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Real-world Windows Desktop Solutions Specialist I help companies with existing desktop systems — not prototypes — by improving stability, performance, and maintainability so your software keeps running smoothly and grows with your business. I specialize in: ✅ WinForms & WPF development & modernization ✅ DevExpress UI & large, performant grids ✅ Legacy system cleanups & feature additions ✅ Multithreading, async, performance tuning ✅ Integration, reporting & database workflows With 17+ years of experience on real production products — including trading systems, market-risk tools, and enterprise real-estate platforms — I solve hard desktop problems where others struggle. If your project has complexity, users, and ongoing needs — let’s talk about how I can bring reliability, performance, and clarity to your codebase.

I am a Software engineer with 12 years of experience, Has experience in working with startups to large scale company. I have domain knowledge of Homecare, Travel & ecommerce etc. ⚡ Quick Learner ⚡ Patient Work Discipline Against Obstacles ⚡ Ability to Prioritize Tasks ⭐ OOP and System Design; ⭐ Asynchronous and multithreading development (TPL); ⭐ Rest API design, architecture, implementation and integration; ⭐ GIT (VSTS, github, bitbucket), SVN and TFS version control systems; Skill Sets: 🌟 Creating web applications with Reactjs 🌟 Developing backend applications with .Net Core 🌟 Unit testing 🌟 Working with RDMS (MySQL) 🌟 Rest API development for mobile applications and frontend development needs 🌟 MS Access 🌟Asp.net webforms 🌟Sandata EVV 🌟Carebridge EVV

⭐⭐⭐⭐⭐ Top Rated | Senior .NET Desktop, ASP.NET Core, SQL Server, QuickBooks & SAP Crystal Reports Expert | 10+ Years I help businesses build, modernize, and optimize desktop applications, web systems, databases, and reporting solutions using Microsoft technologies. With over 10 years of experience, I've delivered enterprise software for manufacturers, wholesalers, accounting firms, and service businesses worldwide. I specialize in solving complex technical challenges—from fixing slow applications and optimizing SQL Server databases to integrating QuickBooks Desktop, developing SAP Business One Crystal Reports, and building complete ERP solutions. Whether you're starting a new project or maintaining a legacy system, I focus on clean architecture, performance, and long-term maintainability. 🔹 Core Expertise Desktop Development • C & VB.NET WinForms • DevExpress UI • Windows Services • Multi-threaded Applications • Modern Windows 11 UI • Desktop Performance Optimization Web Development • ASP.NET Core • RESTful Web APIs • Third-party API Integrations • OAuth Authentication • JSON & XML Processing Database Development • Microsoft SQL Server • T-SQL • Stored Procedures • Performance Tuning • Query Optimization • Index Optimization • Database Design • Data Migration • Import & Export Automation SAP Business One & Crystal Reports I have developed hundreds of Crystal Reports for SAP Business One, including: • Sales Orders • Purchase Orders • A/R & A/P Invoices • Delivery Notes • Inventory Reports • Production Reports • Financial Reports • Customer Statements • Aging Reports • Barcode Labels • Custom Business Reports I also specialize in: • PLD to Crystal Report Conversion • Crystal Report Customization • SQL-Based Reports • Report Optimization • Complex Formulas • Parameters & Subreports QuickBooks Desktop Integration • QBFC SDK • Customer Synchronization • Order Synchronization • Invoice Synchronization • Inventory Synchronization • Price Updates • Windows Background Services • Custom Accounting Integrations ERP & Business Automation • Inventory Management • ERP Development • Workflow Automation • Business Process Automation • Dashboard Development • Reporting Solutions Hardware Integration • Serial Port (RS232/RS485) • Bluetooth Communication • Industrial Equipment • Machine Automation • Real-time Monitoring Systems Legacy Modernization • VBA to .NET Migration • Excel Macro Conversion • Legacy Application Refactoring • Desktop Application Upgrades 🔹 Recent Projects ✔ Developed a complete ERP solution for the diamond industry handling high-volume daily transactions. ✔ Designed and developed hundreds of SAP Business One Crystal Reports and converted numerous PLD reports into Crystal Reports. ✔ Built an unattended QuickBooks Desktop synchronization application using the QBFC SDK to automatically synchronize customers, orders, invoices, inventory, and pricing. ✔ Developed a real-time manufacturing dashboard monitoring production across 15+ plants. ✔ Implemented a fully compliant Saudi Arabia ZATCA Phase 2 e-invoicing solution. ✔ Built coffee roaster control software integrating hardware through Serial Port and Bluetooth communication. ✔ Developed an automatic desktop application updater with database migration support. ✔ Migrated legacy Excel/VBA business systems into scalable .NET desktop applications. 🔹 Why Clients Hire Me ✔ 10+ years of professional experience ✔ Top Rated on Upwork ✔ Strong expertise across Desktop, Web, Database, Reporting, and Enterprise Integration ✔ Clean, maintainable, and scalable code ✔ Fast problem diagnosis and performance optimization ✔ Direct communication with the developer doing the work ✔ Reliable delivery and long-term support 🔹 Technologies Languages: C, VB.NET, SQL (T-SQL) Desktop: WinForms, DevExpress Web: ASP.NET Core, REST APIs Database: Microsoft SQL Server Reporting: SAP Business One, Crystal Reports, RDLC Accounting: QuickBooks Desktop (QBFC SDK) Other: REST APIs, JSON, XML, OAuth, Windows Services, Barcode Systems, Serial Communication, Bluetooth, VBA Modernization 📩 If you're looking for a developer who can build, optimize, or modernize your desktop application, SQL Server database, Crystal Reports, QuickBooks integration, or ERP system, I'd be happy to discuss your project. Send me a message, and let's build a reliable solution that scales with your business.

🏆𝗜 𝗛𝗘𝗟𝗣 𝗖𝗢𝗠𝗣𝗔𝗡𝗜𝗘𝗦 𝗠𝗢𝗗𝗘𝗥𝗡𝗜𝗭𝗘, 𝗦𝗖𝗔𝗟𝗘, 𝗔𝗡𝗗 𝗦𝗧𝗔𝗕𝗜𝗟𝗜𝗭𝗘 𝗖𝗢𝗠𝗣𝗟𝗘𝗫 .𝗡𝗘𝗧 𝗦𝗬𝗦𝗧𝗘𝗠𝗦. Whether you're building a new SaaS platform, modernizing a legacy .NET application, or rescuing a system that's becoming difficult to maintain, I help you build software that's stable, scalable, and easier to evolve. Most clients come to me when: They’re starting a system and want to build it clean and scalable from day one Or the system already works… but feels fragile, slow, or hard to maintain Or growth is starting to break the architecture I step in, take ownership, and make sure the system is stable, scalable, and built to last. 🔹 QUICK SNAPSHOT ✔ 15+ years in .NET, SaaS, enterprise systems ✔ 100% Job Success on Upwork ✔ $50K+ delivered ✔ 2000+ hours on long-term systems ✔ Systems I built are still running after 10+ years 💡 My responsibility doesn't end when the code compiles. I make sure your system is maintainable, reliable, and ready for future growth. 🔧 WHAT I CAN HELP YOU WITH ✔ Stabilizing legacy .NET Framework applications ✔ Migrating to .NET Core / .NET 8 ✔ Designing scalable SaaS architecture ✔ Building and maintaining REST APIs ✔ Fixing performance & production issues ✔ Taking over systems where previous developers left 🧠 WHAT MAKES ME DIFFERENT Most projects don’t fail because of bad code they fail because NO ONE UNDERSTANDS THE SYSTEM anymore. I specialize in: • Understanding complex, undocumented systems • Fixing ROOT CAUSES, not symptoms • Improving architecture WITHOUT unnecessary rewrites Focus areas: • Clean, maintainable architecture • Long-term reliability • Proactive communication ⚙️ HOW I WORK I join as a SENIOR .NET ARCHITECT and not just a developer. ✔ I understand your system quickly ✔ I take ownership ✔ I work independently ✔ I focus on business impact 🧰 TECH STACK CORE TECHNOLOGIES Backend C#, .NET Framework, .NET 8, ASP.NET Core, Web API, Entity Framework, REST API, Web API Frontend Angular, Vue, TypeScript, Blazor, ASP.Net MVC Database SQL Server, PostgreSQL, MySQL, ORACLE Cloud & DevOps Azure DevOps, AWS, Docker, CI/CD Architecture SaaS Platforms, SaaS Archiecture, REST APIs, Microservices, Monolith, Legacy Modernization, Cloud Migration 🔄 SERVICES ✔ .NET Migration ✔ Legacy Modernization ✔ .NET Framework → .NET 8 ✔ Architecture Modernization ✔ Cloud Migration ✔ System Restructuring ⭐ REAL CLIENT FEEDBACK “Tremendous asset for large, long-term, complicated projects. He gets it done.” CTO, American Penaeid (2000+ hours) “He always gets the job done no matter how difficult it is.” Robin Pearl (10-year client) 💬 IF YOUR SYSTEM IS CRITICAL AND YOU NEED SOMEONE WHO CAN TRULY TAKE OWNERSHIP, LET’S TALK.

Professional Full Stack Developer with 15+ years of experience developing Web, Cloud (SaaS), and Desktop applications, in .NET Core and .NET Framework, mastering the following languages and technologies: ▪ Microsoft Azure, C#, ASP.NET, Razor, MVC, Web API, Entity Framework, WebForms. ▪ HTML5, CSS3, JavaScript, JQuery, Bootstrap. ▪ SQL Server, MySQL, PostgreSQL, Oracle. ▪ Winforms Desktop. I've been working with Microsoft Azure Cloud technologies for 8+ years: ▪ SaaS and multitenant cloud applications. ▪ Azure AppServices and FunctionApps implementation. ▪ Production/staging/development environment life-cycle strategies. ▪ SQL Azure implementation and recovery strategies. ▪ Azure Active Directory, and Users management. ▪ CI/CD strategies and GIT/TFS integration. ▪ and more... Also, I've worked with dozens of APIs and libraries, including but not limited to: ▪ Twilio, Stripe, SendGrid, MailChimp, MailKit. ▪ Google Maps, GeoJSON, Adobe PDF, Sway. ▪ ShareFile, SSH.NET. ▪ Swagger, AutoMapper, Mediatr, CSVHelper. ▪ Selenium, Bogus, Moq, NLog, Serilog, NUnit, XUnit. ▪ Bootstrap, JQuery, DataTables.js, Chart.js, Flot.js, PerfectScrollbar. Highly skilled in Database development, and data migration/transformation: ▪ T-SQL programming: Stored procedures, functions, and cursors. ▪ Data migration, Integration, and Reporting Services SSIS/SSRS. ▪ DB normalization and optimization.

I develop enterprise desktop and business applications using C#, WPF, WinForms, ASP.NET Core, Blazor, and SQL Server. I help businesses maintain, modernize, and extend internal software systems including warehouse tools, RFID tracking systems, reporting platforms, dashboards, and operational workflows. I work on both new development and existing enterprise applications with a focus on stable integrations, maintainable code, and long-term usability. ## What I deliver * WPF and WinForms desktop applications * Blazor and ASP.NET Core business systems * RFID and hardware device integrations * REST APIs and backend services * SQL Server design and query optimization * DevExpress and Telerik-based enterprise UI systems * Reporting dashboards and operational tools ## Proof of work * 1000+ hours on long-term .NET projects * Built multi-tenant Blazor business systems * Delivered Zebra FX7500 RFID tracking integrations * Developed enterprise desktop and warehouse automation tools * Multiple 5-star client reviews ## Tech stack * C#, .NET, ASP.NET Core, Blazor * WPF, WinForms * Entity Framework, LINQ, SQL Server * DevExpress, Telerik * REST APIs and backend integrations ## Also experienced with * RFID systems and IoT integrations * Twilio IVR and automation workflows * Legacy application modernization Message me with your project details. *Keywords: ASP.NET Webform, VB.NET, ASP.NET Core, NETMUAI, C#, Blazor, Microservices, Azure, SQL Server, Web API, Angular, Docker, DevOps, Cloud Architecture, SSRS, Enterprise Applications, Legacy application, Stripe Integration, PayPal API, Payment Processing, Third-Party APIs*