Available for NOC / Network Engineer roles

System & Network Administrator

Roman
Kovtun

CCNA · Security+ · Azure AZ-900
Based in Wezembeek-Oppem, Belgium
Building secure, scalable infrastructure — in production and in the homelab.

Get in touch View experience

Credentials

Certifications

Cisco

CCNA — Cisco Certified Network Associate

CompTIA

Security+ — Cybersecurity Fundamentals

Microsoft

Azure AZ-900 — Cloud Fundamentals

Currently preparing: AZ-104 Microsoft Azure Administrator

Technical expertise

Skills

Networking

Cisco Routing & Switching VLANs OSPF STP TCP/IP VPN DNS / DHCP WireGuard OpenVPN OPNsense

Systems

Windows Server 2019/2022 Active Directory Group Policy Linux (Debian/Ubuntu) Microsoft 365 Admin

Cloud & Virtualisation

Microsoft Azure Proxmox VMware Docker Azure DNS App Service

Security & Monitoring

pfSense Wazuh SIEM Security+ Principles System Hardening L1/L2 Troubleshooting

Career

Experience

Jan 2025 — May 2026

Intec Brussel

System & Network Administrator

Configured and maintained Cisco-based lab environments — VLANs, OSPF, wireless connectivity
Managed Active Directory (users/groups/GPOs) and Microsoft 365 Admin Center for a high-volume training environment
Provided Tier 1 & 2 support across Windows and Linux (Debian/Ubuntu) systems
Deployed and monitored VMs using Proxmox and VMware to optimise training lab resources

2018 — 2022

Momot-Concrete & Iskrasoft

System & Network Administrator / IT Support L1/L2

Supported and administered IT infrastructure for 50+ users
Progressed from Helpdesk (1.5 yrs) to System & Network Administrator (2.5 yrs)
Managed Windows Server, Active Directory, DNS/DHCP
Supported network infrastructure — VLANs, VPNs, switching

2002 — 2018

Construction Sector

Owner & Manager

Managed projects, budgets, and teams of 20–35 staff
Strong foundation in operations, problem-solving, and leadership

Homelab & side projects

Projects

🏠

Self-managed homelab

Full enterprise-grade homelab running OPNsense firewall, Proxmox hypervisor, Wazuh SIEM, WireGuard & OpenVPN for remote access, Pi-hole DNS, and OpenMediaVault NAS.

OPNsense Proxmox Wazuh WireGuard Docker

☁️

Azure portfolio site

This site — hosted on Azure App Service with custom domain via Azure DNS, managed SSL certificate, and GitHub-based deployment. Built as AZ-104 exam preparation.

Azure App Service Azure DNS SSL/TLS AZ-104

🎬

Tech Skills Central

YouTube channel publishing IT tutorials on homelab, OPNsense, Proxmox, and networking — aimed at sysadmins learning hands-on infrastructure skills.

YouTube Content creation Homelab tutorials

🔐

Azure AD lab

Azure Active Directory tenant under techskills.live — bulk user provisioning, conditional access, and identity management practice environment.

Azure AD Entra ID Identity M365

Get in touch

Let's connect

Open to NOC Engineer and network/sysadmin roles in Belgium. Feel free to reach out directly.

✉ romankovtun4@outlook.com ✆ 0477 04 92 78 in linkedin.com/in/roman-kovtun4 ▶ Tech Skills Central — YouTube

Languages

Education

2024 – 2025

ICT Infrastructure Administrator

NTEC Brussel

2011 – 2015

Master in Economics of Enterprise