterprise systems, drive process improvements, automate routine tasks, and develop training and documentation.

This role requires active security clearance and strong expertise in Windows Server, SCCM, GPO, and