# Hi there, I'm Andrii! 👋

### CTO & Senior Lead Infrastructure Engineer 🛠️
With over **13 years of experience** in the ISP industry, I focus on building resilient network architectures, automating infrastructure, and leading technical teams toward 99.9% uptime excellence.

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### 🚀 Professional Focus
- **Infrastructure:** Expert in BGP, OSPF, and high-availability Linux/FreeBSD systems.
- **Automation:** Passionate about reducing "firefighting" through Bash, Python, and Infrastructure as Code.
- **Leadership:** Strategic planning, CTO governance, and mentoring engineering teams.

### 🎮 Beyond the Server Room
- **Game Dev:** Currently exploring software architecture and stylized 3D graphics using **Unreal Engine 4/5** and **C++**.
- **Craftsmanship:** Enjoy working with wood (electric guitars) and blacksmithing.

### 🛠️ Tech Stack & Tools
- **OS:** Linux (Debian, LMDE), FreeBSD, Windows Server.
- **DevOps:** Docker, Proxmox (PVE/PBS), Git/GitLab, Ansible.
- **Languages:** Bash (Expert), Python & C++ (Deepening), SQL (PostgreSQL).

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### 🛠 Key Projects & Toolsets
* **[S4K Admin Toolbox](https://gitea.syr4ok.top/syr4ok/s4k-admin-toolbox)** — My primary collection of battle-tested automation scripts (Networking, Backup, System Management).
* **[Modbus Relay Controller](https://gitea.syr4ok.top/syr4ok/s4k-modbus-relay-controller)** — Dedicated Python tool for industrial automation and hardware control.
* **[PVE Rsync Backup Pro (Bash)](https://gitea.syr4ok.top/syr4ok/s4k-pve-rsync-backup)** — High-precision backup automation for Proxmox VE. Uses real-time log parsing to identify snapshots, handles rsync transfers with atomic file lists, and includes safety-first remote cleanup logi

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### 🌍 Languages
- **Ukrainian & Russian:** Native/C2.
- **English:** B1/B2 (Professional Working Proficiency).
- **Polish:** A1 (Learning).
- **Spanish:** Future goal!.

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### 📫 Let's Connect
- **LinkedIn:** [[andsyrovatko](https://www.linkedin.com/in/andsyrovatko/)]
- **Location:** Based in Dnipro, Ukraine 🇺🇦

*"I value economic feasibility and rational problem solving over obsessive technology updates."*