Open to new experience & opportunities

Dmytro Petrenko

IT Infrastructure Engineer & System Administrator

📍 Israel
🏢 Hatacot Group LTD / Ravitz CIS
🎂 Born July 12, 2005
🌍 Originally from Odessa, UA
dmytro@infra ~ %
$ whoami
→ IT Infrastructure Engineer | Sysadmin | Vibe Coder

$ neofetch --skills
OS: Linux / Windows Server
Virt: Proxmox / Unraid / VMware ESXi
Backup: Veeam / NAS / QNAP
Net: VPN / DNS / VoIP / GoIP
Dev: Web / Telegram Bots / Perl / Vibe Coding
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01

About Me

I'm a system administrator and IT infrastructure engineer with hands-on experience since 2019. Born in Odessa, Ukraine and now based in Israel, I specialize in building reliable, scalable IT environments — from physical servers and virtualization platforms to VPN networks and helpdesk integrations.

I thrive on solving complex problems end-to-end: setting up monitoring, automating backups, deploying ticketing systems, configuring telephony, and building custom web tools. I also enjoy vibe coding — creating projects by feel, from Telegram bots to full web applications.

Outside of work, I'm passionate about reading, traveling, and active living. I've visited over 30 countries and love exploring new systems, services, and technologies in my free time.
6+
Years in IT
30+
Countries Visited
4
Languages
∞
Curiosity
🇺🇦
Ukrainian
Native
🇷🇺
Russian
Native
🇮🇱
Hebrew
Fluent
🇬🇧
English
Intermediate

// Hobbies & Interests

📚
Reading
Lifelong learner
✈️
Traveling
30+ countries
🏃
Active Lifestyle
Sports & outdoors
⚙️
Tech Exploration
New systems & services
02

Experience

2025 — PRESENT
IT Department Manager
Hatacot Group LTD · Israel
Managing the IT department, overseeing infrastructure operations, coordinating technical projects, and ensuring reliable system performance across the organization.
IT ManagementInfrastructureTeam LeadOperations
2023 — PRESENT
System Administrator
Ravitz Computer Information Systems · Israel
Managing IT infrastructure for organizations across Israel. Deploying and maintaining virtualization platforms (Proxmox, Unraid, VMware), configuring Veeam Backup solutions, NAS systems, and VPN networks. Building custom web applications for ticket intake, integrating Znuny helpdesk with multilingual support. Administering Windows Server, Microsoft Exchange, telephony systems, DNS, and physical servers.
ProxmoxVeeamWindows ServerZnunyExchangeVPNDNSVoIP
2022
Call Center IT Administrator
Elections Project · Odessa, Ukraine
Administered the IT infrastructure for a call center operation during local elections. Managed GoIP gateways, VoIP systems, and ensured stable communication channels for the entire project duration.
GoIPVoIPTelephonyNetworking
2019 — 2022
System Administrator
DOM Store · Odessa, Ukraine
First professional IT role. Maintained in-store IT infrastructure, managed point-of-sale systems, network equipment, and provided technical support. Built foundational skills in Windows administration and hardware troubleshooting.
WindowsNetworkingHardwareSupport
03

Skills & Technologies

🎧
Help Desk Support
End-user technical support, incident management, troubleshooting, remote assistance, SLA compliance.
🤝
Teamwork & Coordination
Team collaboration, task delegation, cross-department coordination, mentoring colleagues, project planning.
🖥️
Virtualization
Proxmox VE, Unraid, VMware ESXi. ZFS RAIDZ2, LVM-Thin, VirtIO optimization.
🪟
Windows Server
Active Directory, Group Policy, Windows Server 2016/2019/2022, SMBIOS config, licensing.
🐧
Linux Administration
Ubuntu, Debian. Service management, shell scripting, VPN deployment, server hardening.
💾
Backup & Storage
Veeam Backup & Replication, QNAP NAS, iSCSI, RAID configurations, disaster recovery.
🌐
Networking & VPN
WireGuard, OpenVPN, DNS management, VPS configuration, firewall rules, VLANs.
📞
Telephony & VoIP
GoIP gateways, VoIP systems, Microsoft Exchange, call center infrastructure.
🎫
Helpdesk & ITSM
Znuny/OTRS ticketing, multilingual support, workflow automation.
📊
Monitoring
Zabbix, infrastructure monitoring, alerting, performance analysis.
🚀
Web Development
HTML/CSS/JS, Perl web apps, Telegram bots, mobile-responsive ticketing portals, DNS setup.
🤖
Vibe Coding & AI
AI-assisted development, rapid prototyping, Telegram bot creation, creative automation.
🔧
Hardware & Servers
Physical server setup, RAID controllers, HP/Dell servers, BIOS configuration, troubleshooting.
🛡️
Security & Access
Firewall configuration, VPN security, camera systems, network segmentation, access control.
04

Notable Projects

Infrastructure
AI-Powered Ticket System
Built an intelligent ticket processing system for Znuny with multilingual support (Hebrew, Russian, English) for seamless client communication.
ZnunyPerlAI/NLPMultilingual
Web App
Ticket Intake Portals
Developed mobile-responsive web applications (Finansim, Astral) for organizations to submit support requests with multilingual interfaces and custom workflows.
HTML/CSSJavaScriptPerlResponsive
Migration
Server P2V Migration & Recovery
Performed physical-to-virtual server migrations, including transferring Windows Server systems to Unraid and Proxmox environments. Experienced in server restoration and recovery from Veeam backups.
UnraidProxmoxWindows ServerVeeam
Networking
Multi-Site VPN Network
Designed and deployed VPN infrastructure using WireGuard and OpenVPN for cross-platform connectivity across multiple locations via VPS servers.
WireGuardOpenVPNVPSLinux
Automation
Telegram Bots
Created various Telegram bots for automation tasks, notifications, and service management, integrating with existing infrastructure.
Telegram APIPythonAutomation
Surveillance
Multi-Location Camera System
Configured video surveillance systems across multiple locations in Israel with proper network security, remote access, and centralized management.
IP CamerasNVRNetworkingSecurity
05

Get In Touch

Interested in working together or have a project in mind? I'm open to new experience and opportunities — let's connect.

✉️ Email Me 💬 Telegram 🔗 LinkedIn