Hi, I’m Kuldeep, a Full Stack JavaScript Developer with 7+ years of experience building modern web apps, APIs, and SaaS dashboards using React, Node.js, and PHP (Laravel). I specialise in developing scalable front-end architectures and backend APIs that are lightweight, secure, and easy to maintain. My focus is always on performance, clarity in code, and reliable delivery. Core Expertise: Frontend: React.js, Next.js, Redux, TailwindCSS, Bootstrap Backend: Node.js, Express, PHP (Laravel), REST APIs Database: MySQL, MongoDB, PostgreSQL DevOps & Tools: AWS, Docker, GitHub Actions, CI/CD Pipelines Integrations: Stripe, Twilio, Google Maps, Mailgun, and third-party CRMs Recent Highlights: Developed dynamic React dashboards and Node.js APIs for multiple SaaS products. Migrated PHP-based systems to a modern React/Node architecture. Built custom admin panels with role-based access and API data visualisation. With 100% Job Success, Top Rated Plus badge, and long-term client collaborations, I take pride in delivering clean, production-ready solutions — not just code that works. Let’s connect to discuss how I can help you modernise or extend your platform.

Top-rated Full-Stack Developer with 12+ years delivering secure, scalable AI solutions that produce measurable business outcomes for global clients. What clients achieved with my work Reduced login friction and support costs by up to 80% after SSO rollouts (SAML, OAuth2, OIDC), improving user adoption and lowering helpdesk tickets. Cut user onboarding time from days to minutes via centralized identity flows and automated provisioning. Increased team productivity up to 40% with custom Office and Google Workspace add-ins that automate repetitive work and integrate third-party systems. Strengthened security and compliance (SOC2, ISO, GDPR) by implementing hardened IAM, PKI, and cryptographic document signing. Scaled multi-tenant SaaS to thousands of organizations with sub-second auth latency and 99.9% uptime. Accelerated go-to-market and recurring revenue growth by delivering modular auth and API platforms. Selected results & experience 100+ SSO integrations across Okta, Auth0, Azure AD/Entra ID, Google Workspace, AWS Cognito, Ping Identity, ADFS, Salesforce. Architected a multi-tenant Identity Broker (sso.id) enabling customers to connect multiple identity providers in minutes, boosting partner integrations and conversions. Built 15+ Office & Google Workspace add-ins (Word, Excel, Outlook, PowerPoint, Gmail, Sheets, Docs), saving teams hundreds of person-hours per month. Developed 20+ SaaS platforms from MVP to enterprise scale with AI automation and APIs (YouTube, AWS, Firebase, Microsoft Graph), improving engagement and monetization. Implemented PKI, PDF signing, and blockchain anchoring to reduce fraud risk and streamline audits. Technical stack Protocols: SAML, OAuth2, OpenID Connect, SCIM, JWT Platforms: Okta, Auth0, Azure AD/Entra ID, Google Workspace, AWS Cognito, Ping Identity, ADFS, Salesforce Frontend: React, Next.js, Vue, Angular, TypeScript Backend: .NET 8 / C#, Node.js, Python, PHP (Laravel, Django) Databases: MySQL, Oracle, MongoDB Specialized: PKI, cryptography, PDF signing, blockchain-secured documents Why hire me ROI-focused: $1.2M+ earned across 200+ projects with measurable improvements in security, productivity, and time-to-market. Business-first engineering: I reduce operational costs, accelerate onboarding, and unlock new revenue channels. Long-term partner: responsive, reliable, and focused on evolving systems as your business grows. Tell me about your auth, add-in, or SaaS challenge and I’ll outline how we can reduce risk, save time, and increase adoption.

I'm Deep Patel, a skilled Full-Stack Developer with the expertise of 6+ years of experience in ASP.NET, Azure, Node.js, React, Angular, SQL, MongoDB, CI/CD, DevOps, AI integration, Payment(Stripe) Integration, Docker, GitHub Workflow, JIRA, Architect Design, and more. I build scalable, high-performance applications tailored to your business needs. 🏆 Top Rated Full-stack Developer ✅ Fluent in English ✅ Swift response and communications ✅ Asp.net developer, 100% job success rate, and 5-star feedback only 👉 Skills: Over the years, I have worked with customers of various sizes and industries, and I have provided superb results, using the following: - Asp.net Core, Asp.net MVC/WebAPI, Blazor, C#, Vb.net, Entity Framework, .Net Framework, Linq - JavaScript, jQuery, Vue.js, Angular, React.js, Node.js - Solution Architecting, Azure Cloud and web technologies like .Net Core, REST API. - Microsoft Azure, Amazon Web Services, SOLID, Docker, Kubernetes - MSSQL, MySQL, MongoDB, PostgreSQL, Redis - Third-Party Tool Integration such as ChatGPT, Payment Gateways, Twilio SendGrid, Mailgun - SQL Script Optimization, Store procedure, Indexes, Triggers - Azure Repos, TFS, GitHub, GitLab, Bitbucket, JIRA, Trello, CI/CD Automated Deployment 👉 Clients: My time zone is GMT+5:30 🌍, but I have successfully worked with clients from all over the world. So, the time zones are never a problem for me. 👉 Why Hire Me: - Attention to detail, effective communication & collaboration. - Code quality (maintainability, simplicity). - Deliver quality work on time & on budget. - Honesty and transparency with my clients. - In-depth study of client's and user's needs to develop sustainable solutions to meet your business goals. What My Clients Say 💬 ____________________________________________________________________________ "Deep is an excellent developer who consistently goes above and beyond to ensure the success of the project. He is always available to assist and adds extra effort to deliver high-quality results. I will definitely consider him for future projects." "Tremendous patience, tenacity and capability to push this project through and resolve the problem. Congratulations Deep!" ____________________________________________________________________________ Don't just wait, 𝗚𝗘𝗧 𝗜𝗡 𝗧𝗢𝗨𝗖𝗛. I'll discuss your project in detail and provide you with the best recommendations and "quotes" for your project. Looking forward to working with you. Best Regards, Deep Patel

Welcome! I'm a seasoned Full-Stack Developer with over 10 years of experience delivering cutting-edge solutions in Umbraco, .NET Core, Blazor, MAUI, React, and C#. My passion lies in crafting high-performance, scalable web applications that drive business success. I thrive in dynamic, fast-paced environments, leveraging best practices to deliver innovative, reliable, and user-focused solutions on time and within budget. Why Choose Me? • Proven Expertise: Successfully delivered projects for clients across diverse industries, consistently exceeding expectations. • Client-Centric Approach: I prioritize clear communication, understanding your unique goals, and tailoring solutions to meet them. • Continuous Learning: I stay ahead of industry trends, ensuring you get modern, future-proof solutions. • End-to-End Development: From concept to deployment, I handle everything—backend, frontend, and integrations—with precision. My Core Expertise =============== Umbraco Development • Custom website development • Theme creation & customization • Plugin development • Seamless Umbraco upgrades to the latest versions Front-End Development • HTML, CSS, JavaScript • React.js, Angular.js, TypeScript • Responsive, intuitive, and visually stunning interfaces Back-End Development • ASP.NET Web API, MVC, .NET Core • C#, Entity Framework, ADO.NET • SQL Databases, REST APIs • Scalable, secure, and high-performance backend systems Mobile & Cross-Platform • Blazor and MAUI for modern, cross-platform applications • Seamless integration with web and mobile ecosystems My Commitment I’m dedicated to delivering high-quality code that aligns with your vision, meets project deadlines, and stays within budget. Whether you need a robust Umbraco website, a dynamic .NET application, or a cross-platform solution with MAUI, I’m here to make it happen. Ready to elevate your project? Drop me a line, and let’s build something extraordinary together!

Most SaaS companies are bleeding $5k–$50k/month on OpenAI/Claude APIs - and their legacy .NET code is blocking real AI adoption. I fix both. I architect hybrid LLM routers - where Claude Opus orchestrates high-level strategy, while local Qwen models (Ollama) handle 80% of inference execution. Result: 40–70% reduction in AI/cloud costs - proven in production at HiveGPT and Social27 (Fortune 500 event platforms). This isn't theory. It's deployed. It's saving real money. And I can do it for you - without rebuilding your entire stack. Most AI projects fail not because the technology doesn't work - but because the costs spiral before ROI kicks in. I have built and deployed production AI systems for Fortune-class clients (Social27, HiveGPT). The difference between a money-pit AI project and a profitable one is intelligent architecture - not just better prompts. What I do: I architect hybrid LLM systems where 80% of inference runs on local models (Ollama + Qwen) and only complex reasoning hits cloud APIs (Claude/OpenAI). The result? 40-70% reduction in AI spend - without sacrificing output quality. Why This Matters to You ----- If you are a SaaS founder: Your OpenAI bill is growing 20% month-over-month. My hybrid router cuts costs immediately. If you are a CTO: Your team is spending 60% of time on AI plumbing. I handle the infrastructure - you focus on product. If you are an agency: You are referring AI projects out and losing margin. I become your invisible AI delivery arm. What I Deliver ----- Hybrid LLM Architecture: Claude Opus as orchestrator + Qwen local sub-agents. Prompt caching reduces input costs by ~90%. Production-ready. .NET Core + Next.js Enterprise Systems: 18+ years building scalable SaaS platforms. Not just code - architecture that lasts. RAG Pipelines & Vector Search: pgVector, Azure AI Search, custom document ingestion - built for real-world enterprise data. Legacy Modernization: Take your ASP.NET monolith to .NET Core + AI-native in months, not years. Fractional CTO: Technical leadership for SaaS teams who need strategic direction without full-time cost. Proof - Not Promises ----- Social27 (Seattle, USA) Built an AI Online Event and Seminar - ChatGPT-powered live event intelligence for Fortune 500. Zero-downtime deployment at global scale with 50K+ concurrent users. HiveGPT (USA) Delivered a multi-agent B2B marketing automation platform. Achieved ~90% input cost reduction via prompt caching with fully autonomous campaign generation. Clearly Inventory (USA) Architected a multi-tenant SaaS inventory platform serving 100+ business accounts. 8+ years of continuous delivery with a fully remote team. Hospital OS Developed a HIPAA-compliant EMR/EHR with AI intelligence. Production healthcare system - built to meet strict compliance standards. My Technology Stack ----- AI / LLM: Claude API, OpenAI, Gemini, Ollama (Qwen 2.5/3/3.5), Mistral, Microsoft Semantic Kernel, RAG Pipelines, pgVector, Multi-Agent Orchestration, Prompt Engineering, Azure OpenAI. Backend: .NET Core 8/10, ASP.NET MVC, C#, Blazor, SignalR, Entity Framework, REST/GraphQL APIs, Microservices, Event-Driven Architecture. Frontend: Next.js 15, Angular 2-20, React, TypeScript, Vue.js, React Native, MAUI, Blazor. Cloud / DevOps: Azure (AKS, Functions, App Service, SQL, Synapse, DevOps, Blob), AWS EC2, Docker, Kubernetes, Terraform, CI/CD. Data: SQL Server, PostgreSQL, MongoDB, Redis, ElasticSearch, Azure Synapse, Power BI. Who I Work With ----- SaaS companies adding AI to existing products without rebuilding from scratch. Enterprises modernizing legacy .NET systems for the AI era. Agencies needing a white-label development partner for complex .NET/AI projects. Startups needing Fractional CTO leadership to guide technical strategy. The Bottom Line ----- I have been building enterprise systems for US clients remotely for 18+ years. I have seen the hype cycles. I know what works and what does not. AI is not magic. It is infrastructure. And infrastructure needs to be cost-effective, scalable, and maintainable. If you are spending more than $5,000/month on LLM APIs, I can show you how to cut that in half — without losing capability. Let's Talk Message me with: ----- Your current tech stack What you are trying to build or modernize Your rough LLM or cloud monthly spend I will reply with a high-level architecture assessment - free, with no obligation. Thanks

I’m a skilled Full Stack Developer with over 4 years of hands-on experience in building modern, interactive, and user-centric web, backend, and mobile applications. My expertise spans both frontend and backend development, with a strong focus on clean design, maintainable code, and scalable architecture. Frontend Expertise: Proficient in HTML, CSS3, JavaScript, React.js, Next.js, and TypeScript Skilled in UI frameworks like Ant Design (AntD), Material-UI (MUI), and Tailwind CSS Experienced in modern state management using Redux, Redux Toolkit, MobX State Tree (MST), and React Query Backend & Full-Stack Development: Strong expertise in ASP.NET Core, ASP.NET API, ASP.NET MVC 5 for developing robust, secure, and scalable server-side applications Backend experience with Next.js (API Routes) and MongoDB Developed full-stack applications with server-side rendering, RESTful APIs, and database integration Proficient in Git version control and Agile development practices Mobile Development: Built Android applications using React Native, focusing on smooth performance and native-like UI/UX I’m passionate about delivering high-quality solutions with a strong eye for detail in both design and functionality. Whether you're launching a new product or enhancing an existing one, I bring a collaborative, reliable, and solution-oriented approach to every project. Let’s work together to transform your ideas into robust and scalable digital products!

I’m a .NET developer specializing in building scalable, maintainable web applications using ASP.NET Core. I help businesses and startups turn ideas into reliable software by focusing on clean architecture, performance, and long-term maintainability. What I can help you with: • Building RESTful APIs using ASP.NET Core Web API • Designing clean and scalable architectures • Database design and optimization (SQL Server) • Authentication & authorization (JWT, OAuth) • Deploying applications to Azure Tech stack: C#, .NET (7–10), ASP.NET Core, Web API, MVC, Blazor, SQL Server, Azure I focus on writing clean, testable code and delivering solutions that are easy to maintain and scale. Let’s build something solid.

Your vision and requirements take top priority. Full-Stack development expertise ensures the transformation of complex ideas into powerful, scalable, and user-friendly solutions using C# | ASP.NET Core | ASP.Net MVC | Angular | React and AI-driven automation. Achievements: ✅ 8+ years in software development with over 46 successful platforms, web & mobile apps, and SAAS enterprise solutions✅ Proven expertise in ASP.NET Angular React SQL and AI integrations GPT AI automation ✅ Deep understanding of scalable cloud solutions on Azure 𝐓𝐡𝐞𝐬𝐞 𝐚𝐫𝐞 𝐭𝐡𝐞 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐭𝐡𝐚𝐭 𝐦𝐲 𝐭𝐞𝐚𝐦 𝐚𝐧𝐝 𝐈 𝐚𝐫𝐞 𝐩𝐫𝐨𝐮𝐝 𝐨𝐟: 💡 Zeno.PM. Enterprise project and program management tool with a lot of integrations and complex functionality such as Gantt editor, budget editor, reporting, etc. ChatGPT was recently integrated into the platform. The SaaS platform serves over 1,500 B2B clients. The core stack is JavaScript, C# ASP.NET, RAZOR, LINQ, MSSQL, jquery, html, css, Node JS, Asp.NET Core, Angular 12, AzureAD, SignalR, PowerBI 💡 Vital Voices Hub. Social good platform for communication and contribution for the non-profit organization. Work was started with MVP, currently working on the platform's redesign and adding more functionality to cover contributions for new users. Created with Python, Django, React, PostgreSQL, WebSocket 💡 Simba. AI Marketing Analysis Platform for elevating the measurement and strategy of clients' marketing endeavors. ChatGPT was integrated to build an AI assistant is all about making analytics easy for newbies in digital marketing. The core stack is Python, Flask, React, S3 Storage, Pandas, Tailwind CSS, and ChatGPT API. 💡 AI marketing tool for managing Google Ad Grants. The platform used OpenAI API integration to structure the collected keywords after the crawling process. The main technology stack is Python, OpenAI, React, Crowler, Core-Based App, and Tailwind CSS. 𝐌𝐲 𝐞𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: 📌 Backend & API Development C# ASP.NET Core ASP.Net MVC .NET RAZOR LINQ SQL Cache EntityFramework Core EF Core Dapper MSSQL for efficient database management SignalR for real-time communication AzureAD authentication & authorization RESTful & GraphQL APIs Node.js for additional backend processing 📌Python development Django, FastAPI, Flask, Golang, Starlette, async/await, concurrent apps, Frameworks writing, 3rd party integration, functional programming, OO programming, package development, PyPI, tus 📌 Frontend Development Angular Angular Material Akita for state management React JavaScript jQuery HTML CSS Power BI for data visualization 📌TypeScript & JavaScript: Angular, SvelteJS, React & React.js, React Native, Next.js, Tailwind CSS, Pandas, VanillaJS, jQuery, Webpack, Vite 📌 AI/ML: OpenAI API, ChatGPT, AI integration, AI automation, machine learning, embeddings, NumPy, GemBox for automated report generation 📌 Cloud & DevOps: AWS, Google Cloud (GCP), Firebase, Docker, Kubernetes, Heroku, Git, Microsoft Azure Azure Functions AzureAD CI/CD Pipelines Docker Kubernetes 📌 Databases: PostgreSQL, MySQL, MongoDB, Redis, Neo4j, SQLite, SQL Queries, Scaling 📌 APIs: GraphQL, RESTful APIs, JSON, Swagger, Socket, WebRTC, RPC, OAuth, Auth0 📌 Testing: Selenium, CI/CD, Cypress, Puppeteer, Pytest 📌 Payments: Stripe, PayPalTech Stack & Expertise: 𝐃𝐨𝐦𝐚𝐢𝐧𝐬: 📍 SaaS, B2B & B2C 📍 ERP & CRM 📍 Fintech & Banking 📍 E-commerce & Marketplaces 📍 Healthcare & Telemedicine 📍 Enterprise Solutions & Automation 📍 AI-Powered Analytics & Reporting Successful Projects: 🎯 Enterprise Web Applications ASP.NET Core Angular React 🎯 AI-Powered Solutions GPT automation 🎯 Real-Time Communication Apps SignalR WebSockets 🎯 Data Analytics & BI Dashboards Power BI 🎯 Workflow & Process Automation 🎯 Payment & Subscription Platforms Stripe 🎯 Marketplace & E-commerce Solutions 🎯 Custom ERP & CRM Systems Let’s build scalable, secure, and high-performance applications together!

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.

I am a Full-Stack Developer with 7+ years of experience and over 10,000 hours of hands-on development. I have strong experience with .NET, Blazor, Angular, React, Node.js, and Syncfusion. My expertise includes: 1:- Full-stack development using the Microsoft technology stack (.NET, C#, Blazor, Syncfusion) 2:- Hands-on experience and certifications in SQL Server, MongoDB, Cosmos DB, and T-SQL 3:- Front-end development using Angular, React, and Syncfusion 4:- Experience with AI workflows, integrations, automation, and AI-based application development 5:- Hands-on experience with Microsoft Azure, including App Services, Functions, deployments, Service Bus, Azure Blob Storage, and APIs 6:- Strong understanding of modern UI/UX best practices 7:- Experience with OpenAI, LangChain, LangGraph, and vector database integrations I love writing code on my own and creating meaningful solutions that serve the purpose. Let’s connect and see how I can help bring your idea to life. Thanks!