Networks, servers, DevOps — infrastructure that just works

Infrastructure engineer from Ukraine. I design and configure networks, servers and clusters, and automate the routine.

Denis · Network & Infrastructure Engineer · DevOps

9+ years in infrastructure Ukraine

Networks · Servers · DevOps I design, build, configure and maintain. [Scroll to explore]

What I do

  1. 01

    Networks & network hardware

    Cisco · Arista · Juniper · Extreme · Fortinet · MikroTik · Ubiquiti

    Router and switch configuration, building and rebuilding networks for offices and sites.

  2. 02

    Servers, storage & clusters

    Dell · HPE · Supermicro · Fujitsu

    Selecting, building and configuring servers and storage systems, complex cluster systems.

  3. 03

    DevOps & containers

    Docker · Kubernetes · Nginx · F5 BIG-IP

    Containerization, orchestration, load balancing and web server configuration.

  4. 04

    High-load LANs

    Design · high-speed networks

    Designing local networks for heavy load and high data rates.

  5. 05

    Tooling & development

    Python · Rust · TypeScript · Shell

    In-house utilities and automation for infrastructure tasks.

Skills

29 skills, one topology

Krokosha · core
    • Network hardware

      • Cisco Catalyst · Nexus · ISR/ASR
      • Arista
      • Juniper
      • Extreme Networks
      • Fortinet
      • MikroTik RouterOS
      • Ubiquiti
    • High-load LANs

      • LAN design
      • High-speed LANs
    • Servers & hardware

      • Build & diagnostics
      • RAID
      • Dell Dell EMC
      • HPE
      • Supermicro
      • Fujitsu
    • Clusters & virtualization

      • Cluster systems complex cluster systems
    • Data storage

      • Storage servers & arrays
    • Containers & orchestration

      • Docker
      • Docker Compose
      • Kubernetes
    • Web & load balancing

      • Nginx
      • F5 BIG-IP
    • Linux

      • Linux
    • Windows

      • Windows / Windows Server
    • macOS

      • macOS
    • Languages

      • Python
      • Rust
      • TypeScript
      • Shell

In numbers

years of experience
9
public projects
26

Need a network, server or cluster that just works?

Tell me about the task — I'll reply and propose a solution.

Discuss a project

github · 26

Projects

Most of my projects are private, so repository links aren't available for all of them.

  • OpenCRM

    🗂️ Self-hosted CRM for small businesses: job boards, clients, stock and barcodes, orders, printed forms, finance, client showcases. One-command install, auto-updates, backups.

    Python

  • Anisync

    🍿 Cross-platform desktop anime browser & player — live search, embedded mpv playback, download queue, local library & watch history, plugin-based sources. Python + PySide6 (Qt 6).

    Python

  • cinema-skills

    🎬 Claude Agent Skills for cinematic AI video production: screenplay → directed shots → color grade → voice-over → mini-series, all in one consistent style. Growing library, EN/RU.

    Python

  • iphone-webcam

    📱 ClearCam — turn an iPhone into a high-quality webcam: raw or visually lossless video over Wi-Fi or USB to a Rust + Tauri desktop app. Work in progress.

    Rust

  • opinionwinners

    🎯 Opinion Winners — prediction-market event finder with a simple risk/reward calculator. Vanilla JS + Vite SPA with an nginx Docker image, Kubernetes manifests and VPS deploy scripts.

    Shell

  • Scripts

    🧰 One-command Bash installers for crypto testnet nodes on Ubuntu — Docker, Elixir validator, Allora worker, Unichain node and the Aligned ZK quiz.

    Shell

  • The-Blackwall

    🛡️ Self-hosted Linux gateway control panel: live system & traffic dashboard, multi-WAN round-robin and failover load balancing with health checks, one-click updates. FastAPI + React.

    Python

  • toolkit

    🧰 Sysadmin scripts behind one TUI launcher that checks your machine first: Docker & Pingvin Share installers, server hardening, verified backups, netwatch, WAF load tester, Proxmox wipe.

    Python

  • skills

    🧠 My growing collection of Claude Agent Skills, grouped into plugins — one Claude Code plugin marketplace. First plugin: 🎬 cinema (script → directed, graded, voiced mini-series in one style). EN/RU.

    HTML

  • krokosha-site

    🐊 Source of krokosha.com, the personal site of a network & infrastructure engineer: Astro static site, Go API with admin, lead CRM and Telegram bot, one-command VPS installer.

    Go

  • abstract_withdraw

    🌉 Batch withdrawal from Abstract to Base via relay.link: bridges native ETH from EOAs or Abstract Global Wallets and forwards it to exchange addresses. Resumable, proxy-aware, XLSX-driven.

    Python

  • telegram_export

    🗄️ TgVault: local Telegram channel & chat exporter. Full history and all media over MTProto, resumable incremental downloads, 8 folder layouts, offline HTML viewer.

    Python

  • Logo

    🎨 Tiny Bash script that prints the yellow “Krokosha Command” ASCII-art banner — the header shown by DenisHumen's node install scripts.

    Shell

  • Snapflow

    —

All repositories +6

04

Contact

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How to reach you

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Achievements

  1. ↑↑↓↓←→←→BA Not found yet
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  3. Crocodile spotted Not found yet
  4. Cat whisperer Not found yet
  5. Turn it off and on again Not found yet
  6. Almost a colleague Not found yet
  7. The real Krokosha Not found yet
  8. Packet recovered Not found yet
  9. root@krokosha Not found yet