Activity: Maintenance of Application KYIV DIGITAL and city Data-Center Achievements: Properly work of it - infrastructure, configuring right work of BGP connection, implementing security project with Palo Alto decisions

IT infrastructure's, MDF/IDF maintenance, device provisioning, design, implement, and maintain highly available and fault tolerant network routing/switching/security. IP/Data-plane and Control plane creation, coordinating and performing daily corporate problem resolutions supporting telecommunications hardware/software issues - terminal servers, AP wireless, bridges, switches and routers, local storages, clusters, backplane. Supporting and proliferating network security in the form of firewall, IDS/IPS, and VPN solutions - Fortigate and Palo Alto, Policy Based Routing, IP-mapping (NAT translation), access and authorization providing. Performing protocol analysis on various network architectures. Managing assigned projects and assigning tasks to supporting Network Engineers and other technical staff with supervision from Team Lead/Manager, budget expenses tracking.

L2: provisioning - PO, VXLAN, LAG, LACP, RSTP, BAG, AAA, BPDU, GRE, L2TP, MPLS. L3: provisioning - IP routing, BOOTP/DHCP, ACL, IGMP, PBR, VRF, OSPF, RIP, IS-IS,, BGP, IGRP, IGP, EGP, ISMP, AS(LIR), VRRP (HSRP), SSL VPN, IP Sec, NAT. Other: TCP, UDP, DNS, LDAP, RADIUS, VoIP/SIP, Firewall, IDS, Servers and VM network provisioning. Developing reference materials (network diagrams, documentation) for it - infrastructure. Identifying areas of improvement and development plans for associated changes required. Maintenance of CloudFlare, Linux Web services, Access control to resources, Add Policy (PBR), DNS, AD, DC’s support, DCS.

Security Services implementation - SSO & MFA Octa for MS Azure AD user’s, implementing endpoint protection Cortex XDR with NGFW integration

AWS - configuring E2 instances, Lambda, Basket S3, VM, Route53, Direct Gateway

Type of Equipment:HPE, Aruba, Cisco, Extreme network, Lenovo, DELL, Fortigate, FortiAnalyzer, PaloAlto, AP-Aruba and Controller maintenance (upgraded devices to WiFi6 802.11ax).

Activity: Kyivstar Project

Achievements: Satisfied customer feedback, minimizing customer waiting time

Maintenance of Data-Centres and LAC of Kyivstar infrastructure, servicing Ethernet switching, LAG, VRRP/HSRP, SPAN, Flow Control, IP-routing, BGP, OSPF, balancing IP-traffic Round Robin, HASH, building fault-tolerant network - MPLS VPN, VPLS; management and monitoring networks, alarm clean-up and properly work testing.

Providing engineering services for hardware equipment, newest solution commissioning, integration and data configuration, interface with clients, vendors, and R&D team while providing resolution to incidents as escalated client tickets. Report and track design, reliability and maintenance problems or bugs to R&D engineering groups

IP routers and switchers service providing.

Type of Equipment:ZTE ZXR, ZTMP

Activity: Government

Achievements: Great work of it - team

Developing reference materials (network diagrams, documentation) for it - infrastructure. Identifying areas of improvement and development plans for associated changes required. Network-equipment Upgrade

Switches/AP: Contractor control for racking, stacking and stretching in MDF works, managing patch panels in IDF and MDF, licensing, basic configuration of access switches, data distribution and Core switches. Configuring AP in Meraki Dashboard 802.11ax.

Firewalls: Configuring L3 routing, Policy routing and NAT translation, licensing & HA mode active-active, SSL VPN configuring and access providing.

PBX/VoIP: (Twilio, Verizon, Kyivstar): Migrate call center to clouds (IAS), replace the newest equipment, assist with VoIP team configuring, return the system on-prem Cisco BM6000 (Cisco communicator).
Users equipment:(Dell 5420 & 7420): Imaging corporate OS, distribution to users, providing support in the office and remotely, resolution to incidents as escalated client tickets, opening and maintaining appeals for supporе (Jira, ServiceNOW, and so on)

Participation in weekly meetings, strategy discussions, and keeping a tracker list of completed duties. Provide access(due to the request system), and the software installation of servers on-premise and AWS hosts, and adding hosts to the monitoring system.

Purchase of equipment, communication with suppliers, sales and support managers, Inventory, and the write-off for disposal. Budget expenses design, CAPEX/OPEX.

Gained experience with Software:CyberArk, ZOHO, OKTA Verify, Jira, ServiceNow

Type of Equipment:MERAKI MS450, MS390, AP M36, NEXUS C9300, BM6000, Catalyst 2960, ISR4430, ASR1000X, PA3220, PA220, DELL, INTEL, BloxOne B105.

Activity: Production of furniture

Achievements: Ensuring correct operation of services and availability of branches

Re-organization, construction of IT infrastructure at the factory,

Setuping a video surveillance system (hikvision, dahua), installing cameras and cables areas, video-wall configuring, work with DVR.

Configuration of the system (servers, storages, skud) of access control and accounting (U-Prox ACS, hikvision)

Contractor control for racking, stacking and stretching in MDF works, managing patch panels in IDF and MDF, licensing, basic configuration of access switches, data distribution and Core switches. Configuring AP in Meraki Dashboard 802.11ax.

Organization of reliable communication channels by branches, retail space (L2TP + IPSec, GRE, Tunel + IPSec)

Construction of a "retail management system" and a system for monitoring the availability of nodes

Organization of fiber-optic trunk line within the enterprise

Configuration and maintenance of servers: Citrix XenServer, FreeNAS, CentOS8 + PHP + MariaDB, CentOS8 + Zabbix + kakti, Solarwind (ipmonitor ....), Windows Server 2019 (1C, UPROX, AD), virtualization on ESXI, Hyper-V, Xen Server SSL certification for domain names

Purchase and maintenance of equipment, PCs, servers, switches (Mikrotik, Fortinet, HP-ProCurve, Dell),Organization of workspaces, installation of cable systems, IDF maintenance.

Activity: Exhibition
Achievements: Ensuring correct operation of communications and services

Exhibition of digital - immersive art, multimedia art space - SAMSKARA

Preparation of the exhibition "Mysterious Japan" • Design, installation, maintenance of a local area network, • work with the equipment - Mikrotik RB2011UAiS \ 951 \ 961, Ubiquiti UniFi AP AC Long c OpenWRT.

HPE, Tenda, POS terminals. Installation and maintenance of exhibition stands. • Work with projectors ACER, BenQ, Optoma, Panasonic.

Spherical cinema, mapping, interactive animation. • Xbox-Kinect \ VR HTC VIVE service, LED mapping, PC-controlled (Linux \ Windows \ iOS)

Wi-Fi zone setting, seamless - roaming.

Maintenance of the control system - installation of the exhibition on the iOS tablet.

Activity: Wholesale

Achievements: Ensuring correct operation of services and availability of branches

• Purchase and configuration of workstations and equipment
• Setting up and sending - equipment for trading platforms (regions of Ukraine)
• Acquisition, maintenance, and monitoring - constant availability of branches.
• Replacement and audit of consumables for office equipment
• User support, update - OS, 1C, Medoc

Activity: Local Internet Service Provider

Achievements: Foundation, design network, cables system installation

• Architecture, construction of a local area network
• Installation of cable (connection of clients (apartments, offices), houses
• Configure PC and client routers, user support Administration of the network, firewalls (NAT)
• Web-servers on Linux
• Development of design - advertising brochures,
• One of the creators of the network

Activity: Energy and Energy

Achievements: Ensuring correct operation of services

• User support (40 PCs).
• Support for Windows department servers (AD, DNS, DHCP, Mail, File)
• Maintenance and cleaning of copiers. Installation of cable networks, LAN design
• User support (40 PCs)
• Support for Windows department servers (AD, DNS, DHCP, Mail, File)
• Maintenance and cleaning of copiers
• Installation of cable networks, LAN design

Activity: Education

Achievements: Ensuring correct operation of communications and services

• Basics of programming
• Means of information processing
• Telecommunication networks
• Operating systems
• Electrical engineering
• Technical support and administration of the classroom and the network of the educational institution (assistant system administrator):
• Audience
• LAN (800 machines)
• Design, site creation
• Web Design courses for school students

Activity: Development, Project METRO

Achievements: Ensuring correct operation of communications

• Installation of cable for security systems and telecommunications equipment (intercom, LAN), residential buildings, offices ..
• Installation of cable networks (VOLS, Twisted pair 7a-cat. METRO C&C m. Pochayna)