Артур

ARTUR KOZHEVNIKOV
SYSTEMS ADMINISTRATOR
Kyiv, Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | Telegram: @sipiherdex

PROFILE

Systems Administrator with extensive hands-on experience supporting Linux and Windows Server environments,
VMware virtualization, Active Directory, and enterprise infrastructure. Experienced in server administration,
infrastructure migrations, backup solutions, network troubleshooting, and maintaining business-critical services. Have
participated in and independently implemented infrastructure modernization projects, including server migrations and
deployment of internal services. Use scripting for administrative tasks and continue developing infrastructure automation
and DevOps skills.

TECHNICAL SKILLS

Systems Administration: Linux (Ubuntu, Debian), Windows Server, Active Directory, Group Policy, DNS, DHCP
Virtualization: VMware ESXi, vCenter Server, vSphere, Proxmox VE
Networking: TCP/IP, VLAN, VPN, pfSense, Cisco, Dell OS10, network troubleshooting
Infrastructure Services: Nginx, Apache, MariaDB, Postfix, Dovecot, GitLab, Cloudflare
Backup & Recovery: Veeam Backup & Replication, Proxmox Backup Server, backup monitoring and recovery
Monitoring & Security: Zabbix, Prometheus, Grafana, ESET, SSL/TLS, system hardening
Scripting & Tools: Bash, PowerShell, Python, Git
Documentation: Infrastructure documentation, network diagrams, technical procedures

PROFESSIONAL EXPERIENCE

Systems Administrator Apr 2026 - Present
Supreme Court of Ukraine
• Maintain VMware vSphere and vCenter environments, including virtual machine administration, troubleshooting, and routine
maintenance.
• Administer Active Directory, user access, and Group Policy settings across the organization.
• Maintain and improve Veeam Backup infrastructure, including backup job configuration, monitoring, and recovery procedures.
• Maintain internal Linux and Windows services and troubleshoot DNS, DHCP, Nginx, and network-related issues.
• Use Bash, PowerShell, and Python scripts to simplify routine administrative tasks; update infrastructure documentation and
server security settings.

Systems Administrator Mar 2025 - Apr 2026
Ministry of Culture of Ukraine
• Migrated a 10 TB document management system from Proxmox to VMware with no data loss and minimal service interruption.
• Migrated a production Postfix/Dovecot mail platform, transferring approximately 820 GB of mailbox data for hundreds of users.
• Migrated a public-facing WordPress platform to Linux infrastructure, configuring Nginx, PHP-FPM, MariaDB, Cloudflare, DNS,
and SSL/TLS.
• Administered Linux and Windows Server systems across VMware vSphere and Proxmox VE environments.
• Maintained Nginx and Cloudflare services and documented network topology, migrations, and backup procedures.

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ARTUR KOZHEVNIKOV
SYSTEMS ADMINISTRATOR
Kyiv, Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | Telegram: @sipiherdex

PROFESSIONAL EXPERIENCE /
CONTINUED

QA Task Lead Engineer Jan 2024 - Mar 2025
Fractured Byte
• Coordinated a QA team within a software development group, assigning tasks and tracking progress across releases.
• Worked with developers on bug reproduction, investigation, and triage, keeping defect priorities clear.
• Supported communication between development and QA teams and maintained testing documentation.
• Coordinated functional, smoke, and regression testing activities throughout release cycles.

Web QA Engineer Mar 2023 - Jan 2024

• Performed manual and functional testing of a data-intensive web analytics product handling large volumes of information.
• Tested data tables, filtering, sorting, search features, and data presentation for consistency and usability.
• Investigated data discrepancies, documented defects, and verified fixes with developers.
• Participated in smoke and regression testing before releases.

Systems Administrator Aug 2019 - Mar 2023
Supreme Court of Ukraine
• Administered Windows Server infrastructure, Active Directory, user accounts, and access permissions.
• Maintained VMware virtual infrastructure and supported internal court services.
• Managed Microsoft 365 services and assisted with day-to-day network administration.
• Implemented a Veeam Backup solution and documented backup and recovery procedures.
• Deployed ESET endpoint protection and helped modernize legacy infrastructure services.

SELECTED PROJECTS

• 10 TB Infrastructure Migration: Migrated a government document management system from Proxmox to VMware without data
loss.
• Mail Platform Migration: Transferred approximately 820 GB of mailbox data to a new Postfix/Dovecot environment.
• Government Website Migration: Moved a public-facing WordPress site to a new Linux infrastructure and reconfigured related
services.

EDUCATION

National Aviation University
Master's Degree - Systems Analysis | Bachelor's Degree - Information Security Management

CERTIFICATIONS & TRAINING

Linux Essentials (LPI) | ISTQB Foundation Level | QA Automation, Hillel IT School | IT STEP Academy

LANGUAGES

Ukrainian - Native | English - Upper-Intermediate

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