Software engineer · Žilina, Slovakia
I’m Marek Hayden, a .NET developer shaped by telecommunications, industrial engineering, and real-world product work. This is the short story of how I got here—and what I build after hours.
01 · Career storyboard
Each stop added a new layer: understanding systems, maintaining them, then building products across the .NET stack.
Foundation
Engineer’s degree · Industrial Engineering · 2016—2018
Bachelor’s degree · Telecommunications Engineering · 2013—2016
Learned to look beyond isolated parts and understand how technology, processes, and people fit together.
First employer
C# Developer · Jan 2022—Feb 2023
Patch Manager · Jul 2018—Feb 2023
Maintained software-update systems, then moved into building company-wide tools with C#.
Second employer · current chapter
Building and maintaining .NET solutions
Working across application layers with .NET and Entity Framework to turn business needs into reliable software.
02 · After hours
Products and experiments where I learn by making something concrete.
Shared-finance product
Mobile-first expense splitting for shared spending, flexible splits, and settlements everyone can understand.
Visit Evenly (opens in a new tab)
Learning product
Reel-style lessons turning official C# and .NET documentation into focused, bite-sized learning.
Visit DotNetBites (opens in a new tab)Hardware + firmware experiment
ESP32 firmware and hardware design for a custom remote-controlled LEGO Technic car, driven with an Xbox-compatible Bluetooth controller.
03 · Say hello
I’m always interested in thoughtful engineering work, useful products, and difficult systems.
