I help startups and businesses build scalable SaaS development, AI implementation, and modern web products using React, Next.js, Node.js, AI, Python, and cloud technologies. React Developer | Next.js Developer | Frontend Engineer | UI/UX Implementation Specialist | SaaS developer & Web Application Expert | Full stack developer **Key Tech –** React.js Next.js developer Node.js developer MERN developer Python FastAPI SAAS developer SAAS expert react js React Native developer Next.js TypeScript JavaScript (ES6+) Redux Toolkit / Zustand Tailwind CSS Material UI / Ant Design REST APIs / GraphQL HTML5 / CSS3 Firebase / Supabase I specialize in building modern, responsive, and high-performance web applications using React js, Next.js, and TypeScript. From SaaS platforms and admin dashboards to customer portals and AI-powered applications, I develop scalable frontend solutions focused on user experience, performance, and maintainability. Over the past few years, I've worked on complex applications across SaaS, fintech, healthcare, logistics, eCommerce, and AI platforms. Whether it's developing pixel-perfect interfaces, integrating APIs, optimizing application performance, or building reusable component libraries, I focus on delivering clean, production-ready code. I can help you with: • React.js & Next.js application development • React Native mobile apps • Responsive UI/UX implementation from Figma, Adobe XD, or Sketch • Frontend architecture and component library development • REST API & GraphQL integration • Dashboard, CRM, ERP, and SaaS platform development • Performance optimization and Core Web Vitals improvements • Authentication, role-based access control, and secure frontend implementation • Real-time applications using WebSockets and Firebase • AI-powered frontend applications with OpenAI, Claude, and custom LLM integrations **Tech Stack:** React.js • Next.js • TypeScript • JavaScript • Redux • Tailwind CSS • Material UI • GraphQL • REST APIs • Firebase • Supabase • Node.js • MongoDB • PostgreSQL • AWS • Vercel, React Native I focus on building fast, scalable, and user-friendly applications that provide excellent user experiences while maintaining clean architecture and long-term maintainability. React Developer • Next.js Developer • Frontend Engineer • AI SaaS Application Development • Dashboard Development • UI/UX Development • TypeScript Developer • GraphQL Integration • API Integration • Web Application Development • Performance Optimization • Responsive Web Design, React Native developer • MERN, React js SaaS Developer • SaaS MVP Development • Multi-Tenant SaaS • B2B SaaS Platforms • AI SaaS Applications • React • Next.js • Python • FastAPI • Node.js • Supabase • PostgreSQL • Stripe • Subscription Billing • SaaS Dashboards • API Integrations • SaaS Automation • AI SAAS• OpenAI • Claude AI • Workflow Automation • Startup MVPs • Cloud Applications • SAAS marketplace Full Stack Developer Senior Full Stack Developer Full Stack Engineer Full Stack Web Developer Full Stack Software Engineer JavaScript Full Stack Developer TypeScript Full Stack Developer

I am a Microsoft Certified Full Stack Developer with over 14 years of experience building scalable AI-powered enterprise SaaS platforms, VoIP systems, POS solutions, Internal Dashboards, E-commerce, and MVP development. I specialize in solving complex business problems using modern full-stack technologies and real-world AI integrations and AI Coding. 𝐊𝐞𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤: .NET Core, ASP.NET, C#, Entity Framework, Blazor, Node.js, Python (Fast API), React, Angular, Next.js, TypeScript. 𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: OpenAI, LLMs, AI Agents, Voice AI, Chatbot, RAG Systems, Workflow Automation. 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞: Multi-tenant SaaS, Microservices, REST APIs, Cloud (AWS/Azure), Third-party APIs like- Twilio, Stripe, etc. 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬: Healthcare IoT, Fintech, E-commerce, Telecommunication, HR, and others. I focus on clean architecture, long-term maintainability, and transparent communication. With a 100% Job Success Score and 16,000+ hours on Upwork, I deliver secure, high-performance solutions that drive product growth. Let’s discuss how I can help bring your project to life. Best regards, Harsh K.

I excel in diverse work environments, having successfully crafted bespoke systems from the ground up and adeptly navigated open source applications and frameworks. With a wealth of experience, I specialize in supporting, extending, and modernizing custom legacy systems. My commitment extends to maintaining the highest coding standards while demonstrating flexibility to meet deadlines and adhere to budgets, ensuring a harmonious blend for your project's success. Whether orchestrating the planning and architecture of your system, constructing specific modules as needed, or troubleshooting and enhancing existing infrastructure, I bring a versatile skill set to the table. Language : Python, Oracle PL/SQL, SQL Data engineer Scripting and Automation Web scrapping Platform Automation Alexa Skill Development Google Assistant I am enthusiastic about exploring innovative project ideas and welcome the opportunity to discuss your unique requirements. Feel free to reach out with any questions or to share your exciting new projects. dhrumilmakadia.com

We help startups and businesses build AI-powered SaaS platforms, ERP systems, CRM software, and custom web applications based on their business needs. We have worked on AI chatbots, automation systems, dashboards, workflow platforms, analytics systems, logistics software, accounting applications, and custom business tools for different industries. We focus on building simple, scalable, and easy-to-use systems that help businesses save time, automate work, and manage operations better. Recently, we worked on AI recruitment platforms, AI content generation systems, ERP & CRM software, logistics automation applications, and custom SaaS products with dashboards, reporting, APIs, and workflow automation. What We Can Help You With AI SaaS Platforms ERP, CRM & HRMS Development Custom Business Applications AI Chatbots & AI Integrations Workflow Automation Dashboards & Reporting Systems AI Content & Analytics Platforms Logistics & Tracking Applications API & Third-Party Integrations Cloud-Based Applications Tech Stack React, Angular, JavaScript .NET, Node.js, PHP, Python MySQL, PostgreSQL, MS SQL Laravel, ASP.NET, CodeIgniter AWS, REST APIs, GraphQL OpenAI, Claude API, LangChain Why Clients Work With Us Strong experience in SaaS, ERP, CRM & AI systems Simple and business-focused solutions Clear communication and smooth delivery Fast response and long-term support If you are planning to build an AI platform, SaaS product, ERP system, automation tool, or any custom application, we would be happy to discuss your project. Thanks

🚀 Have a website, web app, mobile app, SaaS platform, or marketplace idea in mind? I help startups and businesses turn ideas into scalable Web & Mobile apps used by thousands of users. 💼 12+ years in full stack development building fast, high-performance, revenue-driven products. 💡 What I specialize in: ✔ SaaS Platforms & MVP Development ✔ Marketplace & Booking Apps (Uber, Airbnb style) ✔ Mobile Apps (iOS & Android) ✔ AI Integrations (OpenAI, automation, smart workflows) ✔ Custom Dashboards & Admin Panels ⚙️ Tech Stack: React, Next.js, Node.js, PHP, Python, React Native, Flutter, MySQL, MongoDB, AWS, REST/GraphQL APIs, TypeScript, NestJS, Docker, Kubernetes, Serverless, WebSockets, Redis, Firebase, Vercel, AI/ML APIs 🔥 What you get: ✔ Fast execution & clean scalable architecture ✔ Smooth, modern UI/UX ✔ Clear communication & quick updates ✔ Long-term reliable development partner 📈 Proven Experience: Built SaaS products, marketplaces, AI apps, and booking systems with real users and business impact. 🤝 Looking for someone who understands product + scalability? Send an invite and let’s build something powerful.

⭐️ ⭐️⭐️ National MSME Award Winner from PM Mr Narendra Modi - 2022⭐️⭐️⭐️ 🚀⭐️ Top Rated Freelancer on Upwork from ⭐️Day No 1 ⭐️🚀 ⭐️ ⭐️⭐️ Only Profile in Upwork with more than 💲10M earnings ⭐️⭐️⭐️ . 💯 4 hours of response time with 100% Client Dedication! ✅ Unlimited revision on design to ensure you get exactly what you're looking for. 💻 Ex IBM, Microsoft, Dell Coder. ⌚ Over 24000+ hours worked so far. 🚀 6000 jobs completed with + 5⭐️⭐️⭐️⭐️⭐️ Ratings In my profile, I actually have done over half-dozen comes whose valuations are over $50000 and twenty-five comes over $10000 and 100+ comes that is over $5000.I have been engaged in elance (Parent Company of Upwork ) for the last eight years thus supported many startups to grow a million greenbacks company that I'm pleased with. I'm specialized in several Website Development & Mobile Apps Development skills. Some of my expertise follows, ⭐️ Web Application Development ✅ WordPress Website Development ✅ E-Commerce website development ✅ Magento Website Development ✅ Magento Enterprise ✅ Woo Commerce Website Development ✅ Shopify Website Development ✅ Shopify Plus Development ✅ MEAN Stack Development ✅ Angular Application Development ✅ Node JS Development ✅ MERN Stack Development ✅ React JS Development ✅ Laravel Application Development ⭐️ Mobile Application Development ✅ Hybrid Application Development ✅ React Native Development ✅ Flutter ✅ Native Application Development ✅ Swift ✅ Objective C ✅ Java ✅ Kotlin

I’m a Senior Full-Stack Developer & Software Architect with 12+ years of experience building scalable, high-performance applications for USA-based enterprise clients and multibillion-dollar brands. I specialize in designing and delivering end-to-end solutions — from architecture to deployment — with a strong focus on clean code, scalability, and long-term maintainability. In the last 2+ years, I’ve also been working extensively with AI-powered solutions, integrating LLMs (Claude, OpenAI) into real-world applications such as chatbots, automation tools, and intelligent data processing systems. Backend Expertise C#, .NET Core, ASP.NET MVC, Web API, Node.js, Python Building secure, scalable, and high-performance APIs and microservices Frontend Development React.js, Angular, Blazor, Vue.js, TypeScript Modern, responsive, and user-friendly UI development AI & Automation (Latest Focus) Claude API & OpenAI integrations RAG (Retrieval-Augmented Generation) systems AI chatbots & workflow automation Prompt engineering & document processing AI-assisted development using Cursor Cloud & DevOps Azure (App Services, Functions, API Management) AWS (Lambda, S3, SQS, SNS, DynamoDB) Docker, CI/CD pipelines, Azure DevOps Database Expertise MS SQL Server, PostgreSQL, MySQL, MongoDB, Redis Architecture & Best Practices Microservices, DDD, SOLID principles, Clean Architecture

🚀 Senior AI / ML Engineer & AI Agent Developer I help businesses build production-ready AI systems — including Voice Agent,AI agents,Multi-Agent, chatbots, RAG pipelines, computer vision, and automation — that actually work in real-world environments. With 10+ years of experience, I’ve delivered AI solutions across Healthcare, Finance, Logistics, Automation, and Enterprise workflows. 🔹 What I do best: ✔ AI Agents,Voice Agents & LLM applications (ChatGPT, Claude, LLaMA) ✔ RAG systems (Vector DBs, embeddings, document intelligence) ✔ Custom chatbots & voice bots (Web, WhatsApp, Slack, SMS) ✔ AI automation (n8n, RPA, MCP-based workflows) ✔ Computer Vision & OCR (documents, images, video) 🔹 Core Technologies: - LLMs & Frameworks: GPT-4, Claude, LLaMA 2, LangChain - Vector DBs: Pinecone, PGVector - AI Protocols: Model Context Protocol (MCP) - Chatbot Platforms: Rasa, Dialogflow, Bot Framework, Twilio - Computer Vision: YOLO, OpenCV, OCR, Stable Diffusion,Cvat 🔹 Past Work Includes: • WhatsApp / SMS / Telegram AI chatbots • Document & image processing pipelines • Voice bots & live-agent integrations • Automation-driven enterprise AI systems 🔹 Tech Stack: Backend: Python, FastAPI, Flask, Django, Node.js Frontend: React, Vue, Streamlit Cloud & DevOps: AWS, GCP, Azure, Docker, Kubernetes 💡 Why clients work with me: ✔ Production-ready, scalable AI ✔ Clean architecture & fast delivery ✔ Clear communication ✔ Enterprise-grade security mindset 📩 Message me to discuss your AI or LLM project — I can start immediately.

Senior Full Stack Engineer with 6+ years of production experience building SaaS platforms, web apps, and APIs across the .NET / Angular / React / Azure stack. Top Rated on Upwork with a 100% Job Success Score across 28+ contracts. I've also been expanding into Python (FastAPI / Flask) and applied AI/ML — adding LLM features, RAG, and data pipelines to existing products. It's important to me to build long-term relationships with clients, so I'm primarily looking for long-term projects. My skills include: ✔️ Back-end: .NET 8 / C#, ASP.NET Core MVC/MVVM, Web API, SignalR, Razor, WPF, LINQ ✔️ Front-end: Angular, React, TypeScript, JavaScript, jQuery, HTML5, CSS, Bootstrap, Tailwind ✔️ Python: FastAPI, Flask, Pandas, NumPy, scikit-learn ✔️ AI / ML: OpenAI API, LangChain, LLM integration, RAG basics, prompt engineering ✔️ Cloud: Microsoft Azure — App Service, Azure Functions, Azure SQL, Cosmos DB, Azure DevOps ✔️ ORM: Entity Framework Core, Dapper ✔️ Database: SQL Server, MongoDB, PostgreSQL, MySQL, Redis ✔️ Architecture: REST API design, microservices, real-time (SignalR / WebSockets), auth (OAuth / JWT), payment integration (Stripe) ✔️ Tooling: Visual Studio, VS Code, Git, Azure DevOps, Docker ✔️ Process: Agile, Scrum, Kanban Expertise: ✔️ Web Development — REST Web API, ASP.NET Core, Angular, React ✔️ Cloud & Backend — Azure App Service, Web Servicer, Functions, SQL, AKS, Entra ID ✔️ Python + AI Add-ons — Flask / FastAPI services, OpenAI / LangChain integration, light data pipelines Send a message with your goal in two sentences, or book a consultation and we'll scope it together.

🏆 TOP RATED PLUS FULL-STACK & ECOMMERCE DEVELOPER 🌟 Reliable Delivery & Detail-Oriented Development 🌟 Scalable, Secure & Production-Ready Solutions I help startups, SaaS companies, and e-commerce businesses build scalable web platforms, AI-powered applications, and high-performing online stores using Next.js, MERN, Laravel, Shopify, and WordPress. With 12+ years of experience and 120+ successful projects delivered, I specialize in building reliable systems that are optimized for performance, scalability, and long-term growth. I’m particularly strong at solving complex technical challenges, including platform compatibility issues, performance bottlenecks, API integrations, and production-level debugging across modern web and e-commerce platforms. Whether you need: - AI-powered SaaS development - Custom web applications - Shopify & Shopify Plus development - MERN / Next.js applications - Laravel backend systems - Headless eCommerce solutions - API integrations & automation - Performance optimization & bug fixing I can help you build a fast, scalable, and future-ready platform. 🚀 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 & 𝐒𝐚𝐚𝐒 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • AI-powered web applications • SaaS platforms & multi-tenant systems • Custom dashboards & admin panels • REST & GraphQL APIs • Real-time applications • Microservices architecture • High-performance SPA / PWA applications 🛒 𝐞-𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • Shopify & Shopify Plus development • Magento 2 development • WooCommerce/WordPress stores • Headless e-Commerce architectures • Custom Shopify apps & integrations • Payment gateway integrations • Store optimization & debugging • ERP/CRM integrations 🤖 𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 • OpenAI/GPT integrations • AI chatbots & assistants • Intelligent automation workflows • RAG pipelines & vector search • Recommendation systems 💻 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 Frontend React.js | Next.js | Vue.js | Nuxt.js | TypeScript | TailwindCSS Backend Node.js | Express.js | Laravel | PHP | Python Database MongoDB | MySQL | PostgreSQL | Redis Cloud & DevOps AWS | Docker | EC2 | Lambda | S3 | RDS AI & Search OpenAI | HuggingFace | Pinecone | OpenSearch 💡 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞 - Strong problem-solving & debugging expertise - Tested, detail-oriented implementations - Reliable communication & on-time delivery - Clean, scalable, maintainable code - Deep experience in e-Commerce & SaaS systems - Long-term support mindset 𝐑𝐞𝐜𝐞𝐧𝐭 𝐖𝐨𝐫𝐤 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬 • Built scalable SaaS platforms using Next.js & MERN stack • Developed high-converting Shopify & headless e-Commerce systems • Integrated AI-powered workflows and chatbot systems • Optimized large-scale applications for speed and scalability • Fixed complex iOS-specific compatibility issues on Shopify stores • Delivered thoroughly tested solutions with strong attention to detail I focus on building platforms that are stable, scalable, and engineered for real business growth not just quick prototypes. 📩 If you’re looking for a dependable full-stack developer who can solve challenging technical problems and deliver high-quality solutions, let’s discuss your project.