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JaKuBisz/README.md

Hi, I'm Jakub 👋

.NET engineer 🇨🇿
From code to hardware — and everything in between.

LinkedIn Projects


About

  • 🧑‍💻 .NET developer. I started with .NET before high school and had my first dev job before I finished it, working on a dispatch software for the Integrated Rescue System of Czechia.
  • 🔍 I like knowing how things work beyond my own code. One month it's GPU kernels, another it's the networking in my homelab — if something around me breaks or interests me, I end up inside it.
  • 🔧 Most of my side projects start because something around me broke or annoyed me — car diagnostics over OBD2, 3D printer firmware, BLE gadgets, home automation.
  • 🏠 I run my own homelab — TrueNAS, Dockerized services - Immich, Nextcloud, Home Assistant, n8n workflows, the network, the backups. Keeping my stuff local. If I rely on it, I want to understand it.
  • 💬 Interested in clean layered architecture, dependency injection, performance and parallelism, CI pipelines, and wiring the physical world into software.

Tech I work with

Core

C# .NET Blazor EF Core SQL Redis xUnit Autofac

Tinkered with

Kotlin Python TypeScript JavaScript C++

Tooling

Docker GitHub Actions Home Assistant n8n


Projects

When is a GPU actually worth it? Turns out often it isn't: on a 64×64 matrix multiply the GPU came out 11× slower than a plain loop, because transfer cost dwarfs the arithmetic. Small and focused, but the numbers are honest, every variant is validated, and CI runs on every push. Practical part of my master's thesis.

C# .NET 10 ILGPU ComputeSharp xUnit GitHub Actions

Open PR against Bambu Lab's slicer fixing third-party filaments being unusable in the AMS, and remaining weight never updating. Finding and fixing a real bug in a large unfamiliar C++ codebase.

C++ open source

Android app that reads live telemetry from your car's OBD2 port over Bluetooth and explains faults in plain language using an LLM, so P0420 becomes something you can act on.

Kotlin Bluetooth OpenAI API

Outlook add-in that adds hashtags to mail, calendar and tasks. Layered C# architecture with an Autofac container that registers services by scanning for attributes, so adding a service means adding an attribute and nothing else. Tag clustering compares digits exactly and text fuzzily, so #invoice and #invoices merge but #Sprint1 and #Sprint2 never do. My bachelor's thesis.

C# VSTO WPF/MVVM Autofac Entity Framework SQLite


Education

  • 🎓 Master's (Ing.), Managerial Informatics — Silesian University in Opava, 2026. Thesis: Parallelization of Computations Using Graphics CardsGpuBenchmarkingSuite
  • 🎓 Bachelor's (Bc.), Informatics — VŠB – Technical University of Ostrava, 2024. Thesis: Hashtag Plugin for MS OutlookHashTrack

Open to interesting problems, especially where .NET meets hardware or AI.

Pinned Loading

  1. OBD2AI OBD2AI Public

    Android application - analyze your car by AI

    Kotlin 8 1

  2. BambuStudio BambuStudio Public

    Forked from bambulab/BambuStudio

    PC Software for BambuLab and other 3D printers

    C++ 1

  3. GpuBenchmarkingSuite GpuBenchmarkingSuite Public

    When is a GPU actually worth it? CPU vs GPU benchmarks in .NET 10 with ILGPU and ComputeSharp: matrix multiply & Game of Life, strong/weak scaling, Amdahl and Gustafson analysis

    C#

  4. HashTrack HashTrack Public

    Outlook add-in that adds searchable hashtags to mail, calendar and tasks — layered C# VSTO architecture with Autofac DI, caching decorator and similarity-based tag clustering. Bachelor's thesis, VŠ…

    C#