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⭐⭐⭐⭐⭐ 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 build complex web applications, SaaS platforms, Chrome Extensions, Chromium-based browsers, and AI-powered agent systems — especially projects that require more than standard CRUD development. 7+ years of experience | 7,600+ hours on Upwork | 60+ projects | Top Rated Plus I work across the full stack and can take a project from architecture and development through API integration, AI automation, debugging, optimization, and deployment. 🚀 What I specialize in 🌐 Chrome & Browser Engineering Chrome Extensions / Manifest V3 Chrome APIs & browser automation Chromium-based custom browsers Web scraping & authenticated browser workflows Extension debugging, optimization & API integration 🤖 AI Agents & Automation AI agent development AI-powered workflow automation MCP (Model Context Protocol) AI agents interacting with browsers and web applications Tool/API integrations for AI agents Headless browser & remote GUI automation LLM-powered application workflows 💻 Web & SaaS Development Laravel / PHP / MySQL Next.js / TypeScript Node.js / Express / NestJS SaaS applications & subscription systems Admin dashboards & complex web applications ⚙️ Backend & Integrations REST APIs & third-party integrations PostgreSQL / MongoDB / Supabase Authentication & subscription systems Data processing & automation Docker, Vercel, Railway & server deployment Why clients work with me ✓ 7+ years building production web applications and browser-based software ✓ 7,600+ hours on Upwork with happy clients ✓ 60+ completed projects ✓ Top Rated Plus freelancer ✓ Comfortable working with existing codebases as well as building from scratch ✓ Strong at debugging complex technical problems, not just implementing new features ✓ Able to work across web applications, browsers, APIs and AI-powered automation Whether you need a Chrome Extension, Chromium-based browser, AI agent, SaaS application, API integration, or help extending an existing system, send me the details. I'll review the requirements and suggest the most practical technical approach.

My aim is to provide 100% client satisfaction with 100% quality work. 6+ years of experience in design, development and management of websites, portals and enterprise applications. I am Senior Web Developer and full time freelancer. I have extensive experience in Web Development with ASP.NET, MVC, C#, VB and Classic ASP. I also have experience of PHP, WordPress and MySQL. Primary Skills: - Classic ASP, ASP.Net 3.5 and above. - Web Service, Web APIs, WCF - MVC, C#, Visual Basic - HTML/HTML5, CSS/CSS3, Bootstrap - AngularJS, AJAX, JavaScript, JSON, Jquery - MEAN Stack(MongoDB, ExpressJS, AngularJS, Node.JS) - Entity Framework, LINQ, ADO.NET - SQL Server 2005 and above, MySQL - Comfortable with working on existing projects. - Fast learner - Excellent Troubleshooting skills - Social API integration(Facebook, Instagram, Linkedin, etc.) Source control tools: - GitHub - Team Foundation Server(TFS) - SVN Task Management tools: - JIRA - Basecamp - Trello - Pivotal Tracker I am looking forward to hear from you. Thanks.

I am Experienced Web developer and Desktop application developer with outstanding programming skills that allow to create high-quality and bug-free products. I have strong knowledge and experience in back-end technologies ASP.NET (C#) with MVC, C#.NET,VB.NET,MS SQL Server,MS Access,MS SQL database with MS Entity Framework and in front-end JavaScript, JQuery, Ajax, Bootstrap and HTML. I have a broad range of software development skills and abilities. Here is a short outline of skills - Designing multi-threaded Windows Forms applications from the ground up - Understand a problem or need and prototype a solution for it - Integrating applications into existing systems - Depth knowledge of Crystal Reports - Account Software - Stock Maintenance Software - File Transfer Software - Work with an ERP and Developing ERP - Selenium Automation Tool - Signal R for Messaging tool - Queuing Software Using RabbitMQ Web Development Skills: - Web Applications - Websites - E-commerce sites and marketplaces - API's development and payment - Membership sites - Google services and other services integration. - Any custom website - Automation using Puppeteer Sharp