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.

I am a Senior Full-Stack .NET Developer with 10+ years of experience building scalable SaaS platforms, enterprise applications, cloud-native backends, and AI-powered solutions. I specialize in modern Microsoft technologies including .NET 10, .NET 9, ASP.NET Core, Minimal APIs, Clean Architecture, CQRS, SignalR, Hangfire, OpenTelemetry, and distributed backend systems using MassTransit. I help startups and enterprise clients build high-performance applications from architecture and backend APIs to modern front-end interfaces and cloud deployment pipelines. Core Expertise Backend & Cloud Development - .NET 10 / .NET 9 / ASP.NET Core - REST APIs & Minimal APIs - Clean Architecture & CQRS - SignalR real-time applications - Background processing with Hangfire - Distributed systems & event-driven architecture - OpenTelemetry observability - MassTransit messaging - Authentication & authorization systems - Multi-tenant SaaS architecture Front-End Development - React - Angular (2+ through latest versions) - TypeScript - Material UI - Responsive web applications Cloud & DevOps - Azure - Docker - Azure DevOps - GitHub Actions - Nginx - CI/CD pipeline automation Databases & Infrastructure - PostgreSQL - Redis - Elasticsearch - CosmosDB - SQL Server AI & Automation - AI Agents - AI workflow automation - Semantic Kernel - AI-assisted business applications - Process automation solutions Integrations I have extensive experience integrating third-party APIs and business platforms including: - Stripe - Twilio - Google APIs - Cloudflare - Slack - Facebook APIs - CallTrackingMetrics - Yelp - Yext Additional Expertise - SaaS platforms - CRM/ERP systems - Ecommerce applications - Healthcare platforms Browser automation - CAPTCHA solving - Advanced web scraping and data extraction systems I can work on both long-term product development and short-term high-priority projects. I focus on clean architecture, maintainable code, performance, and fast communication throughout the development process. If you need a senior engineer who can quickly understand business requirements and deliver production-ready solutions, feel free to contact me.

I am a .net expert with 20+ years of experience in different domains regarding windows applications, web development, cloud based applications, web services, architectural designs, database design. I always aim to make stable solutions with the quality that is needed to make clients satisfied with the result. Also, I have experience in team-lead and functional and technical design and analysis. The last projects, I had the position of solution architect. I speak Dutch, English (fluent) and French.

It's been 10+ years working as a Full Stack Developer React Node (MERN Developer), specializing in React.js, Node.js, and Express.js, building SaaS platforms, MVPs, AI-powered apps, and enterprise web applications. 15+ years as a .NET Developer, past and current, giving me a rare depth in enterprise architecture that most React/Node developers don't have. $90K+ earned and 47 projects delivered on Upwork as a React MERN Developer and SaaS Developer, with a 100% Job Success Score and Top Rated status. 50+ SaaS platforms shipped as a Senior React MERN Developer, including multi-tenant architecture, subscription billing, and role-based access systems. 1,178+ hours delivered across full stack builds from early-stage MVP to production SaaS platform as a Full Stack Developer React Node. 700+ enterprise clients migrated from legacy .NET systems to modern React/Node.js stacks, drawing on 15+ years of .NET depth alongside 8 years of hands-on MERN/React/Node delivery. PhD in Computer Science, 14,000+ StackOverflow reputation, and an active GitHub presence since 2014 engineering rigor behind every SaaS Developer engagement. WHERE I DELIVER As a React Developer, component architecture, dashboard builds, and responsive UI for SaaS platforms and enterprise web apps, with 500+ production launches. As a MERN Developer, REST APIs, backend architecture, MongoDB database design, and secure, scalable systems as a Full Stack Developer React Node. As a React MERN Developer end-to-end SaaS builds from data architecture to polished frontend, including a UK fintech SaaS platform (account management, compliance, CRM, and payment tooling). As a Senior React Developer, AI-powered web application productionization, including auth, backend, AWS deployment, rate limiting, and monitoring for a live product. As a SaaS Developer, multi-tenant applications, workflow automation, and third-party API/payment integrations across healthcare, fintech, and logistics domains. As a .NET Developer with 15+ years of enterprise depth legacy system modernization and .NET-to-Node/React migration for teams replatforming older applications, backed by 8 years of hands-on MERN delivery on the other side of the migration. INDUSTRY IMPACT FinTech / SaaS: Built a UK-based fintech SaaS platform covering account and investment management, loan and insurance workflows, budgeting tools, compliance and fraud detection, and secure payments, as a React MERN Developer. Healthcare: I have worked on Medi Spack Platform, Medical Audit platform and Klinck Care as a React MERN Developer. E-Commerce / CRM: I have developed ShopisLive, 100000+ orders processed / 10000+ customers managed, as a Full Stack Developer React Node. AI-Powered Applications: EZPZ, AI SaaS Comission Platform, built with ChatGPT, Claude and Gemini AI Integrated and productionized on AWS as a Senior React Developer. Enterprise / .NET Modernization: 15+ years working across .NET systems, including Soley Cleaning, Solar4Goods, Cosmicfinite, now applied to migrating legacy platforms into modern React/Node architectures. HOW I BUILD - As a React Developer: React, Next.js, TypeScript, JavaScript, Tailwind CSS, Redux, responsive design, component-driven architecture. - As a MERN Developer: MongoDB, Express, React, Node.js, REST APIs, Redis. - As a SaaS Developer: multi-tenant architecture, subscription billing, Stripe/payment integration, Docker, AWS, CI/CD, Git. - As a .NET Developer (15+ years, past and current): C#, ASP.NET Core, Entity Framework, SQL Server, the enterprise foundation behind every migration and architecture decisions I make on the MERN side.

Expert in C# | Python | ANGULAR | ASP.NET CORE/MVC | API Integration & Development ✅ #Top Rated Plus Freelancer ✅ #Full Stack Web Developer ✅ #7+ Year Rich Experience ✅ #Customized Applications ✅ #24*7 Technical Support ✅ #Desktop and Web Development Having a rich experience in Web Development, I have worked on many projects. Clients who worked with me were fully satisfied and recommended me as well. My Roles and Responsibilities include the following: ✅ Technologies using Python (Flask, FastAPI), ChatGPT Integration, AI, Machine Learning, C#, ASP.NET MVC/Core, Angular 8/9/10, ADO.NET, EF6/EF Core, SQL Server, BitBucket, GitHub, Azure Server, IIS Server. ✅ Developed and Integrated Inspection Module/Bidding Module in existing application. ✅ Escalate issues to Product Development (Tier 3) resources where necessary. ✅ Debugging applications and implementing code fixes when necessary. ✅ Work closely with the Development and Release Management practice to ensure code and design integrity of the bug fixes. ✅ Developed crystal/SSRS reports as per client requirements (table, matrix reports). ✅ Developing enhancements and new functionality for existing solutions I can develop your website from scratch, do a redesign, and modify existing functionality. My working methods are very professional and clean, giving special emphasis on the quality of work delivered to client. Whether your project is small or large or it is a start-up, we can work together and give you the best consultation on what needs to be done to achieve your goals. I look forward to the opportunity to work with you and contribute to the success of your Web & .NET Development projects. Warm Regards, Ali Ahmed #.NetCore #AspdotNetCore #AspdotNetMVC #CSharp #SQLServer #Database #ApiIntegration #APIDevelopment #AI #python #flask #fastapi

Senior Full Stack Developer and Senior .NET Developer specializing in application development, enterprise software architecture, backend engineering, and scalable cloud solutions. With years of practical experience, I build secure, high-performance web platforms using .NET, ASP.NET Core, Azure, SQL Server, and Angular, helping businesses launch reliable digital products faster. ⚙️ Backend Expertise ✔ .NET Framework, ASP.NET Core, C# ✔ Scalable REST API Development, Backend Integration ✔ Microservices, Distributed Systems ✔ Secure Authentication & Authorization using JWT, OAuth ✔ Role-Based Access Control, Identity Management ✔ Clean Architecture 🖼️ Frontend Expertise 🔸 Angular 🔸 ASP.NET MVC, ASP.NET Core MVC Razor Pages 🔸 Responsive Web Design 🔸 UI/UX Implementation 🔸 HTML5, CSS3, Bootstrap 🔸 AJAX & REST API Integration 🛢 Database Expertise 🌿Database Architecture 🌿 SQL Server Performance Tuning 🌿 MSSQL, MySQL, PostgreSQL 🌿 Azure SQL, ElasticSearch 🌿 Query Optimization and Data Modeling 🌐 Domain Expertise 🔸 E-Learning Platforms 🔸 Books Application Development and Tools. 🔸 E-Commerce Platforms 🔸 SaaS Products ☁️ Cloud Expertise 🌳 Azure: App Services, Blob Storage, Insights. 🌳 AWS services: EC2, S3, Lambda. 💼 Services I Provide 👉Custom SaaS Product Development from MVP to Production Release 👉 Enterprise Web Application Development with Secure and Scalable Architecture 👉 REST API Development, Third-Party Integrations, and Backend Modernization 👉 Modern Frontend Interfaces with Clean UX and Responsive Design 👉 Cloud Hosting, Infrastructure Optimization, and Deployment Automation 👉 Ongoing Product Maintenance, Feature Expansion, and Technical Support 🌟 Recent Integrations 🧬Stream pay/ Paymob/ Payment Gateway Integration 🧬Unifonic API Integration 🧬Third-Party API Integration Keywords Senior .NET Developer Upwork Full-Stack .NET Developer Upwork Full-Stack Developer .NET & Angular Upwork ASP.NET Core Developer Upwork ASP.NET MVC Developer Upwork C# Developer Upwork .NET Core Developer Upwork .NET Backend Developer Upwork .NET API Developer Upwork REST API Developer Upwork Microservices Developer Upwork Enterprise Application Developer Upwork SaaS Application Developer Upwork Cloud Application Developer Upwork Azure .NET Developer Upwork SQL Server Developer Upwork Database Architecture Specialist Upwork Performance Optimization Specialist Upwork Software Maintenance & Support Upwork Application Migration & Upgrade Services Upwork Third-Party Integration Specialist Upwork Core Skills .NET Core, .NET Framework, ASP.NET Core, C#, MVC, Web API, Entity Framework Core, Dapper, SQL Server, Microservices, RESTful APIs, SignalR, RabbitMQ, Azure, AWS, Angular, CI/CD Pipelines, Agile Development, Responsive Web Design, Frontend Development, Backend Development, Database Management, Scalable Architecture, Cloud Deployment.

I am a Top Rated Python and .NET Developer with 16,000+ hours on Upwork and extensive experience helping companies build reliable REST APIs, integrate AI services, and ship production-ready backend systems on AWS and Azure. If you need a Python or .NET developer who can handle AI integration (OpenAI, AWS Bedrock, Azure OpenAI, Gemini, or any LLM API), cloud automation, and REST API development without hand-holding or vague timelines, that is exactly what I deliver. What I can help you with: • Python backend services: FastAPI, Flask, REST API development • .NET and C# Web APIs using ASP.NET Core • AI integration: OpenAI, AWS Bedrock, Azure OpenAI, LLM APIs, and RAG pipelines • AWS: Lambda, S3, SQS, API Gateway, EC2, and serverless automation • Azure: Azure Functions, Azure OpenAI, cloud services, and background jobs • API integration and third-party system automation workflows • SQL Server, PostgreSQL, Redis: performance tuning and reliability • React-based admin panels when full-stack ownership is needed Clients usually hire me to: • Modernize legacy systems without breaking production • Diagnose and fix unstable APIs or backend issues • Build new backend features with clean architecture and solid validation • Add AI capabilities into existing applications in a practical, maintainable way • Improve deployment confidence, observability, and handover quality How I work: • Clear communication and fast response, so you always know where things stand • Practical planning with concrete next steps before writing a single line of code • Production-focused engineering with logging, error handling, testing, and maintainable code • Reliable delivery without unnecessary complexity If you have an existing codebase, I can quickly review the setup, identify the highest-priority issues, and propose the best path forward. If you are starting something new, I can help design and build it in a way that is clean, scalable, and easy to maintain long term. 16,000+ hours. 129 jobs. Let's build something that works.

𝐀𝐈 𝐒𝐚𝐚𝐒 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 | 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 (𝐌𝐄𝐑𝐍 / 𝐌𝐄𝐀𝐍 / .𝐍𝐄𝐓) | 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭 I’m a Senior Full Stack Engineer with 15+ years of experience building AI-powered SaaS platforms, enterprise web applications, and scalable backend systems with a strong focus on automation and integration. I help companies design and build production-grade systems that combine AI, APIs, and modern cloud architecture to streamline operations, improve workflows, and scale efficiently. My core strength lies in building reliable, maintainable, and high-performance systems where automation and integration are central to the product architecture — not an afterthought. 𝐖𝐡𝐚𝐭 𝐈 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞 𝐈𝐧 * AI SaaS platforms and intelligent automation systems * Workflow automation and integration solutions * RAG systems and LLM-powered applications (OpenAI, AI agents) * Scalable backend architecture (Node.js, .NET, Express) * Full-stack web applications (React, Next.js, Angular) * API design, integration, and system orchestration * Multi-tenant SaaS platforms and enterprise dashboards 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 * Full Stack Development (MERN / MEAN / .NET) * API Integration & System Design * Automation and Integration of Business Workflows * AI Integration (OpenAI APIs, RAG pipelines, AI agents) * PostgreSQL & MongoDB database architecture * Cloud deployments & scalable backend systems * Performance optimization & production debugging 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐞𝐥𝐢𝐯𝐞𝐫 * End-to-end SaaS product development * Scalable backend systems with clean architecture * AI-powered automation and integration pipelines * Production-ready APIs and secure systems * High-performance dashboards and admin systems * Maintainable, well-structured codebases 𝐂𝐥𝐢𝐞𝐧𝐭 𝐕𝐚𝐥𝐮𝐞 Clients typically hire me for: ✔ Turning complex workflows into scalable systems ✔ Building AI-powered automation layers ✔ Improving system performance and reliability ✔ Integrating multiple APIs into unified platforms ✔ Delivering production-ready SaaS products I specialize in building scalable AI SaaS systems with deep focus on automation and integration, ensuring businesses can streamline operations, reduce manual work, and scale efficiently through modern cloud-based architectures. If you're looking for a long-term engineering partner who can design and build AI SaaS platforms with strong emphasis on automation and integration, I’d be happy to collaborate.

I help businesses build scalable web applications, automate workflows, and develop smart AI-powered solutions that improve efficiency and drive growth. With 8+ years of experience, I specialize in full-stack development, modern frontend frameworks, backend architecture, and business automation systems. My expertise includes: ✔ Full-Stack Web Application Development ✔ .NET & Python Backend Development ✔ React.js & Angular Frontend Development ✔ Claude AI integrations and AI-powered solutions ✔ n8n workflow automation ✔ GoHighLevel (GHL) setup & automation ✔ API integrations and custom business solutions Focused on delivering clean, scalable, and high-performing solutions that solve real business problems and support long-term growth.

I’m a Senior Full-Stack .NET Developer with 10+ years of experience building enterprise web applications and distributed systems. I specialize in designing and developing solutions using .NET Core and modern JavaScript frameworks (Angular, React, Vue.js), with strong expertise in both relational and NoSQL databases (MS SQL Server, MongoDB, Firebase). My experience includes building microservices architectures, integrating complex third-party systems, and developing high-performance APIs. I’ve worked with messaging systems (Kafka, Azure Service Bus), real-time technologies (SignalR), and cloud platforms such as Microsoft Azure. I also have solid experience in enterprise development, including 4+ years working with SharePoint (2010–2016, Office 365), delivering internal portals and business process automation systems. I take ownership of solutions end-to-end — from architecture and development to deployment and optimization. I’m comfortable working in complex environments, collaborating with cross-functional teams, and driving technical decisions. Core skills: • .NET Core, ASP.NET, Web API • Angular, React, Vue.js • MS SQL Server, MongoDB • Microservices, REST, gRPC • Kafka, Azure Service Bus, Redis • SharePoint/Office 365