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Serhii

System & Network Administration · Content Management Systems

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220

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Content Manager

Website Maintenance · System & Network Administration

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128

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Serhii Kravchenko

Linux & Unix · System & Network Administration

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199

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Senior Infrastructure Engineer / System Administrator (10+ Years of Experience)I design, deploy, and maintain server environments and network infrastructure. I take full ownership of the technical stack: from basic VPS configuration to building secure VPN tunnels and automating daily operations. I work autonomously without the need for micromanagement.Core Competencies:• OS & Servers: Linux (Debian, Ubuntu, CentOS), Windows Server. • Virtualization: Proxmox VE, KVM, Docker. • Networking & Security: Routing (BGP, OSPF), VPN (WireGuard, OpenVPN, IPsec), MikroTik, Firewalls (iptables), DDoS…