Костянтин

KOSTIANTYN MYRONIUK
.NET Developer
Hnivan, Ukraine | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)
LinkedIn: [open contact info](look above in the "contact info" section) | GitHub: github.com/KostiantynMyroniuk

PROFESSIONAL SUMMARY
Backend-focused .NET Developer with hands-on project experience designing and building RESTful APIs and
microservices on .NET 7-10 and ASP.NET Core. Skilled in Clean Architecture, CQRS with MediatR, and event-driven
communication using MassTransit, RabbitMQ and Azure Service Bus. Experienced with Azure cloud services, Docker
containerization, and unit testing with xUnit and Moq.

TECHNICAL SKILLS
Languages: C#
Frameworks: .NET 7-10, ASP.NET Core, Entity Framework Core
Architecture & Patterns: Clean Architecture, CQRS, MediatR, Microservices, REST API, Transactional Outbox Pattern
Messaging: MassTransit, RabbitMQ, Azure Service Bus
Databases & Caching: MS SQL Server, Azure SQL Database, Redis
Cloud & DevOps: Microsoft Azure, Azure Key Vault, Azure Blob Storage, Docker, Docker Compose, .NET Aspire, Git
Testing: xUnit, Moq, Unit Testing

PROJECTS

ProjectMS — Microservices Project Management System
github.com/KostiantynMyroniuk/ProjectMS
Tech stack: .NET 10, ASP.NET Core, .NET Aspire, Minimal API, EF Core, MS SQL Server, RabbitMQ, MassTransit, JWT, Azure Blob Storage,
xUnit, Moq
• Designed and built a multi-service backend orchestrated with .NET Aspire, following the Database-per-Service pattern.
• Implemented JWT-based authentication with ASP.NET Core Identity and a token-based project invitation flow with
expiration and duplicate-invite protection.
• Developed an event-driven email notification worker using MassTransit and RabbitMQ, and integrated Azure Blob
Storage for task file uploads.
• Wrote unit tests with xUnit and Moq to validate core business logic.
DotNetOrderService — Order Processing Microservice
github.com/KostiantynMyroniuk/DotNetOrderService
Tech stack: .NET 10, ASP.NET Core, MassTransit, Azure Service Bus, Azure SQL Database, Azure Key Vault, Docker
• Built a cloud-native order processing microservice designed for deployment on Microsoft Azure.
• Implemented the Transactional Outbox pattern with MassTransit to guarantee atomic database writes and reliable at-
least-once event delivery, preventing data loss in distributed transactions.
• Used Azure Service Bus for event-driven communication between services; persisted data in Azure SQL Database and
secured secrets with Azure Key Vault.
• Implemented idempotent request handling to prevent duplicate orders, and containerized the service with Docker.

EDUCATION

Vinnytsia National Technical University September 2022 – July 2026
Bachelor of Science in Software Engineering

LANGUAGES
Ukrainian: Native English: Intermediate (B1)