Особисті дані приховані

VLADYSLAV LAVRYNENKO
System Administrator | IT Infrastructure Specialist | IT Operations / Support Engineer
Kyiv, Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація»)

PROFESSIONAL SUMMARY
System Administrator and IT Infrastructure Specialist with 15+ years of hands-on experience in corporate IT operations, infrastructure
support, networking, server administration, virtualization, Microsoft 365 / Google Workspace, CCTV / ACS, documentation, and user
support. Experienced in both internal IT roles and project-based outsourcing environments for small, medium, and enterprise-level
businesses.
Strong practical background in maintaining stable IT services, supporting users and business systems, troubleshooting incidents,
performing onboarding/offboarding, documenting infrastructure, coordinating vendors, and gradually improving security, reliability, and
manageability.

TARGET ROLE AND WORK FORMAT
Target positions System Administrator, IT Infrastructure Specialist, IT Operations
Specialist, IT Support Engineer, IT Manager / Deputy IT Manager
Preferred format Full-time employment; hybrid model preferred: 4 days onsite + 1
day remote. Remote work is suitable for administration,
monitoring, documentation, and planned tasks.
Work focus Internal company IT operations, onboarding support,
infrastructure maintenance, network/server/cloud
administration, documentation, and technical improvements.
Management scope Comfortable as hands-on engineer, senior administrator,
technical lead, or small IT team coordinator.

TECHNICAL SKILLS WITH APPROXIMATE EXPERIENCE
Years are approximate and capped at 12 years as requested. Minimum displayed experience is 3 years.
Area Technologies / Scope Yrs Level
Windows / AD Windows Server, Active Directory, DNS, DHCP, GPO, file services, permissions, RDP 8 Advanced
Workstations Windows client administration, workplace setup, onboarding/offboarding, printers, MFPs, peripherals 12 Advanced
Networking LAN/WAN, VLANs, routing, switching, Wi-Fi, structured troubleshooting, network documentation 10 Advanced
VPN / Remote Site-to-site and remote-access VPN, WireGuard, OpenVPN, FortiClient, branch connectivity 5 Advanced
MikroTik RouterOS, routing, firewall/NAT, VPN, branch routers, CHR, dual-WAN scenarios 8 Advanced
Cisco Switching, routing basics, troubleshooting, enterprise network operations 8 Strong
HPE Aruba Aruba CX switching, VLANs, management, stack/VSF basics, access-layer operations 5 Strong
Fortinet FortiGate firewall, policies, VPN, NAT, remote access, basic segmentation 3 Working+
Grandstream GWN Wi-Fi/networking, access points, controllers/cloud, certified networking knowledge 5 Strong
Virtualization Hyper-V, VMware, Proxmox, VM deployment/support, snapshots/backups, resource planning 6 Strong
Linux Linux Server administration, services, troubleshooting, basic shell and service management 3 Working+
Microsoft 365 Exchange Online, users/groups, domains, Teams, SharePoint, OneDrive, migration/support tasks 3 Strong
Endpoint Mgmt Intune, Entra ID, device enrollment concepts, policies, BitLocker/LAPS planning 3 Working
Google Users, groups, mail/collaboration services, basic administration and support 3 Working+
Workspace
Mail Systems Exchange/IMAP/Kerio-style migration/support, mailboxes, routing, domains, user support 5 Strong
Backup / DR Backup planning, restore checks, data recovery, operational continuity 6 Strong
Monitoring Infrastructure monitoring concepts, alerts, availability checks, Zabbix (installation and maintenance)- 5 Working+
style monitoring requirements
CCTV / ACS CCTV, NVRs, access control, camera networks, user access, troubleshooting, documentation 8 Advanced
Vendors / CCTV Dahua, Hikvision, Provision-ISR, Axis Communications, Milestone XProtect 8 Strong
Documentation Technical documentation, inventories, diagrams, registers, procedures, handover materials 6 Advanced

PROFESSIONAL EXPERIENCE - REVERSE CHRONOLOGICAL
Note: several positions were concurrent, long-term, project-based, or outsourcing engagements. This is reflected in the date ranges.

Network Engineer July 2025 - May 2026
LCC “TvLux” | Kyiv, Ukraine
Scope: Design, deployment, optimization, and technical support of wired and wireless network infrastructure for large hotel properties.
• Supported enterprise Wi-Fi and network infrastructure projects for Radisson and Novotel hotel properties.
• Worked with high-density wireless deployments containing up to 300 access points at a single hotel site.

Vladyslav Lavrynenko - System Administrator / IT Infrastructure CV

• Conducted Ekahau-based wireless surveys and analysis to identify coverage gaps, interference, capacity limitations, and potential access-
point placement issues.
• Contributed to improving Wi-Fi stability, coverage, roaming, and overall guest network performance.

IT Head of Department | March 2024 - March 2026
Miltech Company in Ukraine | Ukraine
Scope: Internal IT leadership role in a defense/miltech environment; cyber defense-related project participation.
• Managed IT infrastructure operations and technical support processes in a security-sensitive environment.
• Participated in a European Space Agency project related to cyber defense.
• Coordinated technical activities, infrastructure support, documentation, access management, and operational stability tasks.
• Worked with network, server, endpoint, cloud, and security-related infrastructure components.
Selected results / projects:
• Supported cyber defense project activities with focus on infrastructure, reliability, and practical operational security.
• Maintained structured IT processes and documentation for internal operations and project support.
CIO | November 2023 - Present
LLC “IdealistCoffee” | Ukraine
Scope: Company IT leadership and infrastructure operations for a multi-location business environment.
• Oversee IT infrastructure, network connectivity, remote access, business systems, user support, and vendor coordination.
• Support branch connectivity, VPN access, network reliability, and operational continuity for distributed locations.
• Coordinate IT support, infrastructure improvements, equipment planning, and technical decisions with business management.
• Maintain practical IT documentation, access control, incident handling, and infrastructure improvement plans.
Selected results / projects:
• Worked on hub-and-branch connectivity, VPN access, router/firewall configuration, and operational network support.
• Supported business-critical systems including remote access, servers, and user-facing IT services.
IT Engineer / IT Manager / Head of Department | September 2021 - Present
Private firm “IT-Avia” - Kyiv Sikorsky International Airport and related projects | Kyiv, Ukraine
Scope: IT operations and infrastructure support in airport-related and related project environments.
• Administer and support corporate IT infrastructure, including servers, workstations, networks, access rights, and business services.
• Support and coordinate technical operations involving network equipment, server infrastructure, CCTV/ACS, user workstations, and
vendors.
• Handle practical troubleshooting, user support, documentation, equipment inventory, and infrastructure improvement tasks.
• Participate in planning and implementation of network, server, security system, and workplace modernization projects.
Selected results / projects:
• Supported airport-related IT infrastructure and operational systems requiring stable daily availability.
• Coordinated infrastructure documentation, support processes, and vendor-facing technical tasks.
Project Engineer / Telecommunications and Communications Lead Engineer | June 2020 - January 2022
LLC “C3-Energy” - projects with BT Ukraine and A1 Telekom Austria Group | Ukraine
Scope: Telecommunications, network infrastructure, enterprise connectivity, and project-based customer environments.
• Worked on telecommunications and infrastructure projects for enterprise customers and telecom-related environments.
• Supported network and communication systems, equipment deployment, troubleshooting, and escalation handling.
• Coordinated technical works, vendor/client communication, documentation, and project execution tasks.
• Participated in field and infrastructure activities involving enterprise networks, connectivity, and customer service continuity.
Selected results / projects:
• Delivered technical support and project work for BT Ukraine and A1 Telekom Austria Group-related projects.
• Handled practical L2/L3-level troubleshooting and communication with stakeholders during project delivery.
Telecommunications Technology and Communications Lead Engineer, Tiers 2/3 | March 2018 - May 2020
LLC “C3-Energy” outsourcing - onsite “AbbVie Ukraine” and “Microsoft Ukraine” | Kyiv, Ukraine
Scope: Outsourced enterprise support role for international corporate environments.
• Provided Tier 2 / Tier 3 technical support for telecommunications, communications, and IT infrastructure services.
• Supported enterprise users, networking/connectivity issues, incidents, escalations, and service continuity.
• Worked onsite with corporate customers, following enterprise support, communication, and documentation standards.
• Coordinated issue resolution with users, internal teams, vendors, and external service providers.
Selected results / projects:
• Delivered onsite infrastructure and communications support for AbbVie Ukraine and Microsoft Ukraine environments.
• Built practical experience in enterprise-level support culture, SLA awareness, incident management, and escalation handling.
IT Manager and Support Engineer | 11 April 2017 - Present
LLC “Globino” | Ukraine
Scope: Long-term IT administration and support engagement covering infrastructure, users, networks, and business systems.
• Administer and support IT infrastructure, users, workstations, network equipment, printers, servers, and business applications.
Vladyslav Lavrynenko - System Administrator / IT Infrastructure CV

• Provide technical support, troubleshooting, onboarding/offboarding, access management, and operational IT assistance.
• Support Microsoft/Windows environments, file access, remote access, backups, and infrastructure documentation.
• Coordinate practical IT improvements, equipment replacement, vendor communication, and routine maintenance.
Selected results / projects:
• Maintained long-term infrastructure continuity and user support across a multi-year engagement.
• Supported day-to-day IT operations while also handling infrastructure improvements and documentation tasks.
IT Administrator | 16 May 2016 - 30 March 2017
State Enterprise “Ukrainian Research and Training Center for Standardization, Certification and Quality” | Kyiv, Ukraine
Scope: Internal IT administration and user support in a public-sector / enterprise environment.
• Administered and supported workstations, user accounts, printers, network access, and daily IT operations.
• Provided technical support to users and assisted with troubleshooting hardware, software, and access issues.
• Supported infrastructure maintenance, documentation, and equipment-related tasks.
Selected results / projects:
• Gained practical internal IT administration experience in a structured organization with formal processes.
Assistant Engineer for UPS Assembly | May 2014 - September 2014
LLC “Pro-Electro” | Ukraine
Scope: Technical assistant role related to UPS assembly and electrical/power equipment.
• Assisted engineers with UPS assembly, technical preparation, and equipment-related tasks.
• Worked with hardware, components, technical documentation, and basic assembly procedures.
• Developed early practical experience with power equipment, reliability, and technical accuracy.

SELECTED PRACTICAL STRENGTHS
• Onboarding/offboarding: accounts, mailboxes, groups, permissions, devices, VPN, workplace preparation, and access revocation.
• Infrastructure operations: Windows Server, AD, network devices, VPN, virtualization, backups, monitoring, and documentation.
• Microsoft 365 / cloud administration: users, groups, domains, Exchange Online, SharePoint, OneDrive, Teams, and migration support.
• Network and security systems: VLANs, routing/switching, firewalls, Wi-Fi, CCTV, ACS, NVRs, and vendor coordination.
• Management communication: able to translate technical risks and infrastructure needs into practical business actions.

EDUCATION
National Aviation University | 2008 - 2015
Kyiv, Ukraine | Institute of Information and Diagnostic Systems
• Master’s degree - English education program.
• Specialization: Engineer-researcher in computerized systems and automatics.
• Institute of Aerospace Control Systems - Bachelor’s degree; specialization: computer-integrated systems.

CERTIFICATIONS AND COURSES
• Grandstream Certified Specialist - Networking Solutions
• MS-102 Microsoft 365 Administrator course / training - 2019
• Cisco CCNA course - 2018
• OWASP Top 10 Pentest / Security QA course - June-July 2024
• Electrical Safety Category 3 - 2020

LANGUAGES
• Ukrainian - native / fluent
• Russian - fluent
• English - Upper-Intermediate

Vladyslav Lavrynenko - System Administrator / IT Infrastructure CV