Network & System Administrator

Dice is the leading career destination for tech experts at every stage of their careers. Our client, New Millennium Consulting, is seeking a Network & System Administrator. Apply via Dice today!

• 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.

• 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.

• Administer Microsoft 365 E5 services including Exchange Online, SharePoint, Teams, One Drive, 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.

• 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.

• 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.

• 5+ years of experience as a Network Administrator, Systems Administrator, or similar role.
• 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.
• Proficiency in Windows Server administration and Active Directory management.
• Hands‑on experience with Microsoft 365 E5 and Azure AD environments.
• Solid understanding of TCP/IP, DNS, DHCP, VLANs, and VPN technologies.
• Strong troubleshooting and analytical skills.

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