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Hi, I'm Miłosz.

I study computer science. I work with networking and Windows and Linux system administration, and in my free time I build my own projects, from apps to IoT devices on the ESP32.

About me

I graduated from an IT technical school and now I study computer science. I'm most interested in computer networking and system administration, so I like to try things out in practice, for example in my own lab with a small company network.

In my free time I work on my own projects: smart home devices, ESP32 electronics and websites. Away from the computer I fly drones and hold an A1/A3 drone pilot certificate.

Interests

  • Smart home
  • Computer networking
  • Drones - building and flying
  • Web development
  • Electronics
  • New technologies

Selected projects

IT infrastructure

Company IT Lab

A small company network built from scratch: pfSense firewall, Active Directory domain with GPO, GLPI helpdesk with LDAP login, Zabbix monitoring and automated backups with a tested restore.

Built with: VirtualBox, pfSense, Windows Server, Active Directory, Debian, GLPI, Zabbix, PowerShell, Bash

IoT

Weather station

An ESP32 weather station that pulls data from the OpenWeatherMap API. Wi-Fi is set up from a web browser, without reflashing the firmware.

Built with: C++, ESP32, PlatformIO, OpenWeatherMap API

Smart home

SUPLA temperature sensor

An ESP32 temperature and pressure sensor (BMP280) that sends readings to the Supla cloud, so they show up in the phone app.

Built with: C++, ESP32, PlatformIO, BMP280, Supla

Algorithms

Graphs and calculator

Two university projects: a program that checks whether a graph is bipartite (breadth-first search, adjacency lists) and an expression calculator using Reverse Polish Notation (shunting-yard algorithm).

Built with: C++

What I do

Systems and Active Directory

I administer Windows (client and Server) and Linux, and manage accounts, GPOs and NTFS permissions in an AD domain.

Windows Server, Debian, AD DS, DNS, GPO, NTFS, VirtualBox

Networking and security

I configure networks from addressing to firewalls, routers and switches. I know the basics of cybersecurity.

TCP/IP, DHCP, DNS, VLAN, SNMP, pfSense

Helpdesk and monitoring

I set up a ticketing system (ITSM) and server monitoring, so outages don't come as a surprise.

GLPI, LDAP integration, Zabbix, runbooks

Scripting and backups

I automate repetitive tasks and make backups whose restore I actually test.

PowerShell, Bash, cron

Databases and tools

I work with databases and keep my projects in Git repositories.

MySQL / MariaDB, MS SQL, Git, GitHub, MS Office

Electronics and IoT

I program ESP32 devices and repair electronics, including soldering.

C++, ESP32, PlatformIO, soldering

Experience & education

Experience

  1. IT support (informal)

    2020 - present

    Helping family and friends

    Hardware diagnostics and repair, OS reinstallation and configuration, home network setup and malware removal.

  2. Vocational internship

    03.2022 - 04.2022 10.2022 - 11.2022

    Electronics repair service

    Supported the team with day-to-day technical and service tasks: diagnostics, soldering and replacing faulty components (capacitors, resistors, ICs), and customer support.

Education

  1. Computer Science - engineering degree

    10.2025 - present

  2. IT Technician (qualifications INF.02, INF.03)

    09.2019 - 04.2024

    IT technical secondary school

Certifications

  • CCNA Routing and Switching: Introduction to Networks

    Cisco Networking Academy

  • IT Essentials: PC Hardware and Software

    Cisco Networking Academy

  • Introduction to Cybersecurity

    Cisco Networking Academy

  • Drone pilot certificate A1/A3

    Civil Aviation Authority of Poland

Let's talk.

Have a question about one of my projects or an idea for working together? Drop me a line, I'm happy to answer.

Send an email

I usually reply within a day.