System Administrator 3 – Hybrid IT Environment

About the role

The Systems Administrator 3 will support a secure, stable, and high‑performing hybrid IT environment for a government‑related organization in Richmond, VA. Reporting to the Director of Infrastructure & Operations, the role works closely with Network Engineering, Information Security, End‑User Services, and Application/Data teams to keep core services running smoothly.

Key responsibilities

• Administer Windows Server environments both on‑premises and in the cloud.
• Manage Active Directory, Group Policy, DNS, and DHCP.
• Support Microsoft 365 services, including Exchange Online and Entra ID/Azure AD.
• Execute structured patching, track compliance, and coordinate vulnerability remediation.
• Implement security controls, assist with MFA, system hardening, logging, and audit support.
• Monitor systems, provide Tier 2/3 incident response, and contribute to root‑cause analysis.
• Administer backup and recovery solutions, perform restore testing, and meet RTO/RPO objectives.
• Follow change‑management processes, participate in CAB reviews, and communicate status to leadership.
• Collaborate with network, end‑user, and application teams on dependencies and integrations.

Required profile

• Proven experience administering Windows Server environments.
• Strong knowledge of Active Directory and Group Policy.
• Hands‑on experience with Microsoft 365 (Exchange Online, Entra ID/Azure AD).
• Experience in patch management, system maintenance, and backup/recovery solutions.
• Basic understanding of networking concepts.

Required skills

• Windows Server
• Active Directory
• Group Policy
• DNS
• DHCP
• Microsoft 365
• Exchange Online
• Entra ID / Azure AD
• Patch management
• Backup and recovery
• VMware or Hyper‑V virtualization
• Monitoring tools
• SIEM solutions
• Endpoint management tools