By day, I write code at Slido (part of Cisco) so your meetings don't suck. By night, I solder things that probably void warranties.

Based in 🇸🇰 Bratislava, Slovakia, where the beer is cheap and the software engineers are not.

• 🖥️ Build native desktop apps and integrations for macOS (Swift) and Windows (C#). Yes, both.
• 🌐 Write TypeScript, React and Node.js, because one ecosystem is never enough
• 🔌 Design PCBs and program microcontrollers, because software bugs weren't enough and I needed hardware bugs too
• 🖨️ 3D design & print things at 2 AM that I absolutely did not need

Embed polls, quizzes, surveys and Q&A right into PowerPoint slides and have them launch automatically during the presentation.

Most of my time goes into the macOS integration (Swift, C, C++ and yes, even VBA). I also contribute to the Windows version (.NET/C#) and its frontend (React/TypeScript).

The same idea for Google Slides, built from several moving parts: a Chrome extension, a Google Slides add-on, a custom web player and the Slido Sidebar.

I helped build the Chrome extension and the add-on in the early days, before a dedicated team took the project over.

Native Windows and macOS apps that let presenters remote-control their computer from the Slido admin, switching between Slido and their slides mid-presentation. They have since been replaced by the deeper PowerPoint and Google Slides integrations above.

Create and manage Slido events and ask questions without leaving Slack. It had a nice run on Product Hunt but not enough users to survive, so it was shut down after two years. I built the backend (Node.js/TypeScript), the MySQL database and the Slack API integration.

An interactive web platform that teaches electronics through short lessons, experiments and mini-games. Players explore the town of SparkVille with Sparkie, a friendly electric spark, solving puzzles map by map: matching components to their symbols, wiring circuits, reading resistor colour bands and using measuring instruments.

There's also Sparkie's workshop, an interactive lab with a breadboard, multimeter, oscilloscope and Ohm's law experiments. It runs on phones, tablets and desktops without an account or installation, speaks 10 languages, and supports both IEC and ANSI schematic symbols.

Built with React, TypeScript and Vite, and hosted on Cloudflare. Basically my electronics course, minus the burnt fingers.

In my free time I volunteer at MakerSpace Bratislava, a community workshop at Nová Cvernovka. I help run the space and help people with their electronics and maker projects. I also teach:

• 🔋 Electronics fundamentals: my full-day course for complete beginners covering circuits, measurements, components and soldering
• 🤖 Electronics club for kids: weekly sessions where 8–15 year-olds go from blinking LEDs to their own Arduino projects
• 📐 3D modelling for printing (coming soon): a weekly course on designing functional parts in Autodesk Fusion

• Languages: Swift, C#, TypeScript, C/C++. I collect languages the way other people collect stamps.
• Hardware: ESP32, ESP8266, STM32, Arduino, Atmel AVR. If it has a chip on it, I'll flash firmware onto it.
• Tools: Xcode, Visual Studio and WebStorm for code, Autodesk Fusion for 3D modeling, KiCad for PCBs, and a soldering iron for everything else