Network Security Engineer.

An engineer who designs and operates an organization's network defenses — firewalls, NGFWs, segmentation, VPN/ZTNA, NDR, secure web/email gateways, DNS hygiene — and pairs network telemetry with detection content. Pertence à categoria Funções e carreiras da cibersegurança.

An engineer who designs and operates an organization's network defenses — firewalls, NGFWs, segmentation, VPN/ZTNA, NDR, secure web/email gateways, DNS hygiene — and pairs network telemetry with detection content.

A Network Security engineer designs, deploys, and operates the controls that govern how traffic moves into, out of, and across an organization's networks. Responsibilities typically include perimeter and internal firewall policy (Palo Alto, Fortinet, Cisco), microsegmentation and zero-trust network access (Illumio, Cisco Secure Access, Zscaler, Cloudflare Access), VPN and SASE deployments, IDS/IPS and NDR tuning (Zeek, Suricata, ExtraHop, Vectra, Darktrace), secure-web-gateway and DNS security (Cisco Umbrella, Zscaler ZIA, Cloudflare Gateway), DDoS mitigation, certificate and PKI hygiene, and pairing network telemetry (NetFlow, pcap, DNS logs, TLS metadata, JA3/JA4) with SIEM detections. The role increasingly extends into cloud networking (security groups, VPC flow logs, Azure NSGs, GCP firewall rules), zero-trust architecture, and OT network segmentation. Strong network security engineers understand routing, switching, TLS/PKI, modern network architectures (SD-WAN, SASE, mesh VPNs), and at least one cloud's networking stack. Certifications often associated: CCNP Security, Palo Alto PCNSE, Fortinet NSE, GIAC GCFW / GCIP, and AWS / Azure networking specialties.

As defesas contra Network Security Engineer costumam combinar controles técnicos e práticas operacionais, conforme detalhado na definição acima.

Nomes alternativos comuns: Network defense engineer, Firewall engineer.