Cloudflare Network Security Engineer

2 semanas atrás


Lisboa, Lisboa, Portugal Cloudflare Tempo inteiro

Job Title: Cloudflare Network Security Engineer

Job Summary: We are seeking a highly skilled Network Security Engineer to join our team at Cloudflare. As a Network Security Engineer, you will be responsible for resolving technical problems, threats, or attacks on our customers' infrastructure at OSI Layers 3, 4, and 7.

Key Responsibilities:

  • Communicate with customers via chat, email, and phone to resolve technical issues.
  • DDoS mitigation for OSI layers 3, 4, & 7: advise customers on how to filter malicious traffic using Cloudflare tools like Magic Transit, Network Firewall, WAF, IP reputation lists, packet inspection, blocklisting, allowlisting, and rate limiting.
  • 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.

Requirements:

  • Fundamental understanding of how the Internet works (OSI Model).
  • Advanced understanding of modern internet protocols like TCP and UDP.
  • Computer Networking fundamentals, experience with iptables and looking glass.
  • Experience troubleshooting network connectivity issues, BGP routing, and GRE tunnels.
  • Packet capture analysis.
  • Experience in command line and tools, including curl, dig, traceroute, openssl, git.
  • Experience in a web development and/or hosting environment such as installing and configuring web servers like Apache, Nginx, Caddy, and IIS.
  • Experience in working as part of a team in a customer-facing role.

What We Offer:

  • A dynamic and supportive work environment.
  • Opportunities for professional growth and development.
  • A competitive salary and benefits package.

Cloudflare is an Equal Opportunity Employer: We are committed to providing equal employment opportunity for all people and place great value in both diversity and inclusiveness. All qualified applicants will be considered for employment without regard to their, or any other person's, perceived or actual race, color, religion, sex, gender, gender identity, gender expression, sexual orientation, national origin, ancestry, citizenship, age, physical or mental disability, medical condition, family care status, or any other basis protected by law.



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