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⭐⭐⭐⭐⭐ 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code ✔ Reliable and scalable system architecture ✔ Clear communication and fast turnaround If your system is slow, outdated, or needs automation—I can quickly analyze, optimize, and deliver a stable solution.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.

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 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*

Focused & result-driven Full Stack IT Software professional with nearly 17 years of experience in Design, Development, Deployment, Debugging, Testing and Troubleshooting of application in desktop , web and mobile .Net Core Skills : .Net, WPF, C#, MVVM, MAUI, Asp.Net Core, WebApi, Microservices, Azure etc AI Core Skills : Python, AI/ML, RAG Agents, LLM, Open AI, LangChain,Fast API, Vapi, n8n etc Tools : VS 2022, CoPilot, Claude Code, SQL, PostgreSql etc Excellence in gathering and understanding requirements of clients & other multiple stakeholders (at strategic and tactical levels), followed by translation into functional specifications as well as provisioning of suitable solutions Extensively worked in Agile, CI/CD, GIT, TFS etc Engaged in various phases of Product Development Life Cycle from analyzing requirements specifications, high level design, user story development, Implementation, unit testing, defect fixing, Code reviews and production support maintenance An effective Sr. Developer and leader with proven skills in development and leading teams during the project phase; holds expertise in managing & supporting the clients

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

I have over 18 years of experience working with Companies of various Domains from Startups to Fortune 500 Companies. I am a Full Stack Software Developer and Consultant with working experience in: ✔ System Analysis ✔ System Design ✔ Software Development Life Cycle (SDLC) ✔ Project Implementation ✔ Testing and Integration From the project's first build, through adding interactivity, re-branding and ultimately developing a multinational/language prominence, I have guided my clients through a range of transitions with ownership. I have always thrived to give the best quality work to my esteemed clients and for that have always kept myself abreast of best practices and trends to be able to best advise on the right tools and technologies to fit their needs. Having that in mind I am constantly investing in myself, building my knowledge and gaining as much experience as possible. Throughout my career as every other passionate developer, I am constantly keeping myself up to date with the latest technologies. If you have any project development requirement, it would be pleasure for me to discuss with you. With my personal experience in development, I could be your one stop solution to all your needs: AI EXPERTISE ============ I am having special expertise in AI Implementation in existing projects as well as development of new projects. I began by up skilling my team—investing in training, certifications, and research. I started integrating basic AI-ML models into our existing applications—recommendation engines, chatbots, and predictive analytics. As our capabilities grew, so did our ambition. Today, AI-ML is not just an add-on service for us—it’s a core part of our digital transformation offering. ✔I use AI development tools to add code summary, description for creating test cases, code refactoring, code reviewing and also using for code development. This speeds up the output for client resulting in good time and cost savings ✔ I use existing AI models such as ChatGPT Open AI for improving the processes of the system. I also use Text generation, Image generation and Voice analysis. ✔ I can also create Custom AI Agents for the Web such as Chatbots, which can work with Text and Audio based solution along with 3D avatar based which interact with visitors, along with appropriate Lips movement and text/voice to sync with Avatar. We can create Customized model for the Web App and train the AI Models. SOME KEY FACTS =============== ✔ Expertise in C#, .NET framework,ASP.NET MVC, ASP.NET Core, ADO.NET, Entity Framework, Dapper, MySQL, MS SQL Server ✔ My Detailed front end experience and technological stack are: Java Script frameworks (AngularJS to 19, NodeJS, ReactJS, VueJS, Express JS, NextJS) ✔ Rated one of the top service providers for Blazor Framework. Have already proved my expertise by successfully executing a number of projects in Blazor on both Client side and server side development. ✔ Experience in creating, updating and supporting web applications (SQL Server, ORM Frameworks, ASP.NET (WebForms, MVC), jQuery, AjaxControlToolkit, KendoUI - Telerik Extensions, AngularJS, Angular 2 to Angular 19, ReactJS, Bootstrap, ABP.IO) ✔ Rated among best and first technical person to provide services in ASP.NET Core ✔ Very Good Experience in JQuery, JavaScript, C#, .NET Core 7.0, WebAPI, Rest APIs, SOAP APIs, Azure blob storage, Azure tables, Azure functions, Azure Services, Azure Web Jobs, Entity Framework, Linq etc. ✔ 17+ Years of Experience and Expertise with: • Blazor - Server Side and Client Side Development (Only for Web) • Angular • ReactJS • DevExpress Tools • Syncfusion • Telerik • CI/CD Pipeline • Jenkins • DevOps • Boilerplate Template (ABP.IO) • Metronic Theme • ChartJS, D3JS, Google Charts • Agile Methodologies like Scrum • SOLID Principle & DRY Principle • Design Patterns • Kubernetes • Docker • Azure • AWS ✔ Specific expertise in development from ground up right from Analysis, Design and Development ✔ Expert in developing Web Application, Windows Services and Web Services in Microsoft Visual Studio .Net IDE using C#.Net, VB.NET, ASP.NET MVC, .NET Core, ADO.NET and SQL Server. ✔ Proficiency in Web Services, SOAP, XML, XSL, CSS, DOM, HTML, AJAX, JavaScript and JQUERY. ✔ Worked extensively with Data Adapter, Dataset, Data reader as part of ADO.NET to access and update database. ✔ Extensive experience in SQL Server Database design, Database maintenance, developing SQL queries, stored procedures using SQL Server. ✔ Good working knowledge with designer tools such as Figma, Illustrator, Dreamviewer, Photoshop. Let's get in touch to discuss how I can assist you with my Skills !