Arsen

Arsenii Makarenko
System Administrator
[open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section) Lviv, Ukraine
[open contact info](look above in the "contact info" section)

SUMMARY
Results-driven System Administrator specializing in server infrastructure, network troubleshooting, and
process automation. Proven ability to optimize system performance, manage user access, and maintain
secure IT environments. Skilled in scripting and bridging technical support with operational needs to ensure
99.9% uptime and drive overall efficiency.

EXPERIENCE
Junior System Administrator 08/2025 - 02/2026
TechServe Solutions, Kyiv (Remote)
Managed and monitored Windows and Linux (Ubuntu/CentOS) server environments, ensuring high availability
and resolving network connectivity issues.
Automated routine IT operations and patch management using Bash and PowerShell scripts, reducing manual
maintenance time by 30%.
Administered user accounts, permissions, and security policies via Active Directory and Azure AD,
streamlining employee onboarding and offboarding processes.
Configured and maintained local networks (LAN/WAN, VPNs, Routers) and resolved Tier 2 helpdesk tickets,
achieving a 90% first-contact resolution rate.
Implemented automated backup and disaster recovery procedures, securing critical company data and
minimizing potential downtime.

EDUCATION
National University of Kyiv-Mohyla Academy 2024 - 2028
Bachelor Degree

SKILLS
Operating Systems: Linux Windows Server (2019/2022) Windows 10/11 Networking: TCP/IP

DNS DHCP VPN Firewalls Routing & Switching

Infrastructure & Cloud: Active Directory Group Policy (GPO) Microsoft 365 Azure AD

Hyper-V VMware Automation & Tools: Bash PowerShell Docker

Soft Skills: Problem Solving Technical Support Incident Management Team Collaboration

LANGUAGES
Ukrainian: Native English: C1 - Advanced
Russian: Native Spanish: A1 - Beginner