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Work experience

IT Specialist | Network and Computer Systems Administrator

from 03.2019 to now (6 years 5 months)
Raben Ukraine, Київ (Транспорт, логістика)

• Installation, configuration, and maintenance of LAN, WAN, and WLAN infrastructures.
• Network modeling, analysis, planning, and coordination of network and data communications hardware and software.
• LAN administration, including VLANs, trunk and access ports, STP/RSTP/MST tuning and protection mechanisms, and EtherChannel bundles, Port Security, DHCP Snooping, Dynamic ARP Inspection.
• WAN administration: routing, IPv4/IPv6, subnetting, ACLs, high availability (HA), BGP, OSPF, NAT, QoS, SD-WAN.
• WLAN administration: radio frequency components, measurements, signal and antenna concepts; WLAN typologies, architecture, design, and survey; security and troubleshooting.
• Server hardware and virtual infrastructure administration, both on-premise and cloud:
▫ HP ProLiant, Dell PowerEdge, and IBM System X server platforms
▫ VMware vSphere: ESXi, vCenter management, storage and networking setup, virtual machines and vApps administration
▫ Virtual SAN management
▫ VMware Cloud Director
• Network and server resource monitoring, access control, software installation and upgrades, and software license management.
• System monitoring to ensure network and server resource integrity and availability.
• Reviewing system and application logs and verifying completion of scheduled jobs, including backups.
• Network configuration management and automation using Ansible and Git.
• Virtual environment backup using VEEAM Backup & Replication with continuous backup validation using SureBackup to ensure recoverability, completeness, and integrity. Off-site backup replication adhering to the 3-2-1 backup strategy.

Education

Державний університет інформаційно-комунікаційних технологій

Комп`ютерна інженерія, Київ
Higher, from 2019 to 2023 (4 years)