Response Engineer - CMDC

Cloudflare•San Francisco, CA

2d•Hybrid

About The Position

The Response Engineer provide premium-level support for Cloudflare’s security products and features. Our largest and most technically sophisticated customers will contact Cloudflare Managed Defense Center for assistance and intelligence in dealing with threats or attacks on their infrastructure at OSI Layers 3, 4, and 7. This will span the range of Cloudflare security products from Magic Transit Infrastructure Protection, DDoS mitigation and Network Firewall, to using the Web Application firewall (WAF), Spectrum, Bot Management and Rate Limiting to help customers. Response Engineers analyze threats, make detailed and informed suggestions for mitigation and may need to implement mitigation strategies directly on behalf of the customer. The team also provides attack reporting beyond Cloudflare’s self-service reports.

Requirements

Strong understanding of the OSI model, TCP, UDP, BGP, QUIC
Advanced understanding of iptables
Analysis of traffic for attack anomaly detection and creation of mitigation rules
Experience in handling attack mitigation and thorough knowledge of various attacks (L3/4 and L7)
At least 2 years of technical support experience and customer support experience is a must
Strong communication skills with high-value customers
Command line / Bash shell Sysadmin skills (Linux/Mac/Windows)
Programming skills (Python, Ruby, PHP, C, C#, Java, Perl, Git etc.)

Nice To Haves

Security skills and certifications preferred: CISSP, GCIA GCIH, GCFA, GCFE, etc.
Previous DDoS mitigation for OSI layers 3,4, & 7, filter malicious traffic using Cloudflare tools like Magic Transit, Network Firewall, WAF, IP reputation lists, packet inspection, blacklisting, whitelisting, and/or rate limiting is a plus

Responsibilities

Monitor and investigate the alerts to identify attacks
Work with Engineering and Operations teams to mitigate attacks, suggest steps to mitigate, and apply the appropriate mitigation, when applicable
Work with Engineering and Product teams to improve the products and tools
Extensive communications with customers via chat, email, and phone
Review the latest alerts to determine relevancy and urgency.
Create new tracking tickets for alerts that signal an incident and require review or escalation
Configure / Manage security monitoring rules and contribute to tool improvements
Compare traffic signatures and attributes including IP addresses, cookie variations, HTTP headers, and JavaScript footprints to determine what is good traffic and what is malicious
Participation in a weekend and holiday rotation required with main working hours 9 to 5 Pacific time