C

Cloudflare

Secures websites and runs apps on its network

Network Security Engineer

Implementation & Technical Account ManagementConfirmed live in the last 24 hours
Full-timeNo salary listed

About the Job

Requirements

  • A minimum of 4 years of experience as a Network Security Engineer, Technical Support Engineer, or Senior Support Engineer supporting networking or web security products.
  • Strong troubleshooting and problem-solving skills, with the ability to explain complex concepts to customers.
  • Strong understanding of TCP/IP, DNS, HTTP/S, BGP, anycast routing concepts and implementation, iptables, and looking glass tools.
  • Experience troubleshooting network connectivity issues, BGP routing, and GRE tunnels, and performing packet-capture analysis.
  • Confidence using command-line tools including curl, dig, traceroute, OpenSSL, and Git.
  • Experience in a web development or hosting environment, including installing and configuring web servers such as Apache, Nginx, Caddy, and IIS.
  • Competence writing scripts in Bash, Python, JavaScript, or other scripting languages.
  • Experience working with PostgreSQL, MySQL, MS SQL, and other database servers.
  • A bachelor's degree in Computer Science, Cybersecurity, or a related field, or equivalent experience.
  • Strong customer-service orientation and communication skills; ability to work independently and collaboratively in a fast-paced, dynamic environment.

Responsibilities

  • Serve as a trusted technical advisor for enterprise customers by responding to and resolving network security and performance inquiries and incidents, while providing timely, high-quality, personalized assistance.
  • Diagnose, troubleshoot, and resolve customer technical issues involving DDoS mitigation, firewall rules, SSL/TLS, network configuration, and other security configurations.
  • Create and maintain knowledge-base articles, technical guides, and troubleshooting documentation for internal and customer use.
  • Compare traffic signatures and attributes, including IP addresses, cookie variations, HTTP headers, and JavaScript footprints, to identify legitimate and malicious traffic.
  • Advise customers on mitigating DDoS attacks at OSI layers 3, 4, and 7 using Cloudflare tools such as Magic Transit, Network Firewall, Web Application Firewall, IP reputation lists, packet inspection, blocklisting, allowlisting, and rate limiting.
  • Work with Engineering and Product teams to improve products and tools.
  • Use generative AI and automation tools to streamline log analysis, accelerate root-cause analysis during security incidents, and optimize customer response times.

Desired Qualifications

  • Relevant certifications such as CISSP, GCIA, GCIH, GCFA, GCFE, or equivalent.

About the Company

Cloudflare

Secures websites and runs apps on its network

Cloudflare operates a network that protects websites, delivers online content and runs applications closer to their users. Businesses connect websites and internal systems to its services to filter malicious traffic, control access and improve performance, with security and computing running on shared infrastructure. Developers combine application code, object storage and databases with the network used for content delivery and traffic protection. Cloudflare earns revenue from subscriptions and usage charges, with free plans for basic features and negotiated contracts for larger organizations. Cloudflare was founded in 2009 and is headquartered in San Francisco, California.

Company size
1,001-5,000
Company stage
IPO
Headquarters
San Francisco, CA
Founded
2009

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