Юрій

Yurii Khakhliuk
.NET Developer
Kyiv, Ukraine
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.NET Developer with commercial experience in backend and full-stack development. Skilled in building REST
APIs, internal enterprise tools, and scalable backend services using modern .NET technologies. Experienced with
microservice architecture, database design, and developing desktop and web applications. Focused on writing
clean, maintainable code and delivering reliable software solutions.

Technical Skills:
Languages: C#, JavaScript, TypeScript, SQL
Backend: .NET 7/8, ASP.NET Core, Web API, MVC, Microservices, gRPC, Apache Kafka
Frontend: Vue 3 (Composition API), TypeScript, PrimeVue, Tailwind
Desktop: WPF, WinForms
Databases: MS SQL Server, MySQL, MongoDB
Experience:
Helsi - Back End Developer
May 2026 - Present
• Develop and maintain backend services for a large-scale healthcare platform
• Design and implement REST and gRPC APIs for internal and external integrations
• Work with relational (MS SQL Server) and NoSQL (MongoDB) data stores
• Implement event-driven communication between services using Apache Kafka
Stack: .NET 8, ASP.NET Core Web API, Entity Framework Core, MS SQL Server, MongoDB, gRPC, Apache Kafka

OptimaPharm - .NET Developer
September 2023 - May 2026
• Develop internal services, web APIs, and desktop applications
• Design and maintain database architecture and business logic
• Implement internal tools that automate company workflows
• Work with enterprise systems related to logistics and operations
Stack: .NET 8, WPF, WinForms, Entity Framework Core, MS SQL Server

Freelance - Frontend Developer (Karate School Website)
Dec 2024 - Mar 2025
• Developed responsive website and admin panel
• Implemented schedule, events, and news management system
• Built reusable UI components and optimized UI for mobile
Stack: Vue 3, TypeScript, PrimeVue, Tailwind

Small Software Company (NDA) — .NET Backend Developer
August 2022 – September 2023
• Designed backend architecture and database schema for an e-commerce platform
• Developed RESTful APIs for product catalog, order processing, and user management
• Participated in system architecture discussions and backend feature development
Stack: .NET 7, ASP.NET Core Web API, Entity Framework Core, MS SQL Server, gRPC

Education:
Taras Shevchenko National University of Kyiv — Software Engineering (2019 – 2022)
Optical and Mechanical College of Taras Shevchenko National University of Kyiv — Software Engineering (2015 –
2019)