Ілля

ILLIA KARMAZIN
Full-Stack Developer / .Net Developer (Junior)
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[открыть контакты](см. выше в блоке «контактная информация») Szczecin , Poland [открыть контакты](см. выше в блоке «контактная информация»)
https://github.com/ILLIAK31

ABOUT ME

Hi, my name is Illia, I’m 20 years old and currently a student at ZUT. I began learning programming in 2018. I am
a dedicated .NET Backend Developer with a passion for building scalable and maintainable solutions. I
specialize in developing RESTful APIs using ASP.NET Core and actively apply SOLID, Clean Architecture, CQRS,
and Domain-Driven Design principles to ensure clean, extensible, and testable architecture. My experience
covers the full development cycle — from validating input data and implementing business logic to
documenting APIs with Swagger and integrating with databases via EF Core. I’m also familiar with profiling tool
: Visual Studio Diagnostic Tools. I’m highly adaptable, continuously expanding my knowledge of design
patterns and best practices. For more details about my experience and the technologies I’ve worked with, feel
free to visit my LinkedIn profile.

WORK EXPERIENCE

Bootsik - Junior .NET Developer (Remote) July 2023 - April 2024

Responsibilities:
Developed and maintained web-based B2B applications using ASP.NET Core, Entity Framework Core, and
RESTful APIs.
Designed and consumed APIs in .NET (C#) and integrated them into React-based frontends in
collaboration with frontend developers.
Applied Entity Framework Core for database access and created optimized SQL queries and stored
procedures with PostgreSQL.
Used Docker Compose for creating isolated development and testing environments.

IS CITY LLC - Junior .NET Developer (Remote) OCTOBER 2024 - MAY 2025

Responsibilities:
Developed, tested, and maintained Web API services using C#/.NET
Designed functionality for small Web API modules
Created application modules integrated with MS SQL Server
Participated in Agile workflows, managing tasks in YouTrack and using Git for version control.

EDUCATION

WEST POMERANIAN UNIVERSITY OF TECHNOLOGY IN SZCZECIN , POLAND 2022 - 2026

Grade : 4.5 / 5.0

SKILLS

Languages & Frameworks: C , C++ (C++17/C++20/C++23) , C# , ASP.NET Core (Web API) , MVC , .NET , WPF ,
JavaScript , TypeScript , React , HTML , CSS

Databases & ORM: PostgreSQL , MS SQL Server , SQLite , MySQL , Entity Framework Core
 SKILLS

Tools & Technologies: Git , GitHub , Docker , SignalR , RabbitMQ , NUnit , xUnit , Vite , Swagger, Postman

Concepts & Practices: OOP , Multithreading , Asynchronous Programming , RESTful APIs , Cross-platform
development (Windows/Linux) , Performance Profiling (Visual Studio Diagnostic Tools) , CQRS , Mediator
Pattern, Dependency Injection , SOLID, LINQ , Clean Architecture, Design Patterns , Agile workflow, CI/CD
Basics, AutoMapper , MediatR

LANGUAGES

ENGLISH (B2)
POLISH (B2)
UKRAINIAN (NATIVE)
RUSSIAN (NATIVE)

MORE ABOUT ME

With five years of experience in C/C++ and four years in C# / ASP.NET Core / .NET / WPF, I have been involved in
various software development projects. Professionally, I have 18 months of hands-on experience as a .NET
Developer, working on real-world projects in a commercial environment. I worked at Bootsik, an outsourcing IT
company that specializes in developing custom software solutions for corporate clients, particularly in the
domains of logistics, transportation management, and related fields. The company provides full-cycle
development services — from business analysis to post-release support. I also worked at IS CITY LLC, a
software company focused on creating innovative solutions for the retail sector, delivering business-oriented
Web API platforms tailored to client needs. During university, I participated in a team project where we
developed a web application using Vite (React + TypeScript), ASP.NET Core, and SQLite. My role as a full-stack
developer included both front-end and back-end implementation. I worked with Entity Framework Core for
database interactions and applied asynchronous and multithreaded programming concepts to enhance
performance and responsiveness. I have a solid understanding of modern software architecture and backend
design principles. My experience includes cross-platform development using .NET Core on both Windows and
Linux environments. I enjoy working in a team environment, sharing ideas, and learning from others. I am
highly motivated to continue growing as a developer and to contribute to meaningful and technically
challenging projects.