Network Security Engineer

Job Title:
Senior Network Security Engineer

Job Location:
Orange, CT

Project Duration: 6-12 months with possible extension

We are seeking a highly skilled Senior Network Security Engineer to join our team and play a key role in securing, optimizing, and transforming our enterprise network infrastructure.

The ideal candidate will have deep expertise in firewall security, NAT, IPSEC, SD‑WAN, routing protocols (EIGRP, BGP, OSPF), and cloud security solutions.

This position will focus on managing and enhancing our security infrastructure, which includes:

• Cisco ASA, Checkpoint, Fortinet Forti Gate, Palo Alto Firewalls
• Radware for DDoS protection
• Zscaler ZIA/ZPA for cloud security
• EIGRP, BGP, and OSPF-based network routing
• NAT policy design and implementation

• 5-8 years of experience in network security engineering
• Expertise in Fortinet Forti Gate, Checkpoint, Palo Alto, and Cisco ASA firewalls
• Strong knowledge of SD‑WAN solutions (Fortinet SD‑WAN, Cisco SD‑WAN, Prisma Access)
• Experience configuring and troubleshooting EIGRP, BGP, and OSPF routing protocols
• Hands‑on experience managing Zscaler ZIA/ZPA for cloud security
• Proficiency in VPN technologies (IPSec, SSL, GRE, DMVPN, L2TP) and their security implications
• Strong skills in NAT, firewall rule optimization, and routing table analysis
• Experience with Radware DDoS protection, IPS/IDS, and threat mitigation
• Knowledge of zero‑trust security architectures and secure SD‑WAN implementation
• Lead the migration from Checkpoint to Fortinet, including policy conversion, rule optimization, and traffic validation
• Manage and maintain Cisco ASA, Palo Alto, Fortinet, and Checkpoint firewalls across corporate, cloud, and remote sites
• Design and optimize firewall rule sets for improved security, performance, and compliance
• Perform risk assessments and firewall audits to ensure network security best practices
• Manage and optimize SD‑WAN architecture to improve application performance
• Implement policy‑based traffic steering, failover mechanisms, and WAN optimization
• Ensure seamless integration between SD‑WAN, firewalls, cloud security solutions, and on‑prem networks
• Troubleshoot SD‑WAN performance issues, routing conflicts, and connectivity problems

Mid-Senior level

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