Назар

Nazar Plechko
System Administrator & Computer Engineer

Kyiv, Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація»)

Professional Summary

Results-driven System Administrator and Computer Engineer with comprehensive expertise in enterprise infrastructure support, server administration,
virtualization, network management, and proactive system monitoring. Proven ability to ensure 99.9% uptime, streamline client-server architecture, and automate
technical operations across Windows and Linux environments. Combines core infrastructure skills with a strong foundation in Front-End development (JavaScript,
React) and DevOps workflows to build scalable, reliable, and optimized IT environments.

Technical Skills & Stack

Operating Systems & Servers Windows Server (2016/2019/2022), Active Directory (AD DS, GPO), Linux (Ubuntu,
Debian), Windows 10/11

Virtualization & Cloud Hyper-V, Virtual Machine Management, Infrastructure Provisioning, AWS Basics

Monitoring & Diagnostics Zabbix (Setup, Alerts & Custom Metrics), Log Analysis, Root Cause Analysis (RCA),
Hardware Diagnostics

Networking & Security TCP/IP, DNS, DHCP, VPN, Router & Switch Configuration, Network Security Protocols,
Access Control

Automation & DevOps PowerShell Scripting, Bash, Docker, Git, REST API Integration, CI/CD Pipeline
Fundamentals

Development & Web JavaScript (ES6+), React, HTML5/CSS3, Client-Server Architecture

Data & System Backup Disaster Recovery Planning (DRP), Backup & Recovery Management, System Migration

Professional Experience

System Administrator — Brabrabra April 2026 – Present

● Architect, configure, and maintain heterogeneous Windows and Linux server infrastructures to ensure maximum operational uptime and performance.

● Manage domain services via Active Directory and Group Policy Objects (GPO), enforcing centralized identity, security policies, and access controls.

● Deploy and maintain Zabbix monitoring infrastructure, creating automated alert workflows that reduced incident resolution time by 35%.

● Administer Hyper-V virtual environments, optimizing resource allocation, VM backups, and disaster recovery readiness.

● Deliver high-level technical support, automate software deployment routines, and continuously optimize network infrastructure stability.

Computer Engineer — TemaBit, Kyiv March 2024 – March 2026

● Maintained IT infrastructure stability and managed enterprise server hardware and virtual machine deployments.

● Administered Active Directory services, user accounts, network permissions, and hardware configuration baselines.

● Performed in-depth root cause analysis (RCA) on technical incidents, reducing repeat ticket occurrences and system bottlenecks.

● Executed hardware diagnostics, preventive maintenance, and strategic infrastructure upgrades to enhance performance.

Front-End Developer — Freelance July 2020 – Present

● Engineered intuitive web interfaces and applications using modern JavaScript and React.

● Integrated RESTful APIs and optimized client-server architecture, bridging software design with back-end infrastructure capabilities.

Education

Master's Degree – Computer Systems and Networks 2022 – 2023

National University of Life and Environmental Sciences of Ukraine

Bachelor's Degree – Computer Engineering 2018 – 2022

National University of Life and Environmental Sciences of Ukraine

Languages

●
Ukrainian: Native
● English: Intermediate (Professional Working Proficiency)