Hey, I'm Illia 👋
Full-Stack .NET Developer
I’m a Full-Stack .NET Developer with over 7 years of experience building scalable web and cross-platform applications. I specialize in ASP.NET Core, React, and Xamarin, creating solutions for logistics, government systems, and complex admin panels. My focus is on performance, real-time data, and clean architecture.
Years of Experience
Happy Clients
Projects Done
Career & Experience
Full-Stack Software Engineer (.NET, Xamarin, React)
AproSoft P.H.U. Zbigniew Klima
Aug 2021 – Jan 2025
Developed WMS/DMS solutions for government and logistics clients using ASP.NET Core and React. Built mobile scanner modules with Xamarin, enabled real-time data via WebSockets and REST APIs, optimized SQL performance, and automated CI/CD pipelines.
Built a Firebase-integrated admin dashboard for 2,000+ users. Integrated WebSocket event channels for logistics tracking. Refactored reporting engine to reduce SQL load time from 90 seconds to under 10.
Modernized WPF modules, improving UI load time by 10%. Integrated RESTful APIs to connect front-end with legacy back-end. Maintained live debugging and hotfixes during release cycles.
Migrated legacy WebForms to ASP.NET Core and Next.js with modular front-end. Rebuilt admin panels with Tailwind CSS, deployed Docker containers to AWS, and conducted code audits for small/medium clients.
Bachelor’s Degree in Information Technology
Information Technology
College of Business and Law
2015 – 2018
Business Informatics & Legal Systems
My Professional Skillset
Tailwind CSS
Angular
C#
React / Next.js
AWS
Docker
Debugging
Azure
ASP.NET Core
REST API
MS SQL Server
PostgreSQL
Git / GitHub Actions
Xamarin
Featured Projects
Dashboard – Admin Panel
A full-featured SPA admin panel simulating an e-commerce management system with order tracking, analytics, multilingual UI, and AI-assisted forecasting. Built with mock data but fully API-ready.
My Role
Full-Stack Developer
Development Duration
< 1 month
Tech Stack:
Government Document Management System
A secure enterprise-grade document management system for a governmental structure, featuring encrypted workflows, 2FA access, and custom in-browser document readers.
My Role
Full-Stack Developer
Tech Stack:
High-Volume Log Sorting System
WPF + Web API system that processed 120TB of raw logs, extracting valuable structured data using multithreaded regex, automatic pattern generation and secure encryption pipeline.
My Role
Full-Stack Developer
Development Duration
< 1 month
Tech Stack:
Client Feedback
"Built us a turnkey website — from design to launch. Everything works smoothly, the site is responsive and easy to manage. Very happy with the result."
Alina
Owner of Online Store
"Professional approach, quick adaptation to changes and high-quality code. Will be happy to work together again."
Anonymous Client
Business Owner
"He significantly improved our legacy modules and modernized our admin system. Always proactive and delivers on time, with smart, clear solutions for complex tasks."
CTO, Logistics Platform
CTO
"Fast delivery, clean code and valuable ideas for improving our architecture. Collaboration was smooth and efficient."
Maksim S.
Tech Lead, SaaS Startup
"He helped me solve a complex problem and upgrade the project. A very handsome boy, he did everything quickly and well, I liked everything."
Maria S.
Private client