Hire the Best ASP.NET Developers
in Serbia

🔔🔔🔔 Job success lowered just because I return money from escrow, nothing else. 🔊 Vibe Programming available 💻 Programming Languages 🟣 C# | 🔵 VB.NET | 🔴 Python | 🟡 JavaScript/TypeScript | 🟠 Node.js | 🟢 SQL /TSQL ☁ Cloud Platforms 🔹 Azure: AppService, Functions, ServiceBus, CI/CD (GitHub Actions), CosmosDB, VM 🔹 AWS: Lambda, DynamoDB, EC2 (VM) 🔹 Google Cloud: Firebase 🏗 ORM & Data Access 🟢 Entity Framework | 🔵 Dapper | 🔸 ADO.NET | 🟠 LINQ 🌐 Backend Development ✔ ASP.NET Web Forms/MVC | ✔ Web API | ✔ SignalR ✔ Blazor (Server & WebAssembly) | ✔ MAUI ✔ WCF Data Services | ✔ IdentityServer/Duende | ✔ Keycloak ✔ MediatR (CQRS & Request/Response Patterns) ✔ Node.js (Express, Fastify, NestJS, WebSockets, WebRTC) 🎨 Frontend & UI Technologies 🔹 React | React Native 🔹 AngularJS 1.5+ / Angular 2+ 🔹 jQuery | Bootstrap 3,4,5 | Material Design 🔹 WebRTC (Real-time Audio/Video Communication) 📱 Mobile & Hybrid Development 🔹 Ionic | NativeScript | Xamarin | MAUI | React Native 🖥 Desktop Development 🔹 WPF | WinForms | UWP | MAUI 🗄 Database & Data Storage 🔹 Relational Databases: MS SQL Server (2000 - 2016) | PostgreSQL | SQLite | Oracle (9i, 10i, 11i) | MS Access | MySQL 🔹 NoSQL & Vector Databases: MongoDB | RavenDB | Firebase Firestore Elasticsearch (Full-text search) | Qdrant | Pinecone (Vector Search & AI-based Retrieval) 🏢 Operating Systems 💠 Windows | 💠 Unix/Linux 🚀 Frameworks & Architecture 🔹 .NET Framework 2.0 - 4.8 | .NET Core 3+ 🔹 Blazor (Server & WebAssembly) | MAUI 🔹 Node.js (Express, Fastify, NestJS) 🔹 IdentityServer/Duende, Keycloak 🔹 MediatR (CQRS, Request/Response & Notification Handlers) 🔹 UnitOfWork & Repository Pattern 🔹 Async/Parallel Execution 🤖 AI & Machine Learning 🟠 OpenAI (GPT, Codex, DALL·E, etc.) 🟣 Ollama (Fine-tuning & RAG) 🟢 ML.NET (Machine Learning for .NET) 🔵 ONNX Runtime (Optimized AI Model Inference for .NET) 🔥 Why Work With Me? ✅ Over 15 years of hands-on experience in multi-tier development, relational databases and business applications. ✅ Extensive experience in HR, GIS, Medical, Real Estate, GPS Tracking, Ecommerce and Commercial Software Development. ✅ Strong expertise in web applications, including REST/OData, GraphQL, SOAP/XML services. ✅ Advanced database design skills, including complex SQL queries, stored procedures and performance tuning. ✅ Strong network administration background (MCSA Certified). ✅ Excellent analytical skills, adaptable to evolving technical environments. ✅ Proficient in front-end, back-end, cloud, AI, real-time communication (WebRTC) and DevOps, ensuring end-to-end software development expertise. 📩 Let’s Connect! 🚀 Looking for a reliable full-stack .NET & Node.js developer to elevate your business? Let's talk!

I’m a senior .NET backend engineer focused on building APIs, integrations, and automation-heavy systems. Over 10+ years on Upwork, I’ve delivered large-scale backend solutions with 5.0 feedback across 18K+ hours. What I build: Clean, versioned REST APIs Integrations (CRM, billing, IoT, webhooks, payment providers) High-load backend services Background workers, schedulers, messaging Secure authentication (OAuth2, JWT, RBAC) Tech: .NET 6–8, C#, EF Core, SQL Server, Azure, Docker, Redis, RabbitMQ What you get: stable, production-ready backend clear documentation fast communication reliable delivery without micromanagement If your project needs a senior engineer who can take ownership and deliver from day one — let’s talk.

Welcome, I am Szabolcs, from Serbia, Europe. With over 23+ years of experience in software development, digital graphic design, cybersecurity expert I bring a wealth of knowledge, skill, and dedication to every project. My passion lies in delivering high-quality results tailored to meet your unique needs. Whether it’s a small or an enterprise project, I take pride in providing solutions that drive success. WHY WORK WITH ME? ✔ 23+ Years of Experience ✔ 3700+ Successful Projects ✔ 1300+ Returning Customers ✔ 99% Client Satisfaction MY AREAS OF EXPERTIZE INCLUDE: ✔ Software Development • Web Development - Websites, Web Shops, Landing Pages, ERP/CRM Web Applications, Custom Solutions, WordPress Websites & Custom WP Plugins • Desktop Application Development - Only for Windows OS • Database Development - Microsoft SQL Server, MySQL, MS Access • Microsoft Office Automation - MS Word, MS Excel, MS PowerPoint, MS Access ✔ Digital Graphic Design • Branding & Identity - Logo Design, Business Cards & Stationery, Brand Guidelines & Style Sheets • Marketing & Advertising - Social Media Graphics, Posters & Flyers, Banner Ads & Promotional Materials • Web & UI/UX Design - Website Layouts & Mockups, Mobile App Interfaces, Icon & Button Design • Digital Illustrations & Artwork - Concept Art & Character Design, Vector Illustrations, Infographics • Print & Editorial Design - Magazine & Book Covers, Brochures & Catalogs, Packaging & Label Design ✔ Cybersecurity • Network Security - Firewall & Intrusion Detection Systems (IDS/IPS), Virtual Private Networks (VPNs), Secure Network Architecture Application Security - Application Security, Application Security, Application Security • Endpoint Security - Antivirus & Malware Protection, Mobile Device & IoT Security, Patch Management & Vulnerability Scanning • Identity & Access Management (IAM) - Multi-Factor Authentication (MFA), Privileged Access, Management (PAM), Single Sign-On (SSO) • Penetration Testing & Ethical Hacking - Red Team vs. Blue Team Operations, Vulnerability Assessment & Exploitation, Social Engineering & Phishing Defense ✔ Other Various Services TECHNOLOGIES I SPECIALIZE IN: ✔ C#, VB.NET, PHP, ASP.NET , VBA, C++ ✔ Microsoft SQL Server, MySQL, MS Access, ✔ WordPress, Angular, jQuery, JavaScript ✔ HTML5, CSS3 ✔ DIVI, Avada, Laravel ✔ Adobe Photoshop, Adobe Illustrator, Adobe Premier, CorelDRAW, Canva MY SOFT SKILLS: I’m a dedicated, hard-working, and highly motivated professional with extensive knowledge and excellent problem-solving skills. As a team player, I bring focus and efficiency to every project I handle. I’m committed to delivering results that exceed expectations, and I encourage you to check out my reviews and portfolio to see the quality of my work. I value clear communication, reliability, and efficiency—ensuring a smooth collaboration from start to finish. If you’re looking for someone with deep industry insight and a commitment to excellence, let's connect and create something outstanding together! Best regards, Szabolcs Benkő

Thank you for visiting my profile. Let introduce you to my skills. - Web Developer and very excited to help with your project. - Got skills in Adobe Photoshop retouching and photo and image editing and manipulating. - Work well with Excel and Google spreadsheet and macros. - Love Photography. In the last 20 years I've been working on various fields, including administration, developing desktop software written in .NET and IT lecturing. Now, my work is focused on programming and my top skills are in WEB development. Very persistent at what I am doing, open for new experience and learning.