Костянтин

KOSTIANTYN MYRONIUK
.NET Developer
Vinnytsia, 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 experience designing and building RESTful APIs, modular monoliths,
and microservices using .NET 7-10 and ASP.NET Core. Skilled in Clean Architecture, SOLID principles, and CQRS with
MediatR. Proficient in synchronous server-to-server communication via gRPC and event-driven architectures using
MassTransit, RabbitMQ, and Azure Service Bus. Experienced with Azure cloud services, Docker containerization, CI/CD
pipelines, and comprehensive testing strategies using xUnit, Moq, and TestContainers.

TECHNICAL SKILLS
Languages: C#
Frameworks: .NET 7-10, ASP.NET Core, Entity Framework Core
Architecture & Patterns: Clean Architecture, CQRS, MediatR, Microservices, Modular monolith, Outbox, Inbox
API & Communication: REST API, gRPC
Messaging: MassTransit, RabbitMQ, Azure Service Bus
Databases & Caching: MS SQL Server, Redis
AI: GitHub Copilot
Cloud & DevOps: Microsoft Azure, Docker, .NET Aspire, Git
Testing: xUnit, Moq, TestContainers

PROJECTS

Order-services — Order microservice project demo
https://github.com/KostiantynMyroniuk/order-services
Tech stack: .NET 10, ASP.NET Core, Mssql, Redis, RabbitMq, Grpc, Docker, CI/CD, Jwt Auth
• Built a containerized order processing microservice using ASP.NET Core and .NET 10, utilizing Docker and CI/CD
pipelines for streamlined automated deployment.
• Architected the system utilizing Domain-Driven Design principles and the CQRS pattern to strictly separate command
and query responsibilities, improving code maintainability and scalability.
• Implemented high-performance basket caching and idempotent request handling using Redis.
• Configured RabbitMQ for asynchronous event-driven communication between services and established high-
performance synchronous integrations using gRPC.
• Secured API endpoints with JWT Authentication and implemented idempotent request handling to prevent duplicate
order processing.
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.

EDUCATION

Vinnytsia National Technical University September 2022 – July 2026
Bachelor of Science in Software Engineering
University courses: .NET - Basics, architecture and algorithms.

LANGUAGES
Ukrainian: Native English: Intermediate (B1)