Gotham Technology Group
Network Administrator
Gotham Technology GroupUnited States2 days ago
ContractInformation Technology

Mid-Level Network Administrator

Duration: Contract to hire

Location: Onsite near East Rutherford

Salary upon conversion: 82-100k


We are seeking a Mid-Level Network Administrator to support and maintain our organization’s network infrastructure. This role is ideal for someone with strong hands-on experience in networking, security, and systems support, who is comfortable working primarily in an on-premises environment with limited cloud exposure.


Key Responsibilities

  • Manage and maintain network infrastructure, including routers, switches, firewalls, and wireless systems
  • Administer and support Cisco networking equipment, including switches, firewalls, and Cisco ISE (NAC)
  • Monitor network performance, troubleshoot outages, and perform upgrades, patches, and maintenance
  • Configure and support LAN/WAN environments, VPNs, and core network services (DNS, DHCP, Active Directory)
  • Work with load balancers and web application firewalls (Fortinet experience or conceptual understanding required)
  • Participate in network design, deployment, and configuration initiatives
  • Maintain accurate network documentation, diagrams, and change management records
  • Implement and enforce security policies; respond to incidents using tools such as Forcepoint, CrowdStrike, and others
  • Provide support for server environments and limited cloud infrastructure (Microsoft 365, Azure – minimal focus)
  • Deliver Windows desktop and server support as needed (approximately 15–20% helpdesk support; initial onboarding may include helpdesk responsibilities)
  • Participate in an on-call rotation for after-hours and weekend support (monthly basis)


Required Skills & Experience

  • 3–5+ years of network administration experience
  • Strong knowledge of routing and switching (VLANs, SDLAN, segmentation, trunking, core channels, micro-segmentation)
  • Hands-on experience with Cisco networking technologies and Fortinet firewalls
  • Understanding of LAN/WAN, VPNs, and wireless networking
  • Experience with network security tools (e.g., Forcepoint, Secure Access, Globalscape, CrowdStrike)
  • Familiarity with Windows Server/Desktop environments; Linux and macOS experience is a plus
  • Exposure to virtualization technologies
  • Experience with network monitoring tools (or ability to implement them)


Education & Certifications

  • Bachelor’s degree in Information Technology, Computer Science, or related field (or equivalent experience)
  • Relevant certifications such as CCNA or CCNP are a plus


Additional Information

  • This role is primarily on-premises (approx. 98%) with limited cloud involvement
  • Not a cloud-focused position
  • Opportunity to grow from helpdesk exposure into a broader network/server role

Key Skills

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