SYSTEMS ENGINEERING & INFRASTRUCTURE DOSSIER

Martin Kantardzhiev

Systems Administrator & Hosting Support Representative

LOCATION: Plovdiv, Bulgaria
TELEPHONE: +359 87 966 3393
ELECTRONIC MAIL: [email protected]
NETWORK PROFILE: linkedin.com/in/martinkantardzhiev

Systems administrator and hosting support specialist with hands-on experience in Windows/Linux environments, web hosting infrastructure, DNS/network troubleshooting, virtualization (Proxmox, VMware), NAS storage, and direct client technical support.

OPS-01 Web Hosting & DNS Resolution

OPS-02 Windows / Linux Hybrid SysAdmin

OPS-03 Proxmox VE & VMware Virtualization

OPS-04 NAS Storage & Disaster Recovery

Hosting Support Representative - Live Chat

hosting.com

10.2026 – Present ACTIVE

Execute real-time technical troubleshooting and incident triage for production web hosting environments via high-concurrency live chat channels.
Diagnose and configure DNS zones (A, AAAA, CNAME, MX, TXT/SPF, DKIM, DMARC records), propagation anomalies, and nameserver delegation.
Manage SSL/TLS certificate provisioning, chain validation, forced HTTPS redirects, and web server stack diagnostics.
Deliver rapid first-contact issue resolution while maintaining strict SLA response metrics and clear client documentation.

Systems Administrator

ARIKT EOOD · Plovdiv, Bulgaria

02.2026 – 10.2026

Provided comprehensive remote and onsite systems administration and tier-2/3 technical support across client infrastructures.
Performed bare-metal deployments, OS hardening, and lifecycle administration for Windows 10/11 workstations and Windows Server environments.
Administered Active Directory Domain Services (AD DS), organizational units, Group Policy Objects, and Microsoft 365 tenant user/license operations.
Provisioned and maintained hypervisor clusters and virtual machines utilizing Proxmox VE and VMware virtualization platforms.
Executed physical datacenter/server room tasks: server assembly, rack mounting, structured network cabling, and IP camera/NVR surveillance deployments.
Managed enterprise storage and backup continuity via Synology NAS appliances, automated Hyper Backup tasks, and Clonezilla bare-metal disk imaging.
Configured core network services including TCP/IP subnetting, DNS, DHCP address reservations, static IP assignments, and authenticated SMB shares.
Conducted component-level hardware diagnostics and fault isolation across RAM, SSD/HDD storage media, power supplies (PSU), and BIOS/UEFI firmware.
Delivered secure remote remediation and endpoint support utilizing RustDesk, AnyDesk, and Remote Desktop Protocol (RDP).

Sales Consultant

Technomarket Bulgaria

09.2024 – 10.2025

Advised customers on computing hardware, networking equipment, and peripheral specifications tailored to operational workloads.
Performed initial hardware/software technical troubleshooting, warranty diagnostics verification, and clear non-technical client communication.

DOM-01

OS

Windows 10/11
Windows Server
Linux

DOM-02

SYSADMIN & VIRTUALIZATION

Active Directory
Microsoft 365
Proxmox
VMware
Docker/LXC

DOM-03

STORAGE & BACKUP

Synology NAS
TrueNAS
Hyper Backup
Clonezilla

DOM-04

NETWORKING & WEB

TCP/IP
DNS
DHCP
SMB
Static IPs
Nginx
Cloudflare
Netgear
TP-Link

DOM-05

REMOTE SUPPORT

RustDesk
AnyDesk
RDP

DOM-06

HARDWARE & CCTV

Workstations
Servers
Server Racks
IP Cameras
NVR

LAB // SELF-HOSTED TESTBED ARCHITECTURE CONTINUOUS OPERATION

Self-hosted infrastructure running Proxmox VE, TrueNAS, Linux VMs/LXC containers, Cloudflare Tunnels, and reverse proxies for continuous testing of virtualization, backups, and network security.

HYPERVISOR & COMPUTE Proxmox VE · Linux VMs · Isolated LXC Containers

STORAGE & SNAPSHOTS TrueNAS · ZFS Pools · Automated Snapshot Replication

INGRESS & PERIMETER Cloudflare Tunnels · Hardened Nginx Reverse Proxies · TLS 1.3

EDU-01 2023 – Present

BSc in Informatics

Paisii Hilendarski University of Plovdiv

EDU-02 2017 – 2023

Economic Informatics

PG "Vasil Dimitrov", Madan

Martin Kantardzhiev

PROFILE

EXPERIENCE