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Response Engineer - CMDC

Austin, TX💼 Full-time🗓 2026-09-01 → 2026-09-26

Core

Provide premium-level support and threat response for Cloudflare's security products to large, technically sophisticated customers facing attacks on their infrastructure.

Role type

Senior IC security response engineer (network security)

Builds

Mitigation strategies and actionable intelligence for email, application, and network threat surfaces

Domain

Cybersecurity, Network Security, DDoS Mitigation

Deliverable

client delivery

Required skills

OSI model (L3/L4/L7), TCP/UDP/BGP/QUIC, iptables, attack anomaly detection, Linux/Mac/Windows sysadmin, Bash shell, Python/Ruby/PHP/C/C#/Java/Perl, customer support experience

Preferred skills

CISSP, GCIA, GCIH, GCFA, GCFE, DDoS mitigation experience, Cloudflare tools (Magic Transit, WAF, Spectrum)

Technologies

Magic Transit, Network Firewall, WAF, Spectrum, Bot Management, Rate Limiting, iptables, Linux, Bash, Python, Ruby, PHP, C, C#, Java, Perl, Git

Responsibilities

Monitor and investigate security alerts to identify attacks; Configure and manage security monitoring rules; Compare traffic signatures (IPs, headers, JS footprints) to distinguish good vs. malicious traffic; Collaborate with Engineering and Operations to implement mitigations; Communicate with customers via chat, email, and phone; Create tracking tickets for incidents requiring escalation

Seniority

Mid-Senior, hands-on IC

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