Romans Pogosovs

About Romans Pogosovs

Network Security ProfessionalHighly effective and process oriented individual with 17 years of wide experience in Network Engineering and Information SecurityWorked across multiple industries such as IT consulting, Healthcare, Gaming and Social Networking in both CORPORATE and PRODUCTION rolesStrong knowledge of working though the different stages of the firewall/router access controls such as initial implementation, ongoing audits, improvements and risk reduction, security policy reviews and change controlStrong knowledge of remote/local access and control technologies such as Palo Alto Networks, Cisco ISE, Pulse Secure Strong knowledge of DDOS detection, alert and management tool such as Arbor, Radware and edge security policies and filtersAbility and desire to rapidly learn new skills and technologiesStrong written and verbal communication and interpersonal skills with ability to interact with all employees High ability to think out of box for solutions to technical problems, meet and manage operational deadlines, can work under pressureTeam player, reliable and ability to work independently in fast-paced environment AREAS OF EXPERTISENetwork audit and risk remediationRemote access and implementation and audit of the firewall/router security policiesSecuring Network access with tools and configurationDDOS mitigations through 3rd party tools and defensive device configurationsDevelopment and maintenance of SOPs, change controls and run-booksProject advisements for the non-networking teamsJuniper, Cisco, Arista, Pulse SecureTroubleshooting and problem solving Load balancers (A10, F5)CDN (Akamai, Edgecast, Fastly)Bash, Python, Jira/confluenceRancid, LogicMonitor, ZabbixAruba and Cisco wirelessBGP, OSPF, L2SNMP, DNS, IP, TCP

Experience

1. Senior Network Engineer

   Twitter

   Jun 2014 — Present · US

   Designed, configured and supported secure remote access for 20+ Twitter offices including contractors and home office users using Palo Alto Networks PA-5220 firewalls. Migrated Twitter remote access from Pulse Secure Access to Palo Alto Networks firewalls.Created a comprehensive network risk audit process for the Twitter corporate networkParticipated in the development and implementation of the network change control policies, standards, and supporting procedures and run-booksCreated, maintained, and audited production and corporate firewall/router security policies and configurationImplemented on-prem Radware DDOS detection and protection environmentDesigned and implemented RADIUS access control using Pulse Policy Secure, which gates access to 10K+ network devices of multiple vendors with multiple groups and levels of gradual controlDesigned and implemented Cisco ISE as on-prem network access controlMigrated corporate network monitoring from Zabbix to LogicMonitor.Participated in migrating Cisco Wireless infrastructure to Aruba cloud.Worked regularly with stakeholders from partnering teams influencing Twitter’s ability to deliver large-scale projects while achieving business objectivesImplemented successful migration plan for 100s of production VIPs from older F5 platforms to newer A10 platforms