Senior Windows Administrator

About the role

Rozmith, a security-first managed IT and cybersecurity partner for insurance, financial services and other regulated firms across the US, UK and Europe, is hiring a Senior Windows Administrator. You will keep client Windows and Microsoft environments stable, patched, secure and well documented, run the Windows, identity and Microsoft 365 foundations clients depend on, and act as the senior escalation point for the help desk. You will also plan and deliver migrations as clients grow and acquire companies.

Key responsibilities

• Manage Windows Server, Active Directory, DNS, DHCP, Group Policy and file services across client environments
• Run hybrid identity with Entra Connect or Cloud Sync, and support Lumos for joiner, mover and leaver automation
• Administer Exchange Online, SharePoint, OneDrive and Teams, including mailbox and tenant-to-tenant migrations
• Manage Intune with Autopilot and Apple Business Manager enrollment
• Own monthly patching for servers and endpoints through Tanium and Intune
• Manage backup and recovery, virtualization hosts, and Azure Virtual Desktop with Nerdio
• Act as senior escalation for infrastructure incidents from the help desk
• Lead migrations and integrations when clients acquire companies
• Automate routine work with PowerShell and mentor L1 and L2 engineers

Required profile

• 5+ years administering Windows Server and Active Directory in production
• Deep knowledge of Group Policy, DNS and DHCP
• Hands-on hybrid identity with Entra Connect or Cloud Sync
• Exchange Online and Microsoft 365 administration, including a mailbox migration
• Intune device management
• Backup and recovery with tested restores; Hyper-V or VMware
• PowerShell scripting
• Experience working inside a formal change-control process
• Clear written English, able to write a runbook another engineer can follow at 2 a.m.

Nice to have

• MSP or multi-tenant experience
• M&A integration: AD consolidation, tenant-to-tenant migrations, domain moves
• Azure IaaS, Azure Virtual Desktop with Nerdio
• Tanium or another endpoint management platform at scale
• Certifications: AZ-800/801, MD-102, AZ-104, MS-102

What we offer

• Hybrid working model, from the Skopje office and remotely
• Hours overlapping US Eastern business hours
• Shared after-hours on-call rotation
• Company laptop, paid certification prep and exam vouchers