Global Technical Talent
Overview
Primary Job Title:
Senior Network Security Engineer Alternate/Related Job Titles:
Firewall Security Engineer; Cloud & Network Security Engineer; SD-WAN Security Engineer; Cybersecurity Network Engineer; Enterprise Security Infrastructure Engineer Location:
Orange, CT Onsite Flexibility:
Onsite Contract Details: Position Type: Contract Contract Duration: 5 months Start: 10/06/2025 End: 03/06/2026 Pay Rate: $82/hr 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 27001
security standards. Required Experience
5–8 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, L2TP) 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 27001) Vendor Collaboration & Advanced Troubleshooting Benefits
Medical, Vision, and Dental Insurance Plans 401k Retirement Fund About the Client
Our client is a leading sustainable energy company with a footprint in 24 states and $40 billion in assets. They serve 3.3 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 U.S. 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 500 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:
25-25751 #LI-GTT #LI-Onsite
#J-18808-Ljbffr
Primary Job Title:
Senior Network Security Engineer Alternate/Related Job Titles:
Firewall Security Engineer; Cloud & Network Security Engineer; SD-WAN Security Engineer; Cybersecurity Network Engineer; Enterprise Security Infrastructure Engineer Location:
Orange, CT Onsite Flexibility:
Onsite Contract Details: Position Type: Contract Contract Duration: 5 months Start: 10/06/2025 End: 03/06/2026 Pay Rate: $82/hr 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 27001
security standards. Required Experience
5–8 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, L2TP) 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 27001) Vendor Collaboration & Advanced Troubleshooting Benefits
Medical, Vision, and Dental Insurance Plans 401k Retirement Fund About the Client
Our client is a leading sustainable energy company with a footprint in 24 states and $40 billion in assets. They serve 3.3 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 U.S. 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 500 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:
25-25751 #LI-GTT #LI-Onsite
#J-18808-Ljbffr