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  1. Freelancers

Kostiantyn Bezrukavyi

.NET | Backend (ASP.NET) | Mobile (MAUI) | Desktop (WPF) | SQL | Clean Architecture
Offer Kostiantyn work on your next project.

Ukraine Kharkiv, Ukraine
11 days 10 hours back
Temporarily not working temporarily not working
age 19 years
on the service 3 months 29 days
  • ASP.NET Web Api
  • Windows Presentation Foundation (WPF)
  • Android Development
  • Entity Framework Core
  • C#.NET Developer
  • GitHub/GitLab
  • Domain-Driven-Development
  • .net maui
  • MySQL
  • SQL
  • .NET
  • Clean architecture
Freelancer Kostiantyn B. — Ukraine, Kharkiv. Core skill — C#, Web Programming

Rating

Successful projects
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Rating
266
C#
192 place out of 1197
Web Programming
2226 place out of 6421

Language proficiency level

Українська Українська: fluent
Русский Русский: fluent
English English: upper-intermediate

CV

About Me

Specializing in backend development, database management, and complex architecture (Clean Architecture, DDD). I write code that is easy to maintain and scale. I guarantee strict adherence to deadlines and a professional approach to tasks SOLID, DRY.

Here you get only clean, maintainable code, clear communication, and understanding 🙂


How I Can Help

  • Desktop: Development and maintenance of applications using WPF, MAUI.
  • Mobile: Hybrid applications with .NET MAUI for Android.
  • Backend: 
    • REST API development on ASP.NET Core
    • Security: JWT, Refresh Tokens
    • Data validation: FluentValidation
    • Database management: MySQL, SQL Server, EF Core
  • DevOps & Tools: Setting up CI/CD pipelines in GitHub Actions, integration of external APIs.


My Experience

I have Full Stack development experience. Designed and developed a full-scale personal project ForgeFit — a mobile app for fitness and nutrition tracking:

  • Architecture: Clean Architecture, DDD, Client-Server (REST API + Mobile), Repository and Unit of Work patterns implemented.
  • Using ASP.NET Core, EF Core, MS SQL, .NET MAUI + Web API.
  • Integration of external services, barcode scanner, photo recognition.

https://github.com/Wostan/ForgeFit


Tech Stack:

  • C#, .NET
  • ASP.NET Core Web API
  • EF Core
  • .NET MAUI
  • MS SQL / MySQL
  • JWT / FluentValidation / Swagger
  • Git / GitHub


Open to interesting proposals. Feel free to contact me 🙂

Skills and abilities

Programming

Mobile development

Writing

Portfolio


  • ForgeFit - Full-Stack Application (ASP.NET Core, .NET MAUI)

    Web Programming
    ForgeFit - Full-Stack Application (ASP.NET Core, .NET MAUI) — example of freelancer's portfolio work in category Web Programming
    A comprehensive, cross-platform fitness and nutrition tracking app built completely from scratch. This project demonstrates my ability to design complex software architectures and work with the modern Microsoft technology stack.

    Key Features & Implementation:
    - Backend: Built with ASP.NET Core 9, adhering to Clean Architecture and Domain-Driven Design principles. Secure JWT authentication is fully integrated.
    … - Database: Designed a scalable MS SQL database using Entity Framework Core, implemented via Repository and Unit of Work patterns.
    - Frontend: Developed a modern, adaptive dark-themed UI with an intuitive, user-centric UX using .NET MAUI.
    - Integrations: Connected external APIs, including FatSecret for food logging, a barcode scanner, AI-powered food recognition from photos, and ExerciseDB for workout routines.
    - Infrastructure: The backend is fully containerized with Docker to ensure seamless deployment.

    This is a non-commercial project created as a comprehensive showcase of my software engineering capabilities.

    #dotnet #csharp #aspnet #aspnetcore #maui #backend #cleanarchitecture #sql #mssql #restapi