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I am an experienced Full-Stack Software Developer & Solution Architect with strong analytical and problem-solving skills, delivering scalable, secure, and high-performance applications across Web, Desktop, Mobile, Cloud, Blockchain, and AI-powered systems. I specialize in building real-time, data-intensive, and enterprise-grade solutions that solve complex business challenges. ✅ Core Technical Expertise ______________________________________________________________________ ⚙️ Backend / Server-Side Development C#, .NET Framework, .NET Core, ASP.NET MVC, Web API Node.js, Express.js Real-time systems using SignalR & WebSockets Microservices architecture, RESTful APIs, modular scalable systems 🗄️ Databases & Data Engineering SQL Server, MySQL, PostgreSQL MongoDB, NoSQL, distributed data systems Database optimization, performance tuning, stored procedures 🎨 Frontend Development JavaScript, TypeScript AngularJS, modern Angular, React (if applicable) jQuery, Bootstrap, Knockout.js HTML5, CSS3, SASS/SCSS, responsive UI, UX-focused development 📱 Mobile & Cross-Platform Development Android (Native) Xamarin, PhoneGap/Ionic ElectronJS for cross-platform desktop apps 🛠 Tools, Libraries & Integrations Syncfusion, PDFSharp, AngleSharp, HTML Agility Pack Payment gateways, 3rd-party integrations, automation tools Reporting, dashboards, multi-tenant systems ☁️ Cloud & DevOps (If you want, I can expand this section) Azure, AWS basics CI/CD pipelines (GitHub Actions, Bitbucket Pipelines, Azure DevOps) Docker, containerized deployments 🧠 AI, Automation & Blockchain AI/ML integrations, automation scripts, data processing pipelines Bot development, chatbots, workflow automation Ethereum blockchain development Smart contract development (Solidity, Truffle, Web3) 🔄 Project Management & Development Methodologies Agile, Scrum, Kanban TDD (Test-Driven Development), Clean Code, SOLID Principles Git, GitHub, GitLab, Bitbucket, SVN JIRA, Azure DevOps, Trello, Freedcamp, MS Team Foundation I follow a structured Software Development Life Cycle (SDLC) to ensure quality, reliability, and maintainability at every stage—from requirements and architecture to development, testing, deployment, and long-term support. 🌟 Why Clients Enjoy Working With Me ______________________________________________________________ Strong logical, analytical, and architectural thinking Transparent communication and proactive collaboration Flexible with budgets and project scopes Committed to meeting deadlines and exceeding expectations Focused on long-term client relationships and continuous improvement I’m a highly self-motivated professional who takes ownership of every project. My goal is to deliver solutions that are scalable, secure, user-friendly, and aligned with your business goals.

Senior .NET Developer with 𝟖+ 𝐲𝐞𝐚𝐫𝐬 of experience working with 𝐂#, .𝐍𝐄𝐓 𝐂𝐨𝐫𝐞, WinForms, WPF, 𝐚𝐧𝐝 𝐀𝐒𝐏.𝐍𝐄𝐓 𝐌𝐕𝐂 to build and improve applications that perform reliably in real-world environments. My work focuses on creating systems that are stable, maintainable, and structured for scale, whether it's a new build or an improvement to an existing application. I have strong experience working with 𝐥𝐞𝐠𝐚𝐜𝐲 .𝐍𝐄𝐓 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬, including upgrading older ASP.NET MVC and .NET Framework systems to modern .NET Core architectures, improving performance, and making them easier to maintain. 𝐃𝐍𝐍 (𝐃𝐨𝐭𝐍𝐞𝐭𝐍𝐮𝐤𝐞) is a core part of my expertise. I develop custom modules, extend CMS functionality, and optimise existing implementations to improve performance and usability. 𝐌𝐨𝐬𝐭 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐈 𝐭𝐚𝐤𝐞 𝐨𝐧 𝐢𝐧𝐯𝐨𝐥𝐯𝐞: • Legacy applications that need modernisation or restructuring • Windows Desktop Applications (WPF, WinForms) • Applications that have become difficult to maintain • Performance issues under real usage • Features that need to be built properly, not patched 𝐓𝐄𝐂𝐇 𝐒𝐓𝐀𝐂𝐊 ⦁ C#, .NET Core, ASP.NET MVC, Web API, WPF, WinForms, Entity Framework, Dapper, SQL Server ⦁ Microservices Architecture, REST APIs, Distributed Systems, SignalR ⦁ Microsoft Azure (App Services, Functions, Azure DevOps), Cloud Deployment ⦁ Docker, CI/CD Pipelines, GitHub Actions ⦁ JavaScript, Basic Frontend Integration 𝐅𝐎𝐂𝐔𝐒 𝐀𝐑𝐄𝐀𝐒 • Backend development and API design • DNN CMS customisation and module development • Microservices and scalable system architecture • Performance optimisation and database tuning • Cloud deployment and Azure-based solutions • Code refactoring and system restructuring • Building stable, production-ready applications I approach every project with a simple goal: build solutions that work reliably today and continue to perform as they grow. 𝐈𝐟 𝐲𝐨𝐮 𝐧𝐞𝐞𝐝 𝐚 .𝐍𝐄𝐓 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐰𝐡𝐨 𝐜𝐚𝐧 𝐬𝐭𝐞𝐩 𝐢𝐧, 𝐮𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝 𝐲𝐨𝐮𝐫 𝐬𝐲𝐬𝐭𝐞𝐦, 𝐚𝐧𝐝 𝐝𝐞𝐥𝐢𝐯𝐞𝐫 𝐜𝐥𝐞𝐚𝐧, 𝐝𝐞𝐩𝐞𝐧𝐝𝐚𝐛𝐥𝐞 𝐫𝐞𝐬𝐮𝐥𝐭𝐬 - 𝐥𝐞𝐭’𝐬 𝐜𝐨𝐧𝐧𝐞𝐜𝐭.

⭐⭐⭐⭐⭐ Top Rated | 10+ Years Experience ⭐⭐⭐⭐⭐ I help businesses fix, optimize, and scale desktop applications and databases—especially ERP systems, accounting integrations, and legacy software. If your application is slow, your database is underperforming, or your system requires manual work, I can turn it into a fast, reliable, and automated solution. 🔥 What I specialize in: C# / VB.NET Desktop Application Development (WinForms, DevExpress) SQL Server performance tuning & query optimization ERP & Accounting Systems (Inventory, GST, Reporting) QuickBooks Desktop Integration (QB SDK, automation, sync) Fixing slow applications caused by database or code issues Excel/VBA → .NET Application or DLL Conversion API integrations & system synchronization Auto-updaters (Application + Database migration) Industrial systems (Serial Port, Bluetooth, real-time control) 💡 Proven real-world experience: ✔ ERP system for diamond industry (high-volume transactions) ✔ Optimized SQL performance for business-critical systems ✔ ZATCA Phase 2 e-invoicing system (Saudi compliance) ✔ Real-time monitoring dashboard (15+ manufacturing plants) ✔ Coffee roaster control software (hardware + real-time system) ✔ QuickBooks automated order & invoice sync ✔ Bulk email automation system (Google API integration) ✔ Excel VBA converted to scalable VB.NET DLL ✔ API-based auto-update system with database upgrades ⚡ Why clients hire me: I solve both application and database problems (end-to-end) Strong experience with real-world business systems (ERP) I quickly identify performance bottlenecks and fix them Focus on speed, stability, and long-term scalability 🛠️ Core Technologies: C#, VB.NET, WinForms, DevExpress, SQL Server, T-SQL, APIs, QB SDK 🎯 What you can expect: ✔ Faster applications and optimized database performance ✔ Clean, maintainable, production-ready code ✔ Reliable and scalable system architecture ✔ Clear communication and fast turnaround If your system is slow, outdated, or needs automation—I can quickly analyze, optimize, and deliver a stable solution. 🎥 I can also share working demos of similar systems.

Hi, I am an Electronics Engineer and Senior .NET Developer with over 12 years of experience specializing in custom Desktop Application Development (C#, WPF, WinForms) and Hardware-Software Integration, and AI-Driven Predictive Analytics. My core expertise lies in enabling seamless communication between desktop software and physical hardware devices—such as RFID/barcode scanners, microcontrollers, and industrial sensors—tailored strictly to your project requirements. 🌟 What My Clients Say: ⭐ "Subhodeep is an excellent programmer... Clean code, in sync with architecture." ⭐ "I am very impressed by Mr. Bhattacharjee's professional programming skill... Very satisfied and thankful." 🛠️ Industry Experience & Past Projects Throughout my career, I have engineered and delivered robust desktop solutions across a diverse range of industries, including: * Industrial & IoT: Machine vibration and heat detection/management systems (utilizing sensors as direct data inputs). * Logistics & Retail: Inventory management and automated barcode/RFID tracking. * Corporate & Government: Government-sponsored railway passenger charting systems and attendance tracking software. * Productivity & Design: Specialized interior decoration calculators and custom Microsoft Office add-ins. 💻 Architecture & Deployment Models I design flexible software architectures based entirely on your operational needs: * Fully Offline Solutions: High-performance apps running on local databases for zero-latency, internet-free environments. * Hybrid / Cloud-Synced: Applications that work locally but seamlessly sync data to the cloud when a connection is available. * Web Companions: ASP.NET Core web apps built to communicate with centralized servers and sync directly with your desktop ecosystem. * AI-Powered Analytics: I integrate intelligent data models into desktop dashboards to forecast future trends (such as predicting chart and graph trajectories based on historical data) and proactively flag operational anomalies like sales drops or inventory discrepancies. 🚀 Technical Expertise Software Development & UI/UX * WPF: Built using clean MVVM architecture with strict separation between the database and object layers. * WinForms: Optimized for high-performance, robust dashboards to track real-time data. * Avalonia UI: For modern, cross-platform desktop applications. * UI Component Frameworks: Extensive experience with DevExpress and Telerik to deliver beautiful, user-friendly interfaces. * AI & Intelligence: Predictive analytics, forecasting models, and anomaly detection. * Office Automation: Custom VSTO Add-ins for Word, Excel, and Outlook. * Web & Backend: ASP.NET Core for server-side communication and APIs. * Databases: SQLite for lightweight local storage, alongside scalable cloud databases. Hardware & Protocol Integration * Peripherals: RFID Readers, Barcode Scanners, and Microcontrollers (Arduino/STM32 ecosystems). * Protocols & Connectivity: TCP/IP, Bluetooth, RS-232, and native Serial Port communication. 📞 Ready to Get Started? Let's discuss how we can streamline your workflow, automate your data collection, or build a desktop application with a stunning interface for your users. Send me a message today, and let's hop on a brief call to map out your solution.

I help individuals, startups, SMBs, and enterprises build reliable, scalable, and user-friendly .NET applications. With 12+ years of experience in custom software development, I specialize in transforming ideas into high-performing desktop, web, and mobile solutions that drive measurable business results. ➜ 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐨 𝐟𝐨𝐫 𝐘𝐨𝐮 You’ll get more than just coding support — I ensure your software is: • Reliable & Scalable → Built on robust .NET architecture. • User-Friendly → Clean UI/UX for smooth adoption. • Future-Proof → Modern technologies and maintainable code. • On-Time → Agile approach with frequent updates and demos. ➜ 𝐌𝐲 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 • Desktop Apps: WPF, WinUI 3, UWP • Mobile Apps: Xamarin, MAUI • Backend & Frameworks: .NET Core, .NET 5/6/8, .NET Framework (3.5+) • Architectures: MVVM, MVC, PRISM, Singleton, n-Tier, Dependency Injection • Databases: SQL Server, SQLite, MySQL, Oracle • Integrations: Google APIs, Social APIs (Facebook, Twitter, LinkedIn) • UI/Controls: DevExpress, SyncFusion, Telerik ➜ 𝐖𝐡𝐨 𝐈 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 • Startups looking to launch MVPs • SMEs modernizing legacy systems • Enterprises needing robust desktop, web, or mobile apps • B2B & B2C businesses seeking tailored software solutions ➜ 𝐌𝐲 𝐏𝐫𝐨𝐜𝐞𝐬𝐬 1. Understand your goals & requirements 2. Propose the most effective technical approach 3. Share similar past work & align expectations 4. Start with a pilot milestone (risk-free) 5. Provide regular updates, demos, and post-deployment support ➜ 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞 • Top Rated Plus on Upwork with 100% Job Success Score • Client-Centric Approach: clear communication, flexible engagement • Confidentiality Assured: NDA & secure contracts • Proven Track Record: worked with startups and global enterprises • Easy Collaboration: available via Skype, Teams, Slack, Zoom I’m not just a developer—I’m a partner in your project’s success. My commitment to understanding your goals and providing ongoing support reflects my dedication to achieving the best outcomes for you. Let’s work together to create something extraordinary. Updating an existing app, or building something from the ground up — drop me a message, it is free to talk it over.

I am Parminder a passionate developer who lives and breathes Microsoft technologies and related frameworks. Coding isn't just a job for me; it's a genuine love and lifelong pursuit. I am always eager to take on new challenges and push the boundaries of what I can build. My areas of expertise include: Microsoft Technologies: ASP.NET, MVC, WinForms, WPF, Entity Framework, DDEX, Dapper, Spotify Front-End: AngularJS, React, HTML5, CSS3, Bootstrap 3, JavaScript, jQuery CMS & E-Commerce Platforms: NopCommerce, Umbraco, DNN, WordPress Mobile Development: Xamarin, Kotlin Cloud & Backend: Azure, AWS, Node.js Databases: MySQL, MongoDB, SQLite Other Technologies: Laravel, PHP, Spotify API integration, HIPAA I take pride in delivering clean, efficient, and scalable solutions. I work tirelessly to ensure complete satisfaction for every client. My approach is simple: quality work, open communication, and a results-driven mindset. I believe every project is a new challenge, and every challenge is a step toward success. Let’s build something great together! Cheers, Parminder Singh