Hi, I’m David Stein, an IT Specialist based near Znojmo, Czech Republic. I focus on building, managing, and optimising network infrastructure, Linux and Windows server environments, and delivering solid, efficient programming solutions.
With hands-on experience across system administration, troubleshooting, and scripting, I enjoy working on both backend systems and the code that powers them. Whether it’s deploying secure networks, automating server tasks, or writing custom tools, I bring a practical and reliable approach to IT challenges.
I’m always learning, exploring new technologies, and looking for ways to streamline operations and improve overall performance.
In past, I have had a lot of opportunities to contribute to or create different projects as embedded systems, custom web applications, firmwares for custom hardware, etc. I also have a lot of experience with home automation and 3D design, and 3D printing.
In my spare time, I am interested in other IT disciplines like ethical hacking, reverse engineering and electronics.
Tech skills:
- 🖧 Networking (Mikrotik, pfSense)
- 🐧 Linux (Debian, Docker environments, scripting)
- 🪟 Windows Server (Active Directory, RDP, etc.)
- 💻 Programming (PHP, C/C++, Python)
- ☁️ Virtualisation & Cloud (Proxmox, VMware)
- 🔐 Security Basics
- ⚔️ Penetration testing and ethical hacking
- 🔍 Monitoring tools (Zabbix)
- ⚡Electronic and IoT design and implementation
- and many more
Work experience:
- webmaster and creator of many web presentations and e-shops – up to this day
- year as a junior programmer at Q2 Interactive
- junior programmer
- new technology implementation
- database designer
- backend developer
- the IT specialist at IT Consulting CZ s.r.o. – since 2015
- design, implementation, and management of networks
- Windows/Linux servers management
- the service technician (everything about IT)
- embedded system developer (see my projects)
Current and past certifications:
- Mikrotik MTCNA
- Mikrotik MTCTCE
- Dahua DHCA – IPVSS
- Dahua DSS Pro
- Jablotron 100+
- Certified under Czech Decree No. 50/1978 Coll., § 8 – Qualified Electrical Technician
Profiles:
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