Дмитро

Dmytro
Junior / Trainee ASP.NET Core Backend Developer
📍 Lviv Region, Ukraine (Open to remote and on-site work in Lviv)
📧[открыть контакты](см. выше в блоке «контактная информация»)
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GitHub: https://github.com/Dimab-b
LinkedIn: [открыть контакты](см. выше в блоке «контактная информация»)

Professional Summary
ASP.NET Core Backend Developer focused on designing and building modern backend applications with C# and ASP.NET Core Web API. Developed several production-style backend projects implementing Clean Architecture, Onion Architecture, CQRS, JWT authentication, Redis caching, Hangfire background processing, Docker containerization and automated testing.
Skilled in designing RESTful APIs, working with Entity Framework Core and PostgreSQL, integrating external APIs and applying modern backend development practices including dependency injection, validation, logging, resilient HTTP communication and software architecture patterns.
Currently pursuing a Bachelor's degree in Cybersecurity at Lviv Polytechnic National University and actively seeking a Trainee or Junior ASP.NET Core Backend Developer position where I can contribute from day one while continuing to grow as a backend engineer.

Technical Skills
Programming Language
• C#
Backend
• ASP.NET Core Web API
• ASP.NET Core MVC
• REST API
Architecture & Design
• Clean Architecture
• Onion Architecture
• CQRS
• MediatR
• Repository Pattern
• Unit of Work
• Specification Pattern
• Dependency Injection
Databases
• PostgreSQL
• MySQL
• Entity Framework Core
• Code First Migrations
Authentication & Security
• JWT Authentication
• Refresh Tokens
• ASP.NET Identity
• Role-Based Authorization
• HTTP-Only Cookies
• Optimistic Concurrency (RowVersion)
Caching & Background Processing
• Redis
• Hangfire
Validation & Logging
• FluentValidation
• Serilog
• Global Exception Handling
Testing
• xUnit
• Moq
• FluentAssertions
• Unit Testing
• Integration Testing
DevOps & Tools
• Docker
• Docker Compose
• Git
• GitHub
• Swagger / OpenAPI
• Visual Studio
Other
• Polly
• Telegram Bot API
• Fondy Checkout API

Projects
Tattoo Salon Web API
Tech Stack: ASP.NET Core Web API, Clean Architecture, CQRS, MediatR, PostgreSQL, Entity Framework Core, Redis, Hangfire, JWT Authentication, Docker, xUnit
REST API for automating tattoo salon business processes.
Key achievements
• Designed and implemented REST API using Clean Architecture.
• Applied CQRS pattern with MediatR.
• Implemented JWT authentication with Refresh Tokens.
• Added Role-Based Authorization.
• Integrated Redis distributed caching.
• Developed Hangfire background jobs.
• Implemented PDF report generation and email notifications.
• Added optimistic concurrency control using RowVersion.
• Implemented FluentValidation and global exception handling.
• Wrote Unit and Integration Tests.
• Dockerized the entire application using Docker Compose.
GitHub:
https://github.com/Dimab-b/TattooSalon-API-

Crypto Monitoring API & Telegram Bot
Tech Stack: ASP.NET Core Web API, Onion Architecture, CQRS, MediatR, Redis, Hangfire, Polly, Telegram Bot API, Docker
Backend service for automated cryptocurrency monitoring and Telegram notifications.
Key achievements
• Built scalable backend using Onion Architecture.
• Applied CQRS with MediatR.
• Integrated Telegram Bot API.
• Implemented scheduled background jobs with Hangfire.
• Added Redis distributed cache.
• Implemented Polly Retry and Circuit Breaker policies.
• Dockerized the application using Docker Compose.
• Integrated external cryptocurrency API.
GitHub:
https://github.com/Dimab-b/Crypto-Monitoring-TelegramBot-Api

Best Shop — ASP.NET Core MVC
Tech Stack: ASP.NET Core MVC, Entity Framework Core, MySQL, ASP.NET Identity, Fondy API, Docker
Educational e-commerce application built to learn server-side web development.
Key achievements
• Implemented product catalog and shopping cart.
• Added ASP.NET Identity authentication.
• Integrated Fondy payment gateway.
• Worked with Session State.
• Used Entity Framework Core with MySQL.
• Dockerized the application.
GitHub:
https://github.com/Dimab-b/E-Commerce-Shop-ASP.NET-Core-MVC-Docker-Fondy

Education
Lviv Polytechnic National University
Bachelor's Degree in Cybersecurity
2025 – Present

Languages
• Ukrainian — Native
• English — Pre-Intermediate (A2+, actively improving to B1)
• Russian — Professional Working Proficiency

Additional Information
• Looking for a Trainee or Junior ASP.NET Core Backend Developer position.
• Available for both remote and on-site work in Lviv.
• Ready to complete a technical assessment.
• Actively improving knowledge of ASP.NET Core ecosystem, Git, SQL and software architecture.