Response Engineer (Cloudflare Managed Defense Center)

Cloudflare's Managed Defense Center as a Response Engineer, where you'll be the primary technical responder for our premium enterprise customers. You'll investigate complex threat telemetry, handle live incident responses for sophisticated DDoS and application-layer attacks, and analyze traffic anomalies during high-pressure events. You'll also implement robust mitigation strategies, monitor and investigate proactive alerts, and act as the primary technical contact for customers during active security incidents. This role requires a strong background in security and networking, as well as the ability to work 24/7 in a fast-paced environment.

We are looking for an analytical security practitioner who thrives in this always-on operational environment and bridges the gap between deep technical analysis and premium customer advisory

Responsibilities

• Investigate complex threat telemetry, handle live incident response for sophisticated attacks, and analyze traffic anomalies during high-pressure events.
• Implement robust mitigation strategies for complex attacks across OSI Layers 3, 4, and 7 using Cloudflare's suite of security tools.
• Act as the primary technical contact for customers during active security incidents, driving high-touch, consultative communication with customers' technical engineering teams.

Requirements

• Experience building or querying dashboards in Prometheus and Grafana for performance and attack metrics (Preferred)
• Proven capability to handle both Application Security (including knowledge of OWASP Top 10 vulnerabilities, L7 WAF, HTTP/S anomalies, Bot mitigation) and Network Security (L3/L4 volumetric DDoS, protocol abuse)
• Operational understanding of internet protocols including TCP, UDP, ICMP, GRE, BGP, DNS, with the ability to quickly diagnose attack fingerprints and infrastructure impact during volumetric DDoS attacks
• Extensive experience managing technical communications with enterprise customers during high-stress, active attacks, with the ability to remain calm under pressure and translate complex attack data into clear actionable advice
• 4–7 years of direct, hands-on experience in Managed Detection and Response (MDR), advanced Security Operations, or high-level Technical Support/Incident Response for enterprise infrastructure

Preferred

• Hands-on experience with packet capture (e.g., tcpdump, Wireshark, tshark) or HTTP traffic inspection (e.g., HAR, Burp Suite) to analyze malicious traffic
• Highly valued security and networking certifications such as GIAC (e.g., GCIA, GCIH, GCFA, GCFE), Cisco CCNA/CCNP, or equivalent hands-on incident response credentials (Preferred)
• Proficiency in Linux/Unix environments and strong scripting skills (Bash, Python preferred) for workflow automation (including experience leveraging agentic AI environments or LLMs to optimize operations) and experience interacting with REST APIs or GraphQL to pull and correlate operational data (Preferred)
• Knowledge of industry security technologies (e.g., enterprise CDNs, cloud-based DDoS scrubbing centers, Next-Gen WAFs, and edge network firewalls) (Preferred)
• Working knowledge of threat frameworks such as MITRE ATT&CK to classify adversary behavior and inform detection and mitigation strategies

Ability and willingness to work 24x7 rotating shifts to support global operations