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System administrator
Considering positions:
System administrator, Hosting Technical Support, Hosting Engineer, Системный администратор, Специалист технической поддержки
City of residence:
Kharkiv
Ready to work:
Remote
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MAKSYM ZAKHAROV
System Administrator | Hosting Technical Support
Schmiechen, Bavaria, Germany TARGET ROLE
[open contact info ](look above in the "contact info" section) | [open contact info ](look above in the "contact info" section) System Administrator
Linux/Hosting Support
[open contact info ](look above in the "contact info" section)
SUMMARY
System Administrator with production experience in Linux infrastructure, Proxmox virtualization, ISPmanager 6, and
MikroTik networking. Since March 2024, operating a self-managed hosting environment for commercial clients with
paid ISPmanager licensing, automated operational workflows, and power redundancy (UPS + battery for host and
router). Manage provisioning, monitoring, incident response, root cause analysis, and service continuity. Open to
joining a structured team to improve reliability and shared operations through clear processes and collaboration.
TECHNICAL SKILLS
Linux & Hosting Operations Linux administration, deployment, maintenance, troubleshooting, basic hardening
Virtualization Proxmox VE (VM/LXC provisioning and operations)
Control Panel ISPmanager 6 (service provisioning, monitoring, customer operations)
Web Stack Nginx, Apache, PHP, MySQL
Networking MikroTik, TCP/IP, DNS, SSL/TLS (basics)
Automation Bash scripting, Python scripting, webhooks, SQL workflows
Support & Reliability Backups, uptime monitoring, incident management, service restoration, escalation handling, ticket-ba
EXPERIENCE
SELF-OPERATED HOSTING ENVIRONMENT (COMMERCIAL CLIENTS)
System Operations / Hosting Support | March 2024 - Present
• Deliver paid hosting services for active commercial clients in a production environment.
• Operate Linux-based services using Proxmox VE and licensed ISPmanager 6.
• Perform account and service provisioning, incident handling, and customer support workflows.
• Maintain monitoring routines, backup procedures, and recovery readiness for service continuity.
• Implemented backup power architecture (UPS + battery) for both host and router to reduce outage risk.
• Managed incident lifecycle end-to-end: detection, user communication, mitigation, recovery, and post-incident
follow-up.
• Published operational status updates during outages and maintenance windows, including restoration confirmations.
• Handled third-party dependency incidents and escalated to provider support when required (e.g., DNS/CDN-side
issues).
• Troubleshot UPS failover behavior and improved backup power workflow to reduce unplanned downtime risk.
• Executed planned maintenance windows with controlled service interruption and staged recovery procedures.
PLATFORM OPERATIONS (HIGH-LOAD ONLINE PROJECT)
Platform Operations / Project Management | 2021 - 2025
• Built and scaled a high-load online platform from zero to stable multi-server operations.
• Operated infrastructure of 12 servers with peaks of ~150 concurrent users and ~2000 unique users per 24 hours.
• Maintained stable service levels of ~100 concurrent users during transition periods.
• Coordinated platform operations, incident response, team workflows, and continuity planning.
• Built a sustainable monetization model with passive revenue up to ~$500/month (through 2023).
PROJECTS
Infrastructure & Network Lab
• Built and maintained UPS-protected infrastructure for resilience testing and continuity scenarios.
CV prepared in clean ATS-friendly format Page 1
MAKSYM ZAKHAROV
System Administrator | Hosting Technical Support
Schmiechen, Bavaria, Germany TARGET ROLE
[open contact info ](look above in the "contact info" section) | [open contact info ](look above in the "contact info" section) System Administrator
Linux/Hosting Support
[open contact info ](look above in the "contact info" section)
• Configured MikroTik network environment for stable routing and reliable connectivity.
• Managed Proxmox virtual environments for multi-service hosting scenarios.
Automation & Integrations
• Developed a Python Discord bot with 40+ modules (Discord API integrations).
• Implemented Monobank API webhook flow for automated payment-related operations.
• Built SQL-based balance update logic and backend data pipelines.
EDUCATION
Bachelor's Degree in Law Enforcement in Civil Security
National University of Internal Affairs, Kharkiv | 2021 - 2024
LANGUAGES
Ukrainian - Native | Russian - Native | English - Intermediate (B1), Technical (B2) | German - A1 (currently learning)
CV prepared in clean ATS-friendly format Page 2
System Administrator | Hosting Technical Support
Schmiechen, Bavaria, Germany TARGET ROLE
[
Linux/Hosting Support
[
SUMMARY
System Administrator with production experience in Linux infrastructure, Proxmox virtualization, ISPmanager 6, and
MikroTik networking. Since March 2024, operating a self-managed hosting environment for commercial clients with
paid ISPmanager licensing, automated operational workflows, and power redundancy (UPS + battery for host and
router). Manage provisioning, monitoring, incident response, root cause analysis, and service continuity. Open to
joining a structured team to improve reliability and shared operations through clear processes and collaboration.
TECHNICAL SKILLS
Linux & Hosting Operations Linux administration, deployment, maintenance, troubleshooting, basic hardening
Virtualization Proxmox VE (VM/LXC provisioning and operations)
Control Panel ISPmanager 6 (service provisioning, monitoring, customer operations)
Web Stack Nginx, Apache, PHP, MySQL
Networking MikroTik, TCP/IP, DNS, SSL/TLS (basics)
Automation Bash scripting, Python scripting, webhooks, SQL workflows
Support & Reliability Backups, uptime monitoring, incident management, service restoration, escalation handling, ticket-ba
EXPERIENCE
SELF-OPERATED HOSTING ENVIRONMENT (COMMERCIAL CLIENTS)
System Operations / Hosting Support | March 2024 - Present
• Deliver paid hosting services for active commercial clients in a production environment.
• Operate Linux-based services using Proxmox VE and licensed ISPmanager 6.
• Perform account and service provisioning, incident handling, and customer support workflows.
• Maintain monitoring routines, backup procedures, and recovery readiness for service continuity.
• Implemented backup power architecture (UPS + battery) for both host and router to reduce outage risk.
• Managed incident lifecycle end-to-end: detection, user communication, mitigation, recovery, and post-incident
follow-up.
• Published operational status updates during outages and maintenance windows, including restoration confirmations.
• Handled third-party dependency incidents and escalated to provider support when required (e.g., DNS/CDN-side
issues).
• Troubleshot UPS failover behavior and improved backup power workflow to reduce unplanned downtime risk.
• Executed planned maintenance windows with controlled service interruption and staged recovery procedures.
PLATFORM OPERATIONS (HIGH-LOAD ONLINE PROJECT)
Platform Operations / Project Management | 2021 - 2025
• Built and scaled a high-load online platform from zero to stable multi-server operations.
• Operated infrastructure of 12 servers with peaks of ~150 concurrent users and ~2000 unique users per 24 hours.
• Maintained stable service levels of ~100 concurrent users during transition periods.
• Coordinated platform operations, incident response, team workflows, and continuity planning.
• Built a sustainable monetization model with passive revenue up to ~$500/month (through 2023).
PROJECTS
Infrastructure & Network Lab
• Built and maintained UPS-protected infrastructure for resilience testing and continuity scenarios.
CV prepared in clean ATS-friendly format Page 1
MAKSYM ZAKHAROV
System Administrator | Hosting Technical Support
Schmiechen, Bavaria, Germany TARGET ROLE
[
Linux/Hosting Support
[
• Configured MikroTik network environment for stable routing and reliable connectivity.
• Managed Proxmox virtual environments for multi-service hosting scenarios.
Automation & Integrations
• Developed a Python Discord bot with 40+ modules (Discord API integrations).
• Implemented Monobank API webhook flow for automated payment-related operations.
• Built SQL-based balance update logic and backend data pipelines.
EDUCATION
Bachelor's Degree in Law Enforcement in Civil Security
National University of Internal Affairs, Kharkiv | 2021 - 2024
LANGUAGES
Ukrainian - Native | Russian - Native | English - Intermediate (B1), Technical (B2) | German - A1 (currently learning)
CV prepared in clean ATS-friendly format Page 2
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The candidate's resume is posted at https://www.work.ua/resumes/17225251/