Network Administrator

Our client is looking for a Network Administrator to own their hybrid Microsoft environment (Active Directory / Entra ID / Microsoft 365) for a 3-month contract.

No third parties or agencies, please.

Responsibilities

• Manage on-premises Active Directory and its sync to Microsoft Entra ID (formerly Azure AD), run the Azure virtual machines our business depends on, and keep our fleet of Windows 11 laptops secure, patched, and productive using NinjaOne and SentinelOne.
• Administer on-premises Active Directory Domain Services, including users, groups, OUs, Group Policy, DNS, and DHCP
• Manage and troubleshoot directory synchronization with Microsoft Entra ID through Entra Connect or Cloud Sync
• Maintain hybrid identity features such as password hash sync, pass-through authentication, SSO, MFA and Hybrid Entra ID Join
• Configure and enforce Conditional Access policies, Intune, and self-service password reset
• Handle account lifecycle for onboarding, role changes, and offboarding
• Monitor Azure Backup and Site Recovery, and keep Azure VMs patched through NinjaOne Update Manager
• Apply role-based access control (RBAC) and least-privilege principles across subscriptions and resource groups
• Manage Windows 11 laptops through Microsoft Intune, including compliance policies, configuration profiles, and app deployment
• Use NinjaOne for remote monitoring and management: patch management for OS and third-party apps, alerting, scripted remediation, software deployment, and remote support
• Maintain endpoint security with SentinelOne EDR, BitLocker, and AppRiver
• Manager Tier 2/3 support escalation to Offsite MSP.

Qualifications

Required

• 3+ years of experience administering Windows Server and Active Directory
• Hands-on experience with a hybrid AD and Entra ID environment, including directory sync
• Practical experience managing Azure VMs and Azure networking
• Experience managing Windows 10/11 endpoints manually with RMM and Intune or a similar MDM
• Hands-on experience with an RMM platform, ideally NinjaOne
• Hands-on experience with an EDR platform, ideally SentinelOne
• Strong grasp of networking fundamentals: TCP/IP, DNS, DHCP, VLANs, routing, and VPN
• PowerShell scripting skills
• Strong troubleshooting ability and clear communication with non-technical users

Preferred

• Microsoft certifications such as AZ-104 (Azure Administrator), MD-102 (Endpoint Administrator), AZ-800/801 (Windows Server Hybrid Administrator), or SC-300 (Identity and Access Administrator)
• SentinelOne certification (such as SentinelOne Certified Admin) or NinjaOne certification
• Experience with Microsoft 365 administration (Exchange Online, Teams, SharePoint)
• Experience with a SIEM or XDR platform, such as SentinelOne Singularity or Microsoft Sentinel
• Experience with [firewall vendor, e.g., Fortinet / Palo Alto / Meraki]