You will get a professional bug fix or troubleshooting for your .NET / Blazor app
Project details
Struggling with a stubborn bug, a broken API, or a slow query in your .NET app?
I am a Senior .NET Full Stack Developer with 4+ years of experience in enterprise applications. I specialize in diagnosing complex issues in modern Microsoft stacks and delivering clean solutions.
**What I can fix for you:**
• **Backend:** ASP.NET Core Web API, Dependency Injection, Middleware, and Auth (JWT/Identity) bugs.
• **Frontend:** Blazor (Server & WASM) logic, binding issues, and JS interop failures.
• **Database:** Slow SQL queries, EF Core relationship errors, and migration conflicts.
• **Architecture:** Refactoring into Clean Architecture using MediatR and CQRS.
**Why choose me?**
• **Senior Expertise:** I don't just patch code; I find the root cause and fix it permanently.
• **Clear Communication:** I explain exactly what went wrong and how I fixed it.
• **EU-Based:** Based in Italy (CET), ensuring convenient overlap for both EU and US clients.
Let's get your software back on track. Place an order today!
I am a Senior .NET Full Stack Developer with 4+ years of experience in enterprise applications. I specialize in diagnosing complex issues in modern Microsoft stacks and delivering clean solutions.
**What I can fix for you:**
• **Backend:** ASP.NET Core Web API, Dependency Injection, Middleware, and Auth (JWT/Identity) bugs.
• **Frontend:** Blazor (Server & WASM) logic, binding issues, and JS interop failures.
• **Database:** Slow SQL queries, EF Core relationship errors, and migration conflicts.
• **Architecture:** Refactoring into Clean Architecture using MediatR and CQRS.
**Why choose me?**
• **Senior Expertise:** I don't just patch code; I find the root cause and fix it permanently.
• **Clear Communication:** I explain exactly what went wrong and how I fixed it.
• **EU-Based:** Based in Italy (CET), ensuring convenient overlap for both EU and US clients.
Let's get your software back on track. Place an order today!
Programming Languages
JavaScript, ASP.NET, C#Coding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$50
|
Standard
$125
|
Advanced
$250
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 7 days |
Number of Revisions | 1 | 1 | 1 |
Bug Investigation | |||
Fix Documentation | - | ||
Detailed Code Comments | - |
Frequently asked questions
About Zdravko
.NET Full-Stack Developer | Blazor | REST API | 4+ Years
Piacenza, Italy - 6:45 pm local time
I'm a Full-Stack Developer with 4+ years of hands-on experience building
business applications for insurance, HR, logistics, and hospitality sectors.
𝗪𝗵𝗮𝘁 𝗜 𝗱𝗼 𝗯𝗲𝘀𝘁:
Custom web applications with ASP .NET Core MVC & Web API
Modern interactive UIs with Blazor (Server & WebAssembly)
Database design and optimization with SQL Server & Entity Framework
REST API development and third-party integrations
Italian e-invoicing (SDI/Fatturazione Elettronica) integrations
𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗜'𝘃𝗲 𝗯𝘂𝗶𝗹𝘁:
E-invoicing platform processing thousands of XML invoices via Italian SDI
Workplace booking system with interactive floor maps (AutoCAD + Leaflet.js)
Hotel check-in/booking system with identity verification & payments
HR management systems (bonuses, training tracking, asset management)
Warehouse management software with real-time sensor integration
𝗠𝘆 𝘁𝗲𝗰𝗵 𝘀𝘁𝗮𝗰𝗸:
C# | .NET Core 6/7/8 | ASP .NET Core MVC & API | Blazor | Entity Framework Core
SQL Server | MediatR | CQRS | FluentValidation | Azure | Clean Architecture
𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗰𝗵𝗼𝗼𝘀𝗲 𝗺𝗲:
• I communicate clearly and provide regular updates
• I write maintainable, well-documented code
• I'm available evenings and weekends (European timezone)
• I speak English, Italian (fluent), and 4 other languages
Ready to discuss your project? Send me a message with your requirements,
and I'll respond within 24 hours with a clear plan and estimate.
Steps for completing your project
After purchasing the project, send requirements so Zdravko can start the project.
Delivery time starts when Zdravko receives requirements from you.
Zdravko works on your project following the steps below.
Revisions may occur after the delivery date.
Analysis & Reproduction
I will review your code, set up the environment, and reproduce the bug to understand the root cause.
Fixing & Testing
I will implement the solution in the code and test it locally to ensure the bug is gone and no new issues are created.