5-8 years of experience in network security engineering
Expertise with enterprise firewalls across multiple vendors
Strong knowledge of SD-WAN technologies and architectures
Hands-on experience with EIGRP, BGP, and OSPF routing protocols
Experience with cloud security access platforms and zero-trust solutions
Advanced knowledge of VPN technologies and NAT design
Experience with DDoS mitigation and intrusion detection/prevention systems
Responsibilities
Lead firewall migration initiatives including policy conversion and traffic validation
Manage and maintain enterprise firewall environments across various sites
Design, optimize, and audit firewall rule sets for improved security posture
Conduct risk assessments and security audits adhering to best practices
Design and optimize SD-WAN architectures for enhanced performance
Configure and troubleshoot enterprise routing protocols
Administer cloud security access solutions and implement zero-trust policies
Implement and maintain DDoS protection and threat detection solutions
Develop automation frameworks for network security operations
Benefits
Opportunity to lead major network security initiatives
Work with cutting-edge SD-WAN and cloud security technologies
Collaborative environment with security operations teams
Focus on continuous optimization and modernization of security infrastructure
Ability to develop and implement innovative security solutions
Full Job Description
Job Description:
Job Summary
We are seeking a highly skilled Senior Network Security Engineer to secure, optimize, and modernize enterprise network infrastructure. This role focuses on advanced firewall security, SD-WAN optimization, routing protocols, cloud security, and zero-trust architectures. The ideal candidate brings deep hands-on expertise across multi-vendor security platforms and leads major network security initiatives, including firewall migrations and cloud security enhancements.
Lead firewall migration initiatives, including policy conversion, optimization, and traffic validation.
Manage and maintain enterprise firewall environments across on-premises, cloud, and remote sites.
Design, optimize, and audit firewall rule sets to improve security posture, performance, and compliance.
Conduct regular risk assessments and security audits aligned with industry best practices.
SD-WAN & Routing Optimization
Design, manage, and optimize SD-WAN architectures for performance, resiliency, and global connectivity.
Implement traffic steering, failover, and WAN optimization strategies.
Configure and troubleshoot enterprise routing protocols including EIGRP, BGP, and OSPF.
Optimize routing policies for high availability and performance across hybrid networks.
Cloud & Zero-Trust Security
Administer cloud security access solutions for secure application access and web protection.
Implement zero-trust access policies for users and cloud workloads.
Troubleshoot cloud security tunnels, proxy configurations, and access workflows.
Threat Protection & Incident Response
Implement and maintain DDoS protection, IPS/IDS, and threat detection solutions.
Analyze security events, logs, and packet captures to diagnose and mitigate threats.
Collaborate with security operations teams and vendors on complex incident resolution.
Automation & Optimization
Develop scripts and automation frameworks to streamline firewall audits, policy updates, and network security operations.
Maintain accurate documentation of network security configurations, policies, and standards.
Continuously optimize security infrastructure to improve efficiency and performance.
Required Skills & Experience
5-8 years of experience in network security engineering
Expertise with enterprise firewalls across multiple vendors
Strong knowledge of SD-WAN technologies and architectures
Hands-on experience with EIGRP, BGP, and OSPF routing protocols
Experience with cloud security access platforms and zero-trust solutions
Advanced knowledge of VPN technologies and NAT design
Experience with DDoS mitigation and intrusion detection/prevention systems
Strong troubleshooting skills using logs, packet analysis, and security monitoring tools
Preferred Qualifications
Industry security and networking certifications
Experience securing cloud environments across major platforms
Familiarity with SIEM and security monitoring tools
Experience with infrastructure automation and scripting tools
Working Place:
Orange, Connecticut, United States
Company :
2026 Feb 26th Cyber - Avangrid
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