System Administrator · Cybersecurity

Keeping systems secure and data safe.

Hi, I'm Michał — an IT professional based in Gdańsk, Poland. I work in a Security department, where I focus on keeping systems, infrastructure and data safe. I'm passionate about all things IT: I love exploring new technologies, automating everyday work and constantly sharpening my skills. Technology is more than my job — it's what keeps me motivated every day.

Get in touch

Skills

What I work with every day

Security

System & container hardening
Vulnerability management (CVE / CVSS)
Event monitoring & analysis
Least privilege
Security headers & CSP
TLS / Cloudflare

Infrastructure

Linux (Ubuntu Server)
Docker & Docker Compose
nginx / reverse proxy
VPS servers
Computer networks
Backups

Automation & development

Bash
PowerShell
Node.js / Express
JavaScript
SQL (PostgreSQL
SQLite)
Git

Projects

Selected work

All projects

AlertIT — live CVE vulnerability feed

A real-time feed of newly published CVE vulnerabilities — no page reloads, no API rate limits, running in a hardened Docker container.

Node.js
Express
Server-Sent Events
CVE JSON 5
Docker
nginx

Details Visit live

Blog

Problems solved

All posts

27 October 2026 1 min read

Aktualizacja dotnet - Ścieżka Windows vs Nazwa aplikacji

Szybka ściąga odnosnie nazewnictwa komponentów .net vs nazewnictwo folderów Windows w jakim się znajdują.

Looking for an IT & security specialist?

I'm happy to talk about a new role, a collaboration or a project. Drop me a line or grab my CV.

Get in touch