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Network Security Engineer

Singapore💼 Full-time🗓 2026-07-24 → 2026-09-26

Core

Provide premium technical support and act as a trusted advisor for enterprise customers to resolve complex network security incidents, threats, and attacks across OSI Layers 3, 4, and 7.

Role type

Senior IC Network Security Support Engineer

Builds

Customer trust and resolution of security incidents for enterprise clients using Cloudflare's network security products.

Domain

Internet Security / Network Infrastructure

Deliverable

client delivery

Required skills

DDoS mitigation, firewall rule configuration, SSL/TLS management, network protocol analysis (TCP/IP, DNS, HTTP/S, BGP), packet capture analysis, command line proficiency (curl, dig, traceroute, openssl, git), scripting (Bash, Python, JavaScript), web server configuration (Apache, Nginx, Caddy, IIS), database management (PostgreSQL, MySQL, MS SQL)

Preferred skills

Generative AI and automation tool utilization, knowledge of Magic Transit, Argo Smart Routing, Spectrum, Rate Limiting

Technologies

Magic Transit, Network Firewall, WAF, Spectrum, Rate Limiting, iptables, looking glass, curl, dig, traceroute, openssl, git, Apache, Nginx, Caddy, IIS, PostgreSQL, MySQL, MS SQL

Responsibilities

Diagnose and resolve complex technical issues involving DDoS mitigation, firewall rules, and security configurations; compare traffic signatures to distinguish good from malicious traffic; create and maintain technical documentation; collaborate with Engineering and Product teams to improve tools; utilize AI and automation for log analysis and root-cause analysis.

Seniority

Senior, hands-on IC

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