Viktor
Halushka

Fullstack .NET Developer

I build in C# across the whole stack: serverless Azure backends (Functions, Cosmos DB, Service Bus), REST APIs on ASP.NET Core with EF Core and SQL Server, and web interfaces in Angular and Blazor.

Comfortable with event-driven, asynchronous pipelines and high-load, multi-threaded services, plus authentication and permission models built on JWT and MSAL. Looking to keep growing as a backend-leaning fullstack engineer on ambitious, well-built products.

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Experience

Aug 2024 – Present

Intellidev sp. z o.o.

FollowApp.Care, clinic engagement platform

Fullstack .NET / Azure Developer

Built the admin platform on an Angular monorepo and the patient survey UI with lead capture
Implemented JWT-based permission scoping with MSAL authentication
Built backend microservices as Azure Functions, including an async PDF-generation service on Service Bus
Set up CI/CD pipelines to deploy Azure Functions and container apps

.NET · Angular · Azure Functions · Service Bus · Cosmos DB · MSAL · Docker

Feb 2023 – Jul 2024

Individual Entrepreneur

Browser Automation, web application

Fullstack .NET / Blazor Developer

Handled multi-threading and task coordination; optimized resource usage and performance
Developed Blazor UI components for the automation workflow
Collaborated using GitHub and Kanban

.NET 8 · SQL Server · EF Core · MassTransit · Docker · Blazor · Selenium · Postman

Jun 2022 – Aug 2022 Internship

Softserve Inc.

Historical Encyclopedia, API-based app

Backend .NET Developer

Developed secure ASP.NET Core APIs with JWT auth over EF Core data
Ensured code quality with testing and analysis tools; fixed bugs and shipped new features
Collaborated using Scrum and GitHub

.NET Core · ASP.NET Core · EF Core · JWT · MS SQL Server · NUnit · Moq · FluentAssertions

Technologies I work with

Languages & Core

C#
.NET / .NET Framework
TypeScript
JavaScript
SQL
Python
C++
LINQ

Backend & APIs

ASP.NET Core
Razor Pages
MVC
REST API
SignalR
MassTransit
RabbitMQ
JWT / MSAL

Frontend

Angular
Blazor
React
HTML / CSS

Cloud & DevOps

Azure Functions
Service Bus
Container Apps
Azure Web App
Key Vault
Blob Storage
Azure DevOps
Docker

Data

MS SQL Server
Azure Cosmos DB
Entity Framework Core
ADO.NET
Redis
SSMS

Desktop

WPF
Windows Forms
MVVM

Testing

xUnit
NUnit
MSTest
Moq
FluentAssertions
Selenium
Postman

Architecture & Practices

Event-Driven
Microservices
CI / CD
Git / GitHub
Scrum / Kanban

Selected work

ExpenseTracker

Personal spending tracker with shared lists for splitting costs.

ASP.NET Core · Angular

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Project two

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Project three