Contact information

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Work experience

Network system administrator

from 04.2021 to now (5 years 5 months)
Beetroot, Дистанційно (IT)

• Design network infrastructure distributed between different locations
• Configuring and support network hardware (servers, routers, etc.)
• Infrastructure monitoring setup and maintenance: Zabbix, Grafana
• Maintaining and improving VPN
• Deploying and updating network software
• Support virtualization system (Docker, Proxmox, Vmware)
• Backup workflows ( Proxmox Backup Server, Nakivo Backup)
• Configuring and support many services (mail, GitLab, etc.)
• Working with Cloudflare (DNS, email, WAF) and Hetzner
• Maintaining up-to-date configuration and process documentation
• Reacting to the cybersecurity breaches or risks ( ISO 27001)

System administrator

from 09.2015 to 05.2021 (5 years 9 months)
mobile operator Intertelecom, Одеса (Телекомунікації, зв'язок)

• Network planning, operation and maintenance uplinks and IXP's connections (BGP)
• Organization and support internet-based clients by BGP
• Unix-servers (Debian, Ubuntu, FreeBSD) system administrator
• Administration of telecommunications equipment (Cisco Systems, Extreme Networks, A10 networks, Arbor Networks)
• Monitoring systems (Cacti, Nagios, Zabbix)
• Shell and Python scripting

Education

Ukrainian State Maritime Technical University (NUOS)

Кораблебудівний, Миколаїв
Higher, from 1990 to 1996 (6 years)

Additional education and certificates

Standard English/Western Certification, Yappi

2023, 6 місяців
Certificate

Knowledge and skills

• Адміністрування ОС Linux
• Virtualization
• Cisco
• MikroTik
• Налаштування VPN
• TCP/IP
• BGP
• Proxmox VE
• Ansible
• GitLab
• Network security
• Hetzner
• Cloudflare
• Docker

Language proficiencies

• English — average
• Ukrainian — fluent

Additional information

April 2021 - present - outsourcing consulting Beetroot, network system administrator
• Design network infrastructure distributed between different locations
• Configuring and support network hardware (servers, routers, etc.)
• Infrastructure monitoring setup and maintenance: Zabbix, Grafana
• Maintaining and improving VPN
• Deploying and updating network software
• Support virtualization system (Docker, Proxmox, Vmware)
• Backup workflows ( Proxmox Backup Server, Nakivo Backup)
• Configuring and support many services (mail, GitLab, etc.)
• Working with Cloudflare (DNS, email, WAF) and Hetzner
• Maintaining up-to-date configuration and process documentation
• Reacting to the cybersecurity breaches or risks ( ISO 27001)

September 2015 - Apr 2021 - mobile operator Intertelecom, system administrator
• Network planning, operation and maintenance uplinks and IXP's connections (BGP)
• Organization and support internet-based clients by BGP
• Unix-servers (Debian, Ubuntu, FreeBSD) system administrator
• Administration of telecommunications equipment (Cisco Systems, Extreme Networks, A10 networks, Arbor Networks)
• Monitoring systems (Cacti, Nagios, Zabbix)
• Shell and Python scripting

April 2015 - August 2015 - telecommunication company DIDWW, system administrator
• Аdministration Linux-servers ( Debian, CentOS)
• Аdministration services : Web (nginx), mail (postfix), DNS (nsd, unbound)
• Maintenance servers using configuration management system (Ansible)
• Documenting activities of the equipment in a centralized system configurations (Git)
• Support network monitoring systems (Zabbix, NetXMS)
• Support virtualization system (VMWare vSphere)
• Network support offices based on Juniper routers (Juniper SRX)

2008-2015 - telecommunication company "Vega", network team lead
• Technical support with Tier1 upstreams, traffic engineering
• Organization and support internet-based clients by BGP
• Organization and support of the transport connections for customers using the technology of MPLS-network (L2 VPN, L2 VPLS, L3 VRF)
• Configuring the backbone network and special databases (RIPE, DNS) in the organization of client connections
• Documenting the activities of the equipment in a centralized system configurations
• Service and support network monitoring systems (HP NNMi, cacti)
• Work with national and international Internet service providers on troubleshooting BGP routing
• Performance of work to integrate and support clients on international projects (Verizon, British Telecom, Expereo)
• Team leadership

2001-2007 - internet provider "Ucomline", lead network engineer
• Organization and support internet-based clients by BGP
• Organization and support of transport links clients using Frame Relay technology
• Configuring the backbone network and special databases (RIPE, DNS) in the organization of client connections
• Documenting the activities of the equipment in a centralized system configurations (subversion)
• Work with national and international Internet service providers on troubleshooting BGP routing
• Service and support network monitoring systems (HP OpenView, cacti)
• Configuration and hardware support VoIP (Cisco AS5300 Series and MC3810)
• Support and maintenance of servers based on the Solaris system software and hardware switch Cisco PGW 2200 Traffic VoIP
• Recruitment, training and supervision of staff NOC
• Team leadership

1999-2001 - Nikolaev Directorate of Ukrtelecom OJSC, lead network engineer
• Configuration, installation and administration of servers central node in Nikolaev (routing, mail, proxy, DNS)
• Remote administration of 17 regional communication centers "Ukrtelecom"
• Interaction with the central site of JSC "Ukrtelecom" for routing and ip-address
• Maintaining and support server segment (FreeBSD)

1997-1998 - internet provider AgroInformPartner, support service engineer
• Technical support for customers of ISP
• Setup of user-end networking devices