Denys

JUNIOR .NET DEVELOPER

Denys Kravets
C# | ASP.NET Core | SQL | Azure | React
Ukraine | Remote

t.me/Allthwayup github.com/GarbageCollectorHub [відкрити контакти](див. вище в блоці «контактна інформація»)

[відкрити контакти](див. вище в блоці «контактна інформація»)

SUMMARY

Junior .NET developer focused on backend: ASP.NET Core, REST APIs, EF Core and SQL. Can build a feature from API to
database and deploy it to Azure. Also work with React and basic TypeScript.

TECHNICAL SKILLS

Backend C# .NET ASP.NET Core Web API MVC REST APIs JWT Swagger

Frontend React JavaScript TypeScript (basic)

Data EF Core LINQ SQL SQL Server MySQL

Tools & AI Azure Azure App Service Docker Git ChatGPT Claude

Practices OOP SOLID Clean Architecture Unit tests

PROJECTS

AMZN Clone - Marketplace Backend ↗ GitHub
Team project | 5 developers (2 backend, 3 frontend) | 4 months | Backend Developer

ASP.NET Core Web API + MVC EF Core MySQL Azure Blob Storage JWT

- Built the main marketplace backend: catalog, product details, categories, search suggestions, reviews, ratings and Q&A.
- Wrote catalog and search queries with filtering, sorting, category tree and pagination using EF Core.
- Added JWT authentication with access and refresh tokens, and rate limiting for authentication endpoints.
- Used transactions to keep product ratings correct when several users rate a product at the same time.
- Added centralized error handling with one response format and logging.

Conference Room Booking API ↗ GitHub
Backend project | Clean Architecture

ASP.NET Core Web API EF Core SQL Server FluentValidation Unit tests

- Built a booking API with Clean Architecture (Domain, Application, Infrastructure, API) and unit tests for the pricing logic.
- Price calculation with time-based tariffs: a booking is split into parts, and each part is priced separately.
- Prevented double booking with a Serializable transaction: the second request for the same time gets 409.

Azure Translator Workspace - .NET Azure Web App ↗ Live demo
Full-stack project

ASP.NET Core MVC/Razor JavaScript Azure AI Translator/Speech Azure App Service

- Built a web app for text and file translation (TXT, DOCX, PDF) with Azure AI Translator and Speech, deployed to Azure.
- Split long texts into parts to fit API limits. Added upload limits and automated tests.

EDUCATION LANGUAGES

IT STEP Academy English
Software Development | 2023 - 2026 Intermediate (B1+)