C

Cloudflare

Secures websites and runs apps on its network

Network Security Engineer

Implementation & Technical Account ManagementConfirmed live in the last 24 hours
Full-timeLisbon, Portugal

About the Job

Responsibilities

  • Communicate with customers via chat, email, and phone.
  • Compare traffic signatures and attributes, including IP addresses, cookie variations, HTTP headers, and JavaScript footprints, to distinguish legitimate traffic from malicious traffic.
  • Advise customers on mitigating distributed denial-of-service attacks across 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 Operations teams to mitigate attacks, recommend mitigation steps, and apply appropriate mitigation when applicable.
  • Work with Engineering and Product teams to improve products and tools.

Desired Qualifications

  • Fundamental understanding of how the Internet works, including the OSI model.
  • Advanced understanding of modern Internet protocols such as TCP and UDP.
  • Computer networking fundamentals and experience with iptables and looking glass.
  • Experience troubleshooting network connectivity issues, BGP routing, and GRE tunnels.
  • Packet capture analysis experience.
  • Experience using command-line tools including curl, dig, traceroute, openssl, and git.
  • Experience troubleshooting DNS, SSL/TLS, and HTTP.
  • Experience in a web development or hosting environment, such as installing and configuring Apache, Nginx, Caddy, or IIS web servers.
  • Experience writing scripts in Bash, Python, JavaScript, or another scripting language.
  • Experience working as part of a team in a customer-facing role.
  • Fluency in German, Japanese, French, Spanish, Portuguese, or Mandarin is a bonus.
  • Experience with PostgreSQL, MySQL, MS SQL, or other database servers is a bonus.
  • Familiarity with Cloudflare and active use of its platform is a bonus.

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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