Sergey Yashin — kxkwork

Linux & Unix · System & Network Administration

Kyiv, Ukraine

Hi! I’m a developer and system admin with over 5 years of experience. I help projects stay secure, fast, and reliable. Here’s what I can help you with: — Setting up and securing servers (Linux, Ubuntu, Nginx, Firewall) — Building and configuring VPN…

Aleksandrs Kolomicevs — alekskolomicevs

Cybersecurity & Data Protection · Linux & Unix

Riga, Latvia

Danylo Samraz — Daniel_sam

Linux & Unix · System & Network Administration

Lvov, Ukraine

Serhii Kravchenko — skravchenko-it

Linux & Unix · System & Network Administration

Kyiv, Ukraine

…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…