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**Senior .NET Developer | ASP.NET Core | React | Blazor | AI** ⭐ 16+ Years of Experience | 200+ Successfully Delivered Projects ⭐ 5+ Years (10,000+ Hours) on Upwork with Consistent Client Satisfaction ⭐ Available Across Global Time Zones ## Professional Summary I am a Senior Software Developer with 16+ years of experience building web applications, APIs, cloud solutions, and enterprise software for clients across various industries. Over the years, I have delivered more than 200 projects ranging from startup products to large business applications. I enjoy solving challenging problems, writing clean and maintainable code, and helping businesses turn their ideas into reliable software solutions. My experience covers the complete development lifecycle—from understanding requirements and designing solutions to development, deployment, and ongoing support. I follow SOLID principles, design patterns, Clean Architecture, CQRS, and microservices best practices to build scalable, maintainable, and high-performance applications. In recent years, I have also been working extensively with Generative AI, AI-powered automation, RAG applications, LLM integrations, AI agents, and modern AI development tools to help businesses improve productivity and build intelligent software solutions. --- ## Core Technical Skills ### Backend & Frameworks ✔ ASP.NET ✔ ASP.NET MVC ✔ .NET Core (.NET 3.1, .NET 8, .NET 9) ✔ ASP.NET Web API ✔ Entity Framework Core ✔ Node.js ### Frontend Technologies ✔ React.js ✔ AngularJS ✔ Blazor ✔ JavaScript ✔ TypeScript ✔ jQuery ✔ HTML5 ✔ CSS3 ### AI & Python Development ✔ Python Development ✔ Generative AI Applications ✔ OpenAI Integration ✔ LLM-Based Solutions ✔ AI Chatbots & Assistants ✔ RAG (Retrieval-Augmented Generation) Applications ✔ AI Agents & Workflow Automation ✔ Prompt Engineering ✔ Vector Databases ✔ LangChain & AI Frameworks ✔ Document Processing & Knowledge Base Systems ✔ AI-Powered Business Applications ### AI Development Tools ✔ Codex ✔ Cursor ✔ Claude Code ✔ GitHub Copilot ✔ VS Code AI Tooling ✔ Antigravity ### Automation & Integration ✔ N8N Workflow Automation ✔ API Development & Integration ✔ Third-Party Integrations ✔ Webhooks & Event-Driven Systems ✔ Business Process Automation ### Cloud Platforms ✔ Microsoft Azure ✔ AWS ✔ Google Cloud Platform (GCP) ### Databases ✔ SQL Server ✔ PostgreSQL ✔ MySQL ✔ Oracle ✔ MongoDB ### Architecture & Development Practices ✔ SOLID Principles ✔ Design Patterns ✔ Clean Architecture ✔ Domain-Driven Design (DDD) ✔ Microservices Architecture ✔ CQRS (Command Query Responsibility Segregation) ✔ Event-Driven Architecture ✔ GraphQL APIs ✔ RESTful APIs ✔ Dependency Injection ✔ Repository Pattern ✔ Unit of Work Pattern ### Source Control & DevOps ✔ GitHub ✔ GitLab ✔ Bitbucket ✔ TFS ✔ SVN ✔ GitHub Actions ✔ GitLab CI/CD ✔ Azure DevOps ✔ Jenkins ### Additional Expertise ✔ Full-Stack Web Development ✔ SaaS Application Development ✔ Enterprise Application Development ✔ Legacy System Modernization ✔ Performance Optimization ✔ Application Maintenance & Support ### What I Bring to Projects ✔ Strong Full-Stack Development Experience ✔ Clean, Maintainable, and Scalable Code ✔ AI-Powered Solution Development ✔ Focus on Best Practices and Long-Term Maintainability ✔ Reliable Communication and On-Time Delivery ✔ Problem Solving for Complex Requirements ✔ Experience Working with Global Teams and Clients ✔ Long-Term Support and Maintenance

Hi, I'm Hardik, 𝐚 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐰𝐢𝐭𝐡 10+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐬𝐞𝐜𝐮𝐫𝐞, 𝐚𝐧𝐝 𝐡𝐢𝐠𝐡-𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬. 𝐈 𝐬𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞 𝐢𝐧: ✔ Custom Web Application Development ✔ SaaS Platform Development ✔ REST API & Third-Party Integrations ✔ Backend Architecture & Database Design ✔ Frontend Development with Modern JS Frameworks 🛠 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: ✔React.js, Vue.js, JavaScript, HTML5, CSS3, Tailwind CSS 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: ✔Node.js, Express.js, PHP, Laravel 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞: ✔MySQL, MongoDB 𝐎𝐭𝐡𝐞𝐫 𝐒𝐤𝐢𝐥𝐥𝐬: ✔REST APIs, Webhooks, Payment Integration (Stripe, Razorpay), Authentication Systems, Cloud Deployment 💡 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐞𝐥𝐢𝐯𝐞𝐫 - Clean & scalable architecture - Fast loading web applications - Secure authentication systems - SEO-friendly structure - Ongoing maintenance & support If you're looking for a reliable full stack developer who understands both business logic and technical implementation. let's connect now. Regards, Hardik

Expert Game Developer (Unity, Unreal & Roblox) with 10 years of experience building mobile games, multiplayer systems and AR/VR applications. I specialize in developing high-quality, scalable, and performance-optimized Games from concept to release. My achievements say everything: 🏆 50M+ Downloads – Addictive Games (Android & iOS) 🏆 100K+ Downloads – Ludo City (Android & iOS) 🏆 Successfully shipped multiple multiplayer games, including Ludo City, Parchisi City, and Addictive Games I help clients transform ideas into polished, scalable, and high-performance Unity applications. Whether you need a complete game, a new feature, multiplayer integration, performance optimization, bug fixing, or project rescue, I can deliver reliable solutions with clean and maintainable code. My expertise includes: • Unity 3D & C# • Unreal Engine & C++ • Roblox & Lua • Mobile Game Development (Android & iOS) • Multiplayer Systems (Photon, Fusion, Networking) • AR/VR Development • UI/UX Implementation • Performance Optimization & Memory Management • Game Architecture & Design Patterns • Backend/API Integration • Live Ops & Production Support What you can expect when working with me: ✓ Clear communication and regular updates ✓ High-quality, maintainable code ✓ Strong focus on performance and scalability ✓ Reliable delivery and attention to detail ✓ Ability to work independently or with existing teams Over the years, I have contributed to multiple commercial projects, collaborating with designers, artists, producers, and stakeholders to deliver successful products on time. If you're looking for an experienced Unity developer who can quickly understand requirements, solve technical challenges, and help bring your project to completion, I'd be happy to discuss your project.

I build and rescue complex SaaS products and business applications that need more than a basic CRUD developer. I specialize in Node.js, React/Next.js, Java/Spring Boot, PostgreSQL, AWS, Docker/Kubernetes, real-time systems, and AI integrations. With $50K+ earned on Upwork, 18 completed jobs, 100% Job Success, and Top Rated Plus status, I work with startups and businesses to take products from architecture and development through deployment and production. What I can help you with 🚀 SaaS & Product Development Build an MVP from scratch Extend an existing SaaS product Design scalable backend architecture Build APIs and complex business workflows Integrate third-party services Fix and modernize existing applications 🤖 AI & Automation AI-powered SaaS LLM integrations RAG systems AI agents and workflows OpenAI / Claude integrations AI copilots and business automation ⚡ Real-Time & Communication Systems I've worked on systems involving: SIP / VoIP FusionPBX / FreeSWITCH drachtio SIP registration Mobile push wake-up Real-time communication WebSockets Event-driven architectures 🔐 Complex Business Platforms I've also worked on platforms involving: Remote Online Notarization Identity verification Video sessions E-signatures and e-seals PDF/document workflows Payment processing Audit trails Secure user workflows Core technology Backend: Node.js, Java, Spring Boot Frontend: React, Next.js, TypeScript Database: PostgreSQL, MySQL, MongoDB, Redis Cloud: AWS, DigitalOcean Infrastructure: Docker, Kubernetes, CI/CD AI: OpenAI, Claude, LangChain, LangGraph, RAG Why clients hire me I’m particularly useful when a project has technical complexity, integrations, scaling requirements, or an existing codebase that needs to be fixed. I don't just write individual features—I can understand the complete system, make architectural decisions, build the required functionality, and take it into production. If you have an existing product that needs to be built, fixed, scaled, or taken to the next stage, let's talk.

Hi, I am having more than 20 years of IT Industry experience developing Applications in FoxPro ( Starting from FOXPRO 2.6, Visual FoxPro 6, Visual FoxPro 9) with SQL Server as backend database . I have an experience of - Migrating FOXPRO application database from foxpro DB to MYSQL/MSSQL/PostgreSQL/Mongo Database - Migrating Foxpro application to communicate with SQL database instead of Foxpro tables - Creating Technical Specification document. - Converting Foxpro application to WPF application using C#

I have helped startups and enterprises build new .NET applications, define solution architecture, modernize legacy systems, resolve complex production issues, optimize application and database performance, simplify backend complexities, integrate third-party systems, and become a dependable long-term member of their development teams over 20 years of my experience. If you're looking for someone who can step into an existing .NET application, quickly understand the codebase, identify the real problem, and start delivering without constant guidance, I'd be happy to help. Over the years, I've worked on challenges that go far beyond code writing, code—performance tuning, troubleshooting production issues, designing scalable backend architectures, optimizing SQL queries, refactoring legacy applications, integrating external APIs, resolving concurrency and data consistency issues, improving application stability, and implementing new features without disrupting existing business workflows. I am hands-on developer and enjoy solving the technical challenges. My Core Areas of Expertise:- ------------------------------------ ✔ ASP.NET Core, .NET Framework, .NET 6/7/8, C# ✔ REST APIs, Web APIs, Microservices & Third-party Integrations ✔ Full Stack Development using ASP.NET Core, Angular, Blazor & MVC ✔ Legacy .NET Modernization (ASP.NET, Windows Forms, WPF) ✔ Enterprise & SaaS Application Development ✔ SQL Server, MySQL, Entity Framework Core & NHibernate ✔ Performance Optimization, Database Tuning & Application Troubleshooting ✔ Cloud Deployment with Azure, AWS, Git, Jenkins & CI/CD Pipelines ✔ ABP Framework & ASP.NET Zero I've successfully delivered projects for clients across the USA, Australia, Canada, France, Russia, and India. My recent Upwork engagement lasted over two years with more than $52,000 billed, and I've maintained 5-star ratings across every completed Upwork project. If you're looking for a senior .NET consultant who can quickly become productive, take ownership of your application, and deliver reliable results, I'd be happy to discuss your project.