- 🌱 I’m currently deepening my knowledge in distributed .NET systems, cloud architecture and automation
- 👨💻 Some of my projects are available here: repositories
- 💬 Ask me about C#, .NET, EF Core, system design, backend architecture
- 📫 How to reach me LinkedIn, Discord, krystianpetek2@gmail.com
Software Engineer with 3.5+ years of commercial experience building scalable backend systems using .NET.
I specialize in designing maintainable, production-grade architectures and delivering systems across the full development lifecycle — from system design to cloud deployment and automation.
My recent work focuses on multi-tenant commerce systems, 3D/XR integrations, rendering pipelines, and workflow automation used in large-scale e-commerce and manufacturing environments.
Currently transitioning projects to self-hosted GitLab infrastructure and expanding DevOps capabilities.
- C# / ASP.NET Core / EF Core / LINQ / SignalR
- CQRS / Clean Architecture
- RESTful APIs
- Integration Testing
- Multi-tenant systems
- PostgreSQL
- Redis
- MongoDB
- Microsoft SQL Server (SSMS)
- Backend integrations of AI-powered services
- Python automation pipelines & scripts
- Workflow orchestration with n8n
- Rendering workflow automation
- Blazor Server & WASM
- React with TypeScript
- Flutter
- Google Cloud Platform
- Microsoft Azure
- Docker
- CI/CD (GitLab self-hosted & Azure DevOps)
- Keycloak (OIDC)
- RabbitMQ
- Google Pub/Sub
- Rx.NET
- BodyStack — full-stack monorepo for multi-integration fitness data platform with real-time processing, modular dashboard and public landing page |
.NET Minimal API+React 19+PostgreSQL+SignalR - GarageGenius — service process management system for vehicle repair workshops |
Angular+ASP.NET Core - AwesomePlaces — mobile app for discovering interesting places |
Flutter+ASP.NET Core - KriniteAuthServer — authentication server (IdentityServer4 → OpenIddict)
- KriniteWebShop — microservices-based e-commerce platform |
ASP.NET Core+Blazor - FakeInstagram — Instagram-like SPA using JSONPlaceholder API |
React - VacationPlanner — employee vacation planning system |
ASP.NET Core+WPF