Network Security Support Engineer

Jobtailor

Austin (TX)

On-site

USD 85,000 - 125,000

Full time

14 days+

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Job summary

Jobtailor in Austin, Texas is seeking a technically skilled Support Engineer focused on network security and DDoS mitigation. You will communicate with customers via chat, email, and phone and analyze traffic signatures to distinguish legitimate traffic from malicious activity.

Responsibilities include advising customers on filtering methods using Cloudflare tools such as Magic Transit, Network Firewall, and WAF, and collaborating with Engineering to refine mitigation steps and product

Qualifications

Fluent English is required.
Minimum 3 years in a technical support role.
Fundamental understanding of how the Internet works (OSI Model).
Networking fundamentals including TCP/UDP and iptables.
DNS/SSL/TLS/HTTP troubleshooting experience.
Experience with web servers (Apache, Nginx, IIS) and scripting (Bash/Python/JavaScript).
Ability to work in a customer-facing, team environment.

Responsibilities

Communicate with customers via chat, email, and phone.
Analyze traffic signatures and differentiate good vs malicious traffic.
Advise on filtering malicious traffic using Cloudflare tools and rate limiting.
Collaborate with Engineering/Operations to mitigate attacks and apply appropriate mitigations.
Work with Engineering and Product teams to improve tools and processes.

Skills

Fluent English

Self-driven

Team collaboration

Tools

Cloudflare Tools

Magic Transit

Network Firewall

WAF

IP Reputation Lists

curl

dig

traceroute

openssl

git

Job description

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.

Core Competencies

Demonstrates expertise in technical support with a strong focus on network security and traffic analysis. Proficient in troubleshooting and mitigating DDoS attacks while effectively communicating with customers and collaborating with engineering teams.

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