System Administrator

One of our clients is urgently looking for a System Administrator.

Hourly: $35 - $40 per hour (W2)

Duration: Long-term

Key Responsibilities:

Windows Server & Infrastructure Management

• Administer and support Windows Server environments (2016/2019/2022), including Active Directory, DNS, DHCP, and Group Policy.
• Oversee virtualization platforms such as Hyper-V or VMware.
• Manage system patching, updates, and backups for servers and critical systems.
• Ensure domain and file system security, user/group management, and access provisioning.

Microsoft 365 E5 Administration

• Administer Microsoft 365 E5 services including Exchange Online, SharePoint, Teams, OneDrive, and Security & Compliance Center.
• Implement and maintain Intune device management and conditional access policies.
• Support Azure AD synchronization and identity management.
• Configure and monitor Microsoft Defender for Endpoint and Defender for Office 365.

Security & Compliance

• Maintain firewall, VPN, and endpoint security policies in compliance with organizational standards.
• Perform regular network and system audits to identify vulnerabilities.
• Participate in disaster recovery planning, testing, and documentation.

Support & Collaboration

• Provide Tier 2–3 technical support for networking and system-related issues.
• Collaborate with helpdesk and application teams to resolve complex IT incidents.
• Assist in IT project planning and infrastructure upgrades.

Network Administration

• Configure, monitor, and maintain Cisco routers, switches, firewalls, and VPNs.
• Manage LAN/WAN connectivity, VLANs, QoS, and network segmentation.
• Implement and maintain network security best practices, including access controls and firewall policies.
• Troubleshoot network outages, latency, and performance issues.
• Maintain detailed network documentation, diagrams, and configurations.

Qualifications & Skills:

Required

• 5+ years of experience as a Systems Administrator, or similar role.
• Hands-on experience with Microsoft 365 E5 and Azure AD environments.
• Proficiency in Windows Server administration and Active Directory management.
• Strong knowledge of Cisco networking (CCNA-level or higher) routing, switching, VPN, and security.
• Strong knowledge of Meraki Cloud management for switching, routing, and wireless.
• Solid understanding of TCP/IP, DNS, DHCP, VLANs, and VPN technologies.
• Strong troubleshooting and analytical skills.

Preferred

• Cisco CCNP or Microsoft Certified: Azure Administrator / Security certification.
• Experience with Meraki cloud-managed networks.
• Familiarity with PowerShell scripting and automation.
• Knowledge of backup solutions and disaster recovery strategies.
• Experience supporting hybrid cloud environments.