Specialties: Linux, NGINX, Load Balancers, Reverse Proxies, WAF, DDoS Defense, SSL, DNS, nftables/iptables, ufw, DPI, IPS, IDS, SIEM, VPNs, BGP, GRE Tunnels, Botnets, Bitcoin, Crypto currency, TCP/IP traffic analysisVendors: Cisco, Juniper, Palo Alto, F5, Citrix, Arbor Netscout, AWS, GCP, Nessus, QualysFrameworks: PCI, SOC2 Type 1 & Type 2, Incident Response and Disaster Recovery planningTools: Git, Ansible, Zabbix, NTopNG, Burp, tcpdump, wireshark, nmapLanguages: Python, Bash, JavaScript, PHP, PerlMy security career has focused on operating and architecting attack resistant networking for large corporate environments and startups. I'm proficient in Linux administration, Network Security, and routing in Juniper, Cisco, Palo Alto, & Linux environments, and network sniffers. I have architected and operated on special purpose DDoS equipment. I have several years experience with Debian, Ubuntu, Red Hat, and Kali based Linux distributions and containerization using Kubernetes and Docker.
[Redacted]
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Security Engineer[Redacted]United States
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Principal Network Security EngineerRumble Feb 2023 - Sep 2024Toronto, Ontario, CaI helped build the Rumble CDN writing Linux configs for web, firewall, logging, and DDoS mitigation. For SOC2 compliance, I wrote the Rumble Change Management procedures and I was Security's representation on the CMB and I wrote the Rumble Incident Response Plan and managed table-top exercises. -
Principal Security EngineerSunshine Dec 2020 - Feb 2023Palo Alto, California, UsI managed the AWS VPC and Security Groups, VPNs, SSO, and SSH keys. I managed CrowdStrike Falcon installs and set up Netflow / Flowlog collection. I contributed to Linux deployments, firewalls, and app development on iOS and Android. I managed PenTests on these environments and worked with engineers to remediate findings. -
Network Security Principal Systems EngineerSalesforce Apr 2018 - Jul 2020San Francisco, California, UsI wrote the Salesforce DDoS Incident Response Playbook. I implemented traffic alerts, escalation criteria, and countermeasures for on-premises and cloud mitigation. I designed and held training walk-throughs as well as live-fire DDoS exercises. I helped manage tapping, detection, mitigation equipment, architectural upgrades, and future expansion. As a result, Network Security improved DDoS response times from hours to minutes. -
Principal Network Security EngineerF5 Networks Apr 2013 - Feb 2018Seattle, Washington, UsI built and trained the F5 Silverline DDoS SOC to defend bank and financial customers. I wrote the F5 Silverline DDoS Incident Response procedures and trained the engineers in PCI compliance. I implemented attack identification, alerts, countermeasures, and ticket management. I assisted the Sales with technical presentations and PoCs. -
Sirt - Security Incident Response TeamApple Feb 2012 - May 2013Cupertino, California, UsI handled emergency response to company-wide threats including: Mac & iOS exploits, account compromises, network and application vulnerabilities, botnets, honeypots, network logging and investigation, forensics, and legal consultation. I implemented a system of ticket categorization, tracking, and post incident reviews. -
Security Network Engineer IvVerisign Feb 2011 - Feb 2012Reston, Virginia (Va), UsI mitigated DDoS attacks against Fortune 10 clients, including organizing emergency response. I designed and implemented BGP & GRE tunnels and reverse proxies to defend bank and financial customers following PCI compliance. I wrote firewall rules, analyzed logs, and troubleshot customer connectivity. -
Ddos Security OperationsProlexic Technologies Jun 2007 - Jan 2010I mitigated DDoS attacks against financial institutions. I managed worldwide network-to-network connectivity, including BGP, GRE tunnels, VoIP, and TCP/IP communication of all kinds for bank and financial customers. I wrote firewall rules, analyzed logs, troubleshot customer firewalls, and Unix/Linux servers that were setups under attack.
Frequently Asked Questions about Ken S.
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Ken S. works for [Redacted]
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Ken S.'s current role is Security Engineer.
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