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I build modern, scalable, and business-focused software solutions across Web, Mobile, Desktop, and Backend systems using the Microsoft ecosystem. From elegant user experiences to reliable back-end architecture, I help startups, businesses, and growing products transform ideas into production-ready applications that are fast, maintainable, and built for long-term growth. Whether you need a custom platform, API integration, business portal, CMS website, enterprise dashboard, or cross-platform application — I focus on delivering software that solves real business problems. 🎯 Core Expertise 🔹 C# .NET Development 🔹 ASP.NET Core Web Applications 🔹 RESTful API Development 🔹 Umbraco CMS Development & Customization 🔹 .NET MAUI Cross-Platform Applications 🔹 WPF Desktop Applications 🔹 MVVM Architecture 🔹 Entity Framework Core 🔹 SQL Server & Database Design 🔹 Azure Cloud Solutions 🔹 Authentication & Authorization 🔹 Microservices Architecture 🔹 Third-Party API Integration 🔹 Performance Optimization 🔹 Clean Architecture & SOLID Principles 💻 DEVELOPMENT STACK 🔷 Languages ✔ C# ✔ SQL ✔ JavaScript ✔ TypeScript ✔ HTML5 / CSS3 ✔ XAML 🔷 Frameworks & Platforms ⚙ ASP.NET Core ⚙ .NET 5 / .NET 6 / .NET 8 ⚙ WPF ⚙ WinForms ⚙ .NET MAUI ⚙ Umbraco CMS ⚙ Entity Framework Core 🔷 Front-End 🎨 Razor Pages 🎨 Blazor 🎨 Angular 🎨 Vue.js 🎨 Bootstrap 🎨 Responsive UI Design 🔷 Databases 🗄 SQL Server 🗄 PostgreSQL 🗄 MySQL 🗄 SQLite 🔷 Tools 🛠 Visual Studio 🛠 Git 🛠 GitHub 🛠 Azure DevOps 🛠 Postman 🛠 Docker ☁️ Cloud & DevOps 🔸 Azure App Services 🔸 Azure Storage 🔸 Azure Functions 🔸 Azure SQL Database 🔸 Azure Key Vault 🔸 CI/CD Pipelines 🔸 GitHub Actions 🔸 Azure DevOps Pipelines 🔸 Docker Containerization 🔸 Automated Deployments 🔸 Monitoring & Logging 🔐 Security & Authentication ✔️ ASP.NET Identity ✔️ JWT Authentication ✔️ OAuth 2.0 ✔️ Role-Based Access Control ✔️ Secure API Architecture ✔️ Data Protection & Encryption ⚙️ Solutions I Build ✅ Enterprise Web Applications ✅ SaaS Platforms ✅ Custom Business Management Systems ✅ CRM & ERP Solutions ✅ REST APIs & Backend Services ✅ Mobile Applications (.NET MAUI) ✅ Desktop Applications (WPF) ✅ CMS Platforms (Umbraco) ✅ E-Commerce Integrations ✅ Real-Time Applications ✅ Reporting & Analytics Systems ✅ Legacy System Modernization 🚀 Professional Strengths 💠 Full-Stack .NET Expertise 💠 Strong Software Architecture Skills 💠 Clean & Maintainable Code 💠 Business-Oriented Development 💠 Fast Learning & Problem Solving 💠 Excellent Communication 💠 Reliable Delivery & Long-Term Support 💠 Independent Freelancer — No Agency 💎 WHY CLIENTS WORK WITH ME ⭐ Business-Oriented Development ⭐ Production-Ready Solutions ⭐ Long-Term Maintainability ⭐ Scalable Architecture ⭐ Transparent Communication ⭐ Reliable Deadlines ⭐ Quality-First Development 🔑 RELEVANT KEYWORDS C# Developer, .NET Developer, ASP.NET Core, .NET MAUI, WPF Developer, Backend Developer, API Developer, REST API, Entity Framework Core, SQL Server, Azure Developer, Cloud Solutions, Umbraco Developer, CMS Development, Enterprise Software Development, Cross-Platform Mobile Development, Desktop Application Development, SaaS Development, Web Application Development, Microservices, Clean Architecture, Software Architecture, Full Stack .NET Developer. 🔒 I’m a passionate, independent developer, not an agency. 🕒 Available 40+ hours/week, flexible across time zones. 🌍 Let's build something exceptional together! 💪 📩 Click "Invite" or "Message" and let's discuss how I can help bring your project to life. Your idea + my expertise = success. 🚀

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.

Computer professional with more than 9 years of experience in modern approaches for web, mobile and infrastructure development. Core skills: ✔ JavaScript(ES5, ES6, ES7), TypeScript, Angular(2-11), Ionic, NextJS ✔ Twilio SIP Trunking and Media Integration ✔ VAPI and ElevenLabs Voice Agents integration with Live Telephony Calls ✔ AWS SQS, SNS, EC2, Rabbit MQ, Web Sockets, Stripe, sFox, Algolia, PayCaddy ✔ MongoDB, PostreSQL ✔ Node.js, ExpressJS, NestJS ✔ ICE Servers, Media Servers ✔ WebRTC

Please read below for a full list of my proficiencies, but for your quick reference as to what I am a master at: * payment gateway solutions (Stripe Certified Developer, PayPal, Authorize.net, Skrill, Braintree, Square, Adyen, cybersource,NMI,2 Checkout, stripe terminal,stripe identity verification, Moneris ,Airwallex,eway, Razorpay, Payu, Paytm, Icici bank, Master CardStripe, cloaking payment gateway expert, etc). * Chat Air.AI with GHL , live trasnfer, call recording , zapier setup with chat air ai, Update GHL lead with Chat Air.AI. * I will solve whatever your payment challenge is or solution that you are looking for. * Generally, I am quite clever with Rest APIs * I have now built several fundraising websites from the ground up that have exceeded my clients expectations. I obviously also maintain them as necessary (which isn’t much if I built them). 
 I'm a Software enthusiast with over 14 years of development experience. I am an expert in Javascript (Node.js, React.js, Vue.js & Angular.js) and all things PHP (Laravel, Magneto, Wordpress, Drupal, Shopify, YII, CAKE) and their complimentary mobile applications (Native Android, IOS, Flutter and React Native to develop applications). I am also experienced with Python, if that is your preference. Along my journey creating web applications, websites, and mobile applications I have contributed to several open-source libraries along the way. I have a strong base in software development with an awesome educational record in my curricula. Over the years, regardless of the technical challenge, I solve the issue with great precision and accuracy. Whether working autonomously or with a team I always exceed best practices, stringently employing version control systems (BitBucket, GIT, Deployment Pipes, Jenkins, etc..), and excel within Linux, AWS, CDNs, S3, Amplify , RDS, etc… I'm addicted to clean workflow using testing frameworks like Karma, Mocha, and Tape. I'm also a part of a team creating a cross-platform desktop application in Electron.js. I have sharp skills in database systems including MySQL, NoSQL databases, and Graph databases like OrientDB and Neo4j. I am Swiftlane api Integrator partner I write impeccable and maintainable code, building a reusable foundation, while also keeping my clients updated about emerging technologies. If the project involves a new technology, I easily and quickly become proficient in the new technologies without any complications, with hundreds of successfully completed projects. 
I look forward to working with you, Arun 

For fundraising website references, please find: 
 Our Fund ugive2 – Simple-Fast-Fundraising Colour Blast – Fundraising Made Easy

Senior Full Stack Web Developer | .NET | .NET Core | PHP | WordPress | CodeIgniter | Yii | JavaScript | MySQL Are you looking for a reliable Full Stack Developer who can transform your ideas into secure, scalable, and high-performing web applications? You're in the right place. I am a professional Full Stack Web Developer with **10+ years of experience** in designing, developing, and maintaining web applications for startups, small businesses, and enterprise clients. I focus on writing clean, maintainable code and delivering solutions that are fast, secure, and easy to scale. My Core Expertise. ✔ ASP.NET MVC ✔ ASP.NET Core ✔ C# ✔ PHP ✔ Custom PHP Development ✔ CodeIgniter ✔ Yii Framework ✔ WordPress Development ✔ WooCommerce ✔ JavaScript (ES6+) ✔ jQuery ✔ AJAX ✔ HTML5 ✔ CSS3 ✔ Bootstrap ✔ MySQL ✔ REST API Development & Integration ✔ Third-Party API Integration ✔ Payment Gateway Integration (Stripe, PayPal, etc.) ✔ Authentication & Authorization ✔ Database Design & Optimization ✔ Bug Fixing & Performance Optimization Services I Offer. • Custom Web Application Development • Business Websites • E-commerce Websites • Admin Dashboards & CRM Systems • ERP & Management Systems • WordPress Website Development & Customization • Custom CMS Development • API Development & Integration • Website Maintenance & Support • Website Speed Optimization • Database Design & Optimization • Bug Fixing & Troubleshooting • Existing Project Enhancements • Responsive Website Development Why Choose Me. ✔ 10+ Years of Professional Experience ✔ Clean, Well-Structured & Maintainable Code ✔ Fast Communication & Regular Project Updates ✔ On-Time Delivery ✔ Client-Focused Approach ✔ High-Quality Standards ✔ Long-Term Support After Project Completion I believe every successful project starts with clear communication and a thorough understanding of your business goals. Whether you need a new web application, want to upgrade an existing system, fix bugs, optimize performance, or integrate third-party services, I can provide reliable and efficient solutions tailored to your needs. I am committed to delivering quality work, meeting deadlines, and building long-term relationships with my clients. Let's discuss your project and bring your ideas to life

Hi, I’m Qasim — a Senior .NET Developer with 9+ years of experience building scalable, high-performance software solutions. I specialize in modern .NET Core, Microservices, and Cloud-based architectures, and I’m passionate about delivering clean, reliable code that drives real business value. My skill set is extensive and includes the following: Back-end Skills: -C#, .NET Framework, .NET Core – designing clean, maintainable, and scalable solutions. -Entity Framework Core, Dapper.net – efficient database access and performance optimization. -Microservices & Distributed Systems – architecture, communication, and deployment. -RESTful APIs, oData, gRPC – reliable integrations and cross-system communication. -Identity & Security – MSAL, Microsoft Identity Framework, Identity Server. -Messaging & Real-time – RabbitMQ, SignalR, WebRTC. -Databases – MS SQL Server, MySQL, PostgreSQL. Front-end Skills: -Web UI – HTML5, CSS, Bootstrap, Tailwind. -JavaScript & TypeScript – jQuery and Angular. -Responsive UI – modern, user-friendly interfaces. I have a strong understanding of Agile/Scrum practices, ensuring smooth teamwork and adaptability. With experience in GitHub, GitLab, and Bitbucket, I maintain clean workflows and code integrity. In short, my skills and experience make me a strong fit for your project, and I’m eager to discuss how I can contribute.