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Sergii Goncharenko
[open contact info](look above in the "contact info" section) | 🇺🇦 Kyiv, Ukraine

Profile
Experienced and dependable IT Infrastructure Manager with over 15 years of experience in
system administration and network engineering. Proven expertise in Windows Server, Microsoft
Azure, Office 365, virtualization platforms, and security solutions. Strong background in
managing complex hybrid (on-premises and cloud) infrastructures, including deployment and
administration of Azure-based services, while ensuring high availability, optimal performance,
and compliance with security standards.

Core Competencies
• Microsoft Entra ID (Azure AD) & Hybrid Identity
• Microsoft Azure (VMs, Networking, Storage, Backup)
• Identity & Access Management (IAM), Conditional Access
• Hybrid Exchange & Azure AD Connect
• Windows Server & Active Directory
• Administration of SaaS Platforms (Microsoft 365 ecosystem: Exchange Online, Intune, Teams,
SharePoint)
• Virtualization (VMware, Hyper-V)
• Microsoft Exchange (On-Premises & Hybrid)
• Backup & Disaster Recovery (Veeam, DPM)
• Network Infrastructure (Cisco, HP, pfSense)
• IT Security & Firewall Management
• End-user & Remote Support

Certifications
• Microsoft Certified: Azure Administrator Associate (AZ-104)
• Microsoft 365 Certified: Endpoint Administrator Associate (MD-102)
• CCNA: Cisco Certified Network Associate
• MCITP: Enterprise Messaging Administrator
• MCITP: Enterprise Administrator

Professional Experience

Microsoft 365 / Azure Administrator
International Non-Profit Public Health Organization
Jan 2024 – Present | Kyiv, Ukraine

• Administer Microsoft 365 and Azure services in a hybrid enterprise environment
• Manage Microsoft Entra ID (Azure AD), Azure AD Connect, and hybrid identity services
• Administer Exchange Server 2019/SE and Exchange Online in a Hybrid configuration
• Lead mailbox migrations to Exchange Online and maintain reliable hybrid mail flow
• Implement Multi-Factor Authentication (MFA), Conditional Access, and Microsoft Entra
security policies

• Deploy and manage Azure virtual machines, virtual networks, storage, backup, and recovery
solutions
• Manage Microsoft Intune for Windows, macOS, iOS, and Android devices
• Implement Microsoft Defender security and endpoint protection solutions
• Monitor Microsoft 365 licensing, compliance, service health, and security posture

IT Infrastructure Manager
International Non-Profit Public Health Organization
Dec 2013 – Dec 2023 | Kyiv, Ukraine

• Led IT infrastructure operations and technical support for 250+ users across multiple office
locations
• Administered Windows Server infrastructure, including Active Directory, DNS, DHCP, Group
Policy, and File Services
• Managed VMware ESXi and Microsoft Hyper-V virtualization platforms
• Administered Exchange Server 2016/2019/SE on-premises messaging infrastructure
• Managed Remote Desktop Services (RDS) and enterprise storage systems
• Implemented backup and disaster recovery solutions using Microsoft DPM and Veeam Backup
& Replication
• Managed Cisco and pfSense/OpenVPN network infrastructure, firewalls, and VPN services
• Administered enterprise LAN/WAN, switching, wireless, and endpoint security solutions
• Planned infrastructure upgrades, managed IT vendors, licensing, hardware procurement, and
IT projects

IT Infrastructure Manager
Medicore Ltd.
Nov 2010 – Nov 2013 | Kyiv, Ukraine

• Managed Windows Server 2008 AD and Microsoft Exchange 2010 infrastructure.
• Implemented backup and disaster recovery using DPM 2012.
• Monitored systems health, applied updates, and resolved daily issues.
• Ensured IT security for LAN/WAN/VPN and supported internal users.

Education
Sumy State University
Bachelor’s Degree in Mechanical Engineering

Sumy Machine Building College
College Diploma in CNC Machinery Technology

Languages
• Ukrainian: Native
• English: Intermediate