Talent.com
Senior Network Security Engineer

Senior Network Security Engineer

Global Technical TalentOrange, CT
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Job Summary :

We are seeking a highly skilled Senior Network Security Engineer to secure, optimize, and transform enterprise network infrastructure. This role requires deep expertise in firewall security, NAT, IPSEC, SD-WAN, routing protocols (EIGRP, BGP, OSPF), and cloud security solutions . A key initiative is leading the migration from Checkpoint to Fortinet firewalls while ensuring seamless operations and improved performance. You will also enhance SD-WAN deployments for global connectivity and application optimization. Key Responsibilities :

  • 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.
  • Optimize firewall rule sets to improve security, performance, and compliance.
  • Perform firewall audits and risk assessments.
  • Design, deploy, and optimize SD-WAN solutions to improve global connectivity.
  • Implement policy-based traffic steering, failover, and WAN optimization.
  • Configure and troubleshoot EIGRP, BGP, and OSPF routing for enterprise and cloud environments.
  • Administer and optimize Zscaler ZIA / ZPA solutions for secure cloud access.
  • Implement zero-trust policies for cloud applications and remote access.
  • Maintain and enhance Radware DDoS protection and IPS / IDS solutions.
  • Partner with SOC teams to analyze and respond to security incidents.
  • Perform deep troubleshooting using packet captures and security logs.
  • Collaborate with vendors (Cisco, Fortinet, Palo Alto, Zscaler) for advanced issue resolution.
  • Develop scripts (Python, Bash, PowerShell) for firewall audits and policy automation.
  • Ensure compliance with NIST, CIS, and ISO security standards.

Required Experience :

  • – years in network security engineering
  • Expertise in Fortinet FortiGate, Checkpoint, Palo Alto, and Cisco ASA firewalls
  • Strong knowledge of SD-WAN solutions (Fortinet, Cisco, Prisma Access)
  • Routing protocol expertise (EIGRP, BGP, OSPF)
  • Experience managing Zscaler ZIA / ZPA for cloud security
  • Proficiency with VPN technologies (IPSec, SSL, GRE, DMVPN, LTP)
  • Experience with Radware DDoS protection, IPS / IDS, and threat mitigation
  • Deep knowledge of NAT design and optimization
  • Strong troubleshooting skills using packet analysis and firewall logs

    • Nice-to-Have Experience :

  • Certifications in VMware, Microsoft, or Fortinet
  • Automation experience with Ansible and Terraform
  • SQL and Exchange Server design / support
  • Familiarity with AI / ML for network optimization

    • Required Skills :

  • Firewall Security (Fortinet, Cisco, Palo Alto, Checkpoint)
  • SD-WAN Architecture & Optimization
  • Zscaler ZIA / ZPA Cloud Security
  • Routing Protocols (EIGRP, BGP, OSPF)
  • DDoS Protection & Threat Mitigation

    • Preferred Skills :

  • Network Automation (Python, Bash, PowerShell)
  • Disaster Recovery & Business Continuity
  • VPN Technologies & Secure Connectivity
  • Policy Compliance (NIST, CIS, ISO )
  • Vendor Collaboration & Advanced Troubleshooting

    • Benefits :

  • Medical, Vision, and Dental Insurance Plans
  • k Retirement Fund

    • About the Client :

    Our client is a leading sustainable energy company with a footprint in states and $ billion in assets. They serve million electric and natural gas customers in the Northeast and have a diverse renewable energy portfolio. The company is committed to ethical business practices and has been named one of the World’s Most Ethical Companies for three consecutive years. They are also a leader in the growing offshore wind industry and invest in charitable organizations in the communities they serve. About GTT :

    GTT is a minority-owned staffing firm and a subsidiary of Chenega Corporation, a Native American-owned company in Alaska. As a Native American-owned, economically disadvantaged corporation, we highly value diverse and inclusive workplaces. Our clients are Fortune banking, insurance, financial services, and technology companies, along with some of the nation’s largest life sciences, biotech, utility, and retail companies across the US and Canada. We look forward to helping you land your next great career opportunity! Job Number : -

    LI-GTT LI-Onsite

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