Hire the Best Delphi Developers in Hanoi, VN

I'm a software developer specializing in full-stack development, desktop applications, and mobile solutions. With a strong background in C#, .NET, ASP.NET Core, MySQL, WinForms, and WPF, I have built and optimized desktop applications and enterprise solutions. I also have experience in mobile development using Java and Flutter, delivering efficient and user-friendly applications. In addition, I excel in quick tool development and big data processing with Python, as well as web development using Vue.js to create responsive and scalable applications. My expertise includes: ✔ Full-stack development (C#, .NET, ASP.NET Core, Vue.js) ✔ Desktop applications (WinForms, WPF) ✔ Mobile development (Java, Flutter) ✔ Data processing & automation (Python) ✔ Scalable and high-performance system design I am committed to delivering high-quality solutions and maintaining clear communication throughout projects. Let’s collaborate to turn your ideas into reality!

Hello, Thank for visiting my profile. I'm a software engineer with 8 years of experience in developing Desktop Application. I have worked on many projects in this field and got success. I am good at C/C++, Win32, MFC, Qt, C# WPF, Winform, python, Java core and proficient in Visual Studio, Eclipse, Qt Creator. I deeply understand OOP design and GoF design patterns. I am familiar with both Window and Linux. I very happy to cooperate with you. Hai Nguyen.

Hi.I am Pham Van Sy. I 'm application developer. I have 6 years experience working on C++/C#,WPF,MVVM...Let's contact with me if you see i can do it

I’m a Senior .NET Developer combined with a Business Analyst mindset, with 10+ years of experience delivering and rescuing business-critical systems. I don’t just develop features — I analyze business workflows, fix system bottlenecks, and deliver scalable solutions that actually improve operations. In addition, I bring strong UI/UX implementation skills, allowing me to turn designs into pixel-perfect, production-ready interfaces — ensuring both performance and user experience. 🏆 Top Rated Freelancer 🏆 100% Job Success Score 💰 $10,000+ Earned 🚀 What I Specialize In 🔹 ERP / CRM / Business Systems Development Design and build systems for Sales, HRM, Warehouse, Manufacturing, Fleet Management Translate business requirements into scalable technical solutions 🔹 Legacy System Modernization (.NET) Upgrade old systems (.NET MVC, WebForms) → .NET Core / Blazor Refactor messy codebases into maintainable architectures Improve system performance, stability, and scalability 🔹 System Performance Optimization Fix slow systems (database queries, API latency, UI rendering) Optimize SQL, backend logic, and frontend performance 🔹 Pixel-Perfect UI Development (Figma / Adobe → Code) Convert Figma / Adobe XD / Photoshop designs into responsive HTML/CSS Ensure pixel-perfect accuracy across devices and browsers Implement UI using Blazor, DevExpress, Telerik 🔹 Business Analysis + Technical Execution Analyze workflows and suggest better system design Reduce operational inefficiencies through smart automation 💡 Why Clients Hire Me I think like a business owner, not just a developer I can quickly understand complex legacy systems and take ownership I proactively identify risks, bottlenecks, and better approaches I communicate clearly and provide regular progress updates 🧠 Tech Stack Backend: C#, .NET Core, ASP.NET MVC, Web API, Entity Framework Frontend: Blazor, HTML, CSS, JavaScript, Bootstrap, jQuery UI Frameworks: DevExpress, Telerik (Kendo UI), Syncfusion Database & Data: SQL Server, PL/SQL, OLAP, MDX Other: Python, ETL, Power BI, Excel, .NET MAUI 🎯 Productized Services (Fixed Scope – High Value) 💼 ERP / CRM System Audit – from $200 - Review architecture, database, and workflows - Identify bottlenecks & risks - Provide actionable improvement plan ⚡ Fix Slow .NET System – from $300 - Analyze performance issues (SQL / API / UI) - Optimize response time and system stability - Deliver measurable improvements 🔧 Legacy System Upgrade (.NET MVC → .NET Core / Blazor) - Codebase assessment - Migration strategy - Step-by-step modernization plan 📊 Database & Query Optimization – from $150 - Analyze slow queries - Optimize indexes and execution plans - Improve overall system performance 📌 Best Fit Clients - Companies running old .NET systems with performance issues - Businesses needing ERP / HRM systems built or improved - Founders who want a developer that understands business, not just code 💬 Let’s Work Together If your system is slow, hard to maintain, or no longer fits your business — I can help you analyze, fix, and upgrade it efficiently.

FULL-TIME UPWORK FREELANCER – DEDICATED TO YOUR SUCCESS With over a decade of experience, I specialize in delivering high-quality solutions using the following programming languages and tools: • C/C++, MFC • C# (WinForms, WPF) • OpenGL, GLSL • Qt C++ • Python • Unity • Cocos2d My extensive expertise includes not only developing robust applications but also converting and optimizing projects seamlessly between Microsoft Visual Studio and Qt Creator. I am committed to providing top-tier service, ensuring your projects are completed efficiently and to the highest standards. Let’s work together to bring your vision to life!

Embedded engineer with expertise in hardware/software integration, real-time systems, and firmware development for diverse applications. Strong skills in C/C++, microcontrollers, and system optimization.