Network Security Specialist

2 days ago


Portsmouth, New Hampshire, United States NESC Staffing Full time
Job Title: Network Security Specialist

At NESC Staffing, we are seeking a highly skilled Network Security Specialist to join our team. The ideal candidate will have a strong background in network administration, security protocols, and threat detection.

Key Responsibilities:
  • Monitor and maintain the organization's perimeter and endpoint security
  • Configure and manage routers, switches, firewalls, IPS, WAF, load balancers, and other networking equipment
  • Support complex network and infrastructure issues and manage the performance and capacity of infrastructure and applications
  • Troubleshoot, manage, and provision Servers (2016/2022)
  • Implement upgrades, patches, and installation of new applications, security patches, and equipment
  • Troubleshoot system failures
  • Participant in an on-call rotation (1-week per month)
Requirements:
  • Four + years of experience with network administration of Cisco and networking hardware (switches, firewalls, routers, etc)
  • Experience supporting LAN, WAN, SD-WAN, IPSEC-Tunnels, MPLS WAN, EPL WAN, OSPF, BGP, and other routing protocols
  • Build Cisco ASA firewalls
  • Build F5 Load Balancers
  • Maintain Cisco Firepower and F5 ASM (WAF)
  • Monitoring of network and system logs using Splunk or other SIEM platform
  • Experience with threat detection, network & and application vulnerability scans, PEN testing, etc
Preferred Qualifications:
  • Three+ years of experience with supporting Microsoft-based infrastructure: Servers, AD, SQL, IIS, File Services, etc
  • Support virtualization technologies, particularly VMware vSphere and Nutanix AHV
  • Implement security (users, roles, security groups)
Additional Requirements:
  • Managing end-user remote access solutions: VPN, SSL VPN, Citrix
  • CCNA or CCNP certification
  • US Citizen or Green Card status required

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