Senior System Administrator (Hybrid Cloud / On-Premises Infrastructure)

Senior System Administrator (Hybrid Cloud / On-Premises Infrastructure)
Visionaryz Inc.  New York, New York, United States (On-site)

We''re looking for an experienced Senior System Administrator to support a large enterprise infrastructure environment.

📍 Location: Onsite – New York, NY

🕒 Schedule: Full-time | Weekend availability as needed

Required Qualifications:

• 10+ years of senior-level System Administrator experience in enterprise production environments
• Extensive experience with:
• Microsoft Azure (Hybrid Infrastructure)
• Microsoft Exchange (Hybrid/Multi-Org)
• Microsoft Active Directory (Multi-Forest)
• PowerShell and/or Unix Shell Scripting
• Strong experience designing, implementing, and supporting enterprise hybrid cloud and on-premises infrastructure
• Experience with Windows Server, DNS, PKI, Group Policy, SCCM, Entra Connect, SQL Server, migration tools, and enterprise troubleshooting is highly preferred.

Responsibilities:

• Design and support hybrid Azure and Exchange environments
• Administer enterprise Active Directory and Windows/Unix systems
• Lead infrastructure projects and troubleshoot complex enterprise environments
• Develop and maintain scalable enterprise IT solutions
• Mentor junior technical staff and collaborate with cross-functional teams.

⚠️ Important: This role requires true senior-level production experience. Experience limited to account provisioning, user creation, training, or lab environments will not qualify.