Denys

JUNIOR .NET BACKEND DEVELOPER

Denys Kravets
.NET Backend | ASP.NET Core | Azure | React
Ukraine | Remote

@Allthwayup LinkedIn GitHub [відкрити контакти](див. вище в блоці «контактна інформація»)

SUMMARY

Backend-focused Junior .NET Developer with practical experience in ASP.NET Core, REST APIs, EF Core and SQL. Strongest in
building complete backend features: API contracts, validation, data access, authentication, transaction consistency and structured
error handling. Main focus is .NET backend development; also able to support React/JavaScript frontend tasks and deploy .NET
apps to Azure.

TECHNICAL SKILLS

Backend C# .NET ASP.NET Core Web API MVC

Frontend React JavaScript React Native

Data EF Core LINQ SQL SQL Server MySQL

API & Auth REST APIs JWT Swagger / OpenAPI

Cloud & Tools Azure Azure App Service Docker Postman Git

Design OOP SOLID Separation of Concerns

PROJECTS

AMZN Clone - Marketplace Backend ↗ GitHub
Team project | Backend Developer

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

- Built the core marketplace backend for catalog, product details, categories, search suggestions, ratings/reviews and product
Q&A.
- Implemented catalog/search query logic with filtering, sorting, category-tree support and pagination using EF Core.
- Implemented JWT authentication with access/refresh tokens, protected endpoints and current-user context.
- Handled transaction-safe rating updates, centralized API error handling, CORS, rate limiting and Azure Blob Storage integration.

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

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

- Built and deployed a translation workspace with language selection, selected-text translate/replace workflows, speech playback,
copy actions and local history.
- Added TXT/DOCX/PDF import with safe upload limits, translation-ready segmentation, PDF preview, request protection and
automated tests.

Blockchain - .NET Web Application ↗ GitHub
Educational project

ASP.NET Core MVC Proof of Work RSA signatures SignalR

- Built a Bitcoin-inspired blockchain app with SHA-256 hashing, PoW mining, RSA-signed transactions, an in-memory mempool,
mining rewards and halving, wallet balances, chain validation, and basic synchronization across three simulated nodes.

E D U C AT I O N C E R T I F I C AT I O N S LANGUAGES

IT STEP Academy Cisco Networking Academy English
Software Development - Ukraine Python Essentials 1, 2025 Intermediate (B1+)