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ROMAN YAHODKA
Junior .NET Backend Developer
Kyiv, Ukraine | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)
GitHub: [https://github.com/VortexLite] | LinkedIn: [[open contact info](look above in the "contact info" section)] | Work format:
[remote / hybrid / on-site]

PROFESSIONAL SUMMARY
Junior .NET Backend Developer with hands-on experience building REST APIs and backend applications using C#, ASP.NET Core,
Entity Framework Core, SQL Server, and PostgreSQL. Implemented authentication, order processing, inventory logic, and third-
party integrations in personal projects. Familiar with Clean Architecture, CQRS, Redis, RabbitMQ, Docker, and integration
testing. Bachelor’s degree in Computer Science.

TECHNICAL SKILLS
Languages: C#, SQL, JavaScript
Backend: ASP.NET Core Web API, ASP.NET Core MVC, Entity Framework Core, LINQ, REST APIs, async/await
Databases: PostgreSQL, Microsoft SQL Server
Architecture: Clean Architecture, DDD, CQRS, SOLID, Dependency Injection, Repository Pattern
Messaging & caching: RabbitMQ, Redis, IMemoryCache
Security & testing: ASP.NET Core Identity, JWT, Refresh Tokens, xUnit, Testcontainers
Tools & frontend: Git, Docker, .NET Aspire, Swagger/OpenAPI, Razor Views, HTML, CSS

SELECTED PROJECTS
CinemaBooking — Cinema Management & Booking Platform | Jul 2026 – Present
Personal backend project | In development
• Developing cinema management services using ASP.NET Core Web API, Clean Architecture, Domain-Driven Design, CQRS,
and MediatR.
• Implemented data persistence with EF Core and PostgreSQL, including repositories and Unit of Work.
• Integrated Redis caching with invalidation strategies and cache stampede protection.
• Built event-driven messaging with RabbitMQ, domain events, and the Transactional Outbox pattern; added background
processing with retries and dead-letter handling.
• Created integration tests using xUnit and Testcontainers with PostgreSQL; configured Docker and .NET Aspire.
Tech: C#, .NET 10, ASP.NET Core, EF Core, PostgreSQL, Redis, RabbitMQ, MediatR, Docker, .NET Aspire, xUnit

PixelPulse — Electronics E-Commerce Platform | Jan 2025 – May 2025
Personal full-stack project
• Developed an electronics e-commerce application using ASP.NET Core MVC, Web API, and Clean Architecture.
• Implemented REST APIs for products, users, shopping carts, wishlists, and orders; added filtering, search, and pagination.
• Built authentication and role-based authorization with ASP.NET Core Identity, JWT, and refresh tokens.
• Implemented order processing and inventory restoration on cancellation, using EF Core transactions to maintain data
consistency.
• Created an admin panel, integrated Nova Poshta delivery API, and used IMemoryCache and Mapster.
Tech: C#, ASP.NET Core MVC / Web API, EF Core, SQL Server, JWT, Mapster, IMemoryCache, Razor, JavaScript

Film Catalog — Film Management Application | Mar 2024
Educational / personal project
• Built an ASP.NET Core MVC application with a REST API for film and category management.
• Modeled hierarchical categories and many-to-many film/genre relationships; implemented LINQ filtering and sorting.
• Connected MVC and Web API through asynchronous HTTP requests and JSON.
Tech: C#, ASP.NET Core MVC, Web API, EF Core, SQL Server, Razor, JavaScript

ADDITIONAL EXPERIENCE
Desktop application projects (2022–2024): Built WPF and WinForms applications for warehouse, retail, and service-center
workflows; developed a file manager and a cryptocurrency tracker using CoinCap REST API.

EDUCATION
Bachelor of Computer Science — National University of Life and Environmental Sciences of Ukraine, Kyiv | Jun 2025

LANGUAGES
Ukrainian — Native | English — [B1]