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Web & software
Building Scalable Full-Stack Apps with a .NET-First Foundation.
From robust REST APIs to responsive React frontends, I focus on shipping practical solutions that are built to last.
Stack & tools
Core technologies.
C#.NET.NET FrameworkPython
bash — stefan@portfolio
How I started
A quick timeline of how I got into programming, what shaped my approach, and what I focus on today.
- 2012First real “why”: a Counter‑Strike serverI wanted more than configs, so I started building custom features, plugins, and gameplay improvements for my server. That build → test → feedback loop is what got me hooked on programming.
- 2015–2020Freelance web workI helped people get online and improve existing sites — WordPress installs/edits, forums, and portals. It taught me deadlines, communication, and practical problem‑solving.
- 2021–NowDiligent Solutions | ProfitOptics (US)Lead engineer on a product generating $70M+ annually. Responsible for architecture, implementation, and long-term reliability, with a strong focus on performance and low-risk delivery.
Outside of coding
I’m naturally drawn to systems that combine software, hardware, and real-world problem solving.
Electrical science & tinkering
I enjoy projects where software meets the physical world — wiring, sensors, automation, and systems that can be tested, optimized, and improved over time.
Smart home builds
Automation, integrations, and reliability. I enjoy turning small ideas into “it just works” routines.
Video surveillance systems
Planning coverage, optimizing hardware placement, and making the setup secure and maintainable over time.
Home lab & Local AI
Experimenting with hardware, self-hosted tools, local AI models and small infrastructure setups to improve my workflow and productivity.