Servers and VPS
Linux and Windows Server, physical servers and VPS. Deployment, security hardening, updates, migrations, backups, recovery and troubleshooting.
Yerevan • 15+ years in IT • remote
Infrastructure Engineer
Infrastructure Engineer
& IT Outsourcing
I design, deploy and maintain server and network infrastructure — from a single VPS or website to virtualization, corporate networks, VPN, monitoring and internal services. I handle one-off tasks, lead end-to-end infrastructure projects, and provide ongoing support.
Linux / Windows ServerProxmox / Hyper-VDockerMikroTikWireGuardMonitoring
15+years in IT infrastructure
10+companies supported over my career
200+workstations administered and supported
10+client sites across distributed environments
Services
From a single server to company-wide infrastructure
I can step in to solve a specific issue, perform a migration, deploy a new service, or take over ongoing infrastructure support.
Virtualization and Docker
Proxmox VE/PBS, Hyper-V, KVM, Docker Compose and Portainer. Virtual machines, storage, clusters, service containerization and GPU passthrough.
Networks, MikroTik and VPN
MikroTik, LAN/WAN, VLAN, routing, NAT, firewalls, WireGuard and OpenVPN. Site-to-site networks, secure remote access and L2/L3 troubleshooting.
Websites and web infrastructure
Launch and deployment of landing pages and small corporate websites, hosting and migrations. HestiaCP, Nginx, reverse proxy, DNS, SSL/TLS, domains and web infrastructure.
Monitoring and observability
Zabbix, Checkmk, Grafana, Prometheus, VictoriaMetrics, InfluxDB and Telegraf. Metrics, alerts, and availability monitoring for services and equipment.
IT outsourcing
Ongoing administration and business IT support: servers, networks, workstations, updates, backups, documentation, incident response and infrastructure development.
Also experienced with:
How I work
From urgent incidents to ongoing support
I start by understanding how the system works today and where the real risks are. Then we agree on the changes, implement them with a rollback path, and verify the result.
01 / DIAGNOSE
Assess the task
I collect the facts: topology, symptoms, dependencies, constraints and access. This establishes what needs to change and in what order.
02 / IMPLEMENT
Implementation
Configuration, migration or recovery. For critical changes, I plan backups and a clear rollback path in advance.
03 / VERIFY
Verification and support
I verify the result, document the important settings and, when needed, stay on for ongoing maintenance and further development.
About
Oleg Aleksandrovich Avdeenko
Senior Infrastructure Engineer / Senior System Administrator with 15+ years of experience. Servers, virtualization, networking, self-hosted services and end-to-end infrastructure projects.
Infrastructure that is practical to operate and evolve
Over the past 15+ years, I have progressed from building IT infrastructure from scratch to managing distributed systems and infrastructure projects for businesses. During that time, I provided regular support for 10+ companies, administered and supported 200+ workstations, and worked across 10+ client sites.
I value clear architecture, backups with regular restore testing, controlled changes, current documentation, and access-management processes that do not depend on one administrator’s memory. A separate area of expertise is NVIDIA GPU infrastructure and Thinkbox Deadline render farms.
Contact
Need help configuring, migrating, or maintaining your infrastructure?
Send a short message with what you have now, what is not working, or what outcome you need. That is enough for an initial assessment.