IT Support Specialist | System Administrator
Mykhailo Kozlov
System Administrator and IT Support Specialist with 2+ years of hands-on experience supporting 200+ users and managing office IT infrastructure. Skilled in Windows and Linux administration, endpoint support, network and print services, infrastructure monitoring, remote troubleshooting, and Bash/Python automation. Led a 6-person L1 support team, improved Helpdesk response time by 40%, and reduced costs by +-30% and reducing manual work. Experienced in device provisioning, access control systems, data encryption, hardware recovery, and server deployment with automated backups.
Work experience
- NDA Company — System Administrator (June 2024 - Present)
• Led a 6-person L1 IT support team and improved helpdesk response time by 40% (Reduced the first reaction time from 5 minutes to 3min)
• Supported 200+ users with hardware and software troubleshooting, equipment lifecycle management, issuance, replacement, and incident resolution.
• Preparing premises for work (server rack installation, equipment connection, link wiring, cable management, and L1 support)
• Configured and maintained Zabbix monitoring and handled helpdesk tickets from initial triage through resolution.
• Provided remote support using RDP, TeamViewer, AnyDesk, RustDesk
• Basic Linux administration (LinuxMint): SSH, system services, package management, and Bash scripting.
• Automated Android device setup via ADB, reduced setup time
• Configured access control system (ACS)
• Automated VNC Mac setup, script
• Endpoint encryption using VeraCrypt and FileVault - Dozor — System Administrator (June 2023 - November 2023)
• Supported 40+ workstations through remote and onsite troubleshooting.
• Automated document processing for 8,000+ phone numbers, improving operational efficiency, reduced costs by +-30% and reducing manual work (reducing the turnaround time from 2–3 business days to 15 minutes).
• Installed and maintained microcontrollers, LED panels, GPS trackers, and fuel-monitoring sensors.
• Networking: MikroTik, TCP/IP, basic routing, firewall configuration, network troubleshooting.
• Coordinated technical services, equipment requirements, and operational issue resolution.
Projects
- Pygame[A small Python game for myself]
- Group-automation-script[Phone number grouping, costs by 30%]
- Extracting-costs-from-both-files[Extracting costs from files, costs by 30%]
- Internet-spending-numbers[Cost comparison and annotation]
