About the company
Cloudflare runs one of the world's largest networks, powering millions of websites and Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies.
About the role
Cloudflare is seeking an experienced Network Security Engineer to support our largest and most technically sophisticated customers in resolving technical problems, threats or attacks on their infrastructure at OSI Layers 3, 4, and 7. This spans Cloudflare products from Magic Transit Infrastructure Protection, Argo Smart Routing, DDoS mitigation and Network Firewall, to WAF, Spectrum and Rate Limiting.
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 determine what is good traffic and what is malicious
- 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 products and tools
Requirements
- Fluent English speaker is a requirement
- Minimum 3 years working within a Technical Support team solving various technical issues
- Self-driven and capable of learning new technologies / systems / features with little guidance
- Fundamental understanding how the Internet works (OSI Model)
- Advanced understanding of 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 troubleshooting DNS, SSL / TLS, HTTP
- Experience in a web development and / or hosting environment such as installing and configuring web servers like Apache, Nginx, Caddy and IIS
- Experience writing scripts in Bash, Python, JavaScript or other scripting language
- Experience in working as part of a team in a customer-facing role
Bonus points
- Familiar with Cloudflare and actively using our platform
- Worked with PostgreSQL, MySQL, MS SQL, and other database servers
- Fluent and can troubleshoot in other languages beyond English and Spanish
Conditions
- Available location: Austin, TX
- Flexibility to work varying work schedules including: 8:30 AM - 5:30 PM Pacific Time Zone, Tuesday through Saturday, Sunday through Thursday, holidays, weekends, more than 5 days in a row, or additional hours on occasion
- Compensation may be adjusted depending on work location
- Eligible to participate in Cloudflare's equity plan
- Complete package of benefits and programs including medical/Rx insurance, dental insurance, vision insurance, flexible spending accounts, commuter spending accounts, fertility & family forming benefits, on-demand mental health support and Employee Assistance Program, global travel medical insurance