Senior Network Security Engineer
Core
Senior Network Security Engineer responsible for L3 escalation, firewall configuration, and hybrid-cloud network operations.
Role type
Senior IC network security engineer
Builds
Production network infrastructure, security configurations, and automated security workflows
Domain
Cryptocurrency / Cloud Networking
Required skills
Network security, Firewall configuration, Routing and switching, Incident response, Hybrid-cloud networking, Networking protocols (BGP, OSPF, IPsec, HSRP, QoS), AWS VPC, AWS Direct Connect
Preferred skills
FortiGate, Cisco ASA, Akamai WAF, anti-DDoS solutions, Arista switches, Cisco routers, F5 LTM/GTM, Infoblox DNS/DHCP, CCNP, CCIE, AWS Certified Advanced Networking, CISSP, Infrastructure as Code, Network automation, Security orchestration (Tines, n8n, Dify), Data-center-to-AWS migration
Technologies
AI, AWS Cloud, Cisco, DevOps, FortiGate, Support, n8n, Network Security, WAF, Firewall
Responsibilities
Serve as primary Level 3 escalation point for complex network infrastructure, routing, and security configuration issues; Configure, maintain, and optimize FortiGate and Cisco ASA firewalls, along with Akamai WAF and anti-DDoS solutions; Identify and resolve network issues, bottlenecks, and vulnerabilities across Arista switches, Cisco routers, F5 load balancers, and Infoblox DNS/DHCP services; Develop and maintain documentation covering network topology, hybrid-cloud designs, system security configurations, and operational procedures; Collaborate with DevOps teams to apply Infrastructure as Code and automate network deployments and security workflows; Research and use automation and AI tools, such as Tines, n8n, and Dify, for security orchestration or network task automation; Provide escalation support outside office hours when needed for major live cutovers or critical network emergencies
