Network Security Engineer

2 months ago

new york city, United States Fintech Staffing Partners Full time

Network Security/Firewall Engineer - AVP Level

Location: Manhattan, NY ( hybrid - 3 days on-site/week)

Industry: Banking/Financial Services

Employment Type: Full-Time


Position Overview:

The Network Security/Firewall Engineer will be responsible for engineering and administrating network and security infrastructures within a large enterprise environment. This is a firewall-centric, operational role focused on supporting mission-critical networks, managing security products, and developing technology solutions to enhance the security framework. The role reports to the Regional Head of Infrastructure and will be a key contributor in ensuring network security, stability, and optimal performance.


Key Responsibilities:

  • Design, implement, and maintain Fortinet (FortiGate) firewalls in a Cisco network environment.
  • Configure and manage FortiGate security features, including firewall policies, IPS/IDS, VPN, and advanced routing.
  • Troubleshoot and resolve firewall/network security issues, providing hands-on technical support to internal users.
  • Stay current on emerging security threats, vulnerabilities, and best practices.
  • Collaborate with IT teams to ensure comprehensive network security.
  • Document and maintain network security policies and procedures, including FortiGate license management and renewals.
  • Manage and administer LAN, WAN, VPN, DMZs, and other network infrastructures.
  • Understand and operate Fortinet proxies and components.
  • Support fault and performance monitoring, capacity planning, and implement improvements as needed.
  • Ensure compliance with corporate network and firewall change control policies.
  • Troubleshoot network, proxy, load balancers, firewall, and internet connectivity issues.
  • Administer security platforms and network monitoring tools such as Horizon, Tenable, Vectra, Command, and Stablenet.
  • Maintain up-to-date network infrastructure documentation using tools like Visio.
  • Provide off-hours and weekend support when required.


Experience & Qualifications:

  • Minimum 4-5 years of network security/engineering experience, with a focus on firewall-centric roles.
  • Experience with security products, particularly Cisco and Fortinet (1-2 years required).
  • Preferred certifications in Fortinet (NSE 1, 2, 3, etc.) or equivalent experience.
  • Experience in a banking or financial services environment preferred.
  • Strong understanding of VPN concepts, protocols, and implementations.
  • Experience with enterprise firewall management is a plus.
  • Solid working knowledge of UNIX (Solaris and Linux).
  • Familiarity with network protocols and security best practices.
  • Excellent analytical and troubleshooting skills.
  • Strong communication and interpersonal abilities, capable of working independently and as part of a team.
  • Project management experience is a plus.

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