๐ 10+ Years Building Enterprise Applications
โก AI-Accelerated Development with Cursor AI, Claude Code & Azure OpenAI
You donโt just need a developer - you need someone who can build full products, connect frontend to backend to cloud, and embed AI into real business workflows that actually reduce cost, time, and manual effort.
I specialize in building modern AI-first applications and full-stack systems using a mix of frontend frameworks, backend APIs, cloud infrastructure, and LLM-powered automation. My focus is always on shipping scalable products, not just code.
What I Bring:
โ Full-stack development (.NET, React, Angular, modern API architectures)
โ AI-powered applications (OpenAI, Azure OpenAI, Claude, LLM integrations)
โ AI automation workflows (document processing, extraction, classification, summarization)
โ RAG systems (chat with documents, enterprise knowledge search, AI assistants)
โ Cloud architecture (Azure, AWS, Docker, CI/CD, serverless systems)
โ SaaS platforms (multi-tenant systems, subscriptions, RBAC, billing)
โ Backend APIs & microservices for scalable systems
โ Third-party integrations (payments, CRMs, external APIs)
Proven Results:
๐ณ Built fintech systems handling 10M+ daily transactions with high reliability
๐ข Migrated legacy enterprise systems into scalable cloud-native architectures
๐ค Delivered AI-powered document intelligence systems reducing manual work by 70%
โก Built LLM-based automation tools for classification, summarization, and workflow optimization
๐ง Developed AI chat and knowledge systems for internal enterprise use cases
โ๏ธ Designed Azure-based scalable architectures for high-traffic SaaS platforms
๐ Implemented secure multi-tenant systems with authentication and role-based access
๐ Built CI/CD pipelines enabling automated, fast, and reliable deployments
Why Clients Work With Me:
โ Strong full-stack ownership from UI to backend to cloud
โ Deep .NET expertise combined with modern AI engineering
โ AI-accelerated delivery for faster execution
โ Production-grade, scalable architecture (not prototypes)
โ Clear communication and long-term reliability
I focus on building software that performs, scales, and delivers real business value, not just code that works temporarily.
๐ Send an invite or message, and Iโll share a clear technical approach for your project.
.NET Core
AI Agent Development
AI Bot
LLM Prompt Engineering
AI Marketplace
AI App Development
AI Audio Generation
AI Video Generator
OpenAI API
AI Implementation
Retrieval Augmented Generation
Angular
React
TypeScript
Amazon Web Services
MySQL
MongoDB
Node.js
JavaScript
RESTful API
Priya K.
Mandi, India
$15/hr
4.6
1 jobs
With 7+ years of professional experience, I help startups, SaaS companies, and businesses build scalable, secure, and high-performance web applications using Senior Full Stack Developer| React, Next.js, .NET, Node.js, SaaS, APIs, and AI technologies.
I specialize in developing modern full-stack applications, RESTful APIs, AI-powered features, and cloud-based solutions that are fast, reliable, and built for long-term growth. Whether you need a new SaaS product, an enterprise web application, API integrations, or ongoing development support, I can help turn your ideas into production-ready software.
What I Can Help You With
โ Full Stack Web Application Development
โ React.js & Next.js Development
โ .NET Core & ASP.NET Core Development
โ Node.js Backend Development
โ AI Applications & OpenAI Integration
โ REST API Development & Third-Party Integrations
โ SaaS Application Development
โ Database Design & Optimization
โ Cloud Deployment (Azure & AWS)
โ Performance Optimization & Bug Fixes
โ Application Maintenance & Feature Enhancements
Technical Skills
Frontend
โ React.js
โ Next.js
โ JavaScript (ES6+)
โ TypeScript
โ HTML5
โ CSS3
โ Tailwind CSS
โ Bootstrap
Backend
โ C#
โ .NET Core
โ ASP.NET Core
โ ASP.NET MVC
โ Web API
โ Node.js
โ Express.js
AI & Integrations
โ OpenAI API
โ Azure AI
โ AI Chatbots
โ AI Automation
โ Third-Party API Integration
Databases
โ SQL Server
โ PostgreSQL
โ MySQL
โ MongoDB
Cloud & Tools
โ Microsoft Azure
โ AWS (EC2, S3)
โ Azure DevOps
โ GitHub
โ Git
โ CI/CD
Why Clients Choose Me
โ 7+ years of full-stack development experience
โ Clean, scalable, and maintainable code
โ Strong problem-solving and debugging skills
โ Reliable communication and on-time delivery
โ Experience building SaaS and enterprise applications
โ Long-term support and continuous improvements
โ Focus on writing secure, high-performance applications
Recent Experience
โ Built scalable web applications using React, Next.js, and .NET
โ Developed secure REST APIs and backend services
โ Integrated AI-powered features using OpenAI and Azure AI
โ Built SaaS products and custom business applications
โ Integrated payment gateways and third-party services
โ Converted Figma designs into responsive, production-ready interfaces
โ Deployed and managed applications on Microsoft Azure and AWS
Let's Build Something Great
If you're looking for a reliable Full Stack Engineer who can build modern applications with React, Next.js, .NET, Node.js, and AI, I'd love to discuss your project and help deliver a scalable, high-quality solution.
๐๐ฒ๐๐๐ผ๐ฟ๐ฑ๐: Full Stack Developer | Full Stack | Mobile App Developer | SaaS Application Development | Full Stack SaaS Developer | MERN Stack developer | MEAN Stack developer | Full Stack Developer React Node | React | Node | Next.js | MongoDB | REST API | .NET | PERN | React.js | React Developer | Node.js | React Node | Backend nodejs | node.js developer | Full Stack MERN | MERN MEAN | MERN developer | MERN stack | MEAN developer | .NET developer | .NET core | Full Stack .NET Developer | Azure | AWS | Google Cloud | REST API | Nextjs developer | Full Stack Developer | Web Developer | API Developer | .NET Angular | Microservices | Multi-Tenant SaaS | DevOps | .NET Framework | Saas | Full Stack React Developer | Full Stack Node.js Developer | Full Stack Angular Developer | CI/CD | Full Stack Development | Web Application Development | mern Full Stack Developer | mean Full Stack Developer | .net Full Stack Developer | SaaS Expert | React Full Stack Developer | Node Full Stack Developer | Angular Full Stack Developer | mern Stack Developer | Saas Expert
.NET Core
React
Next.js
MERN Stack
Node.js
API
MongoDB
SQL
Azure DevOps
Sass
Umbraco
Sitefinity
AI Development
Sachin G.
Mandi, India
$20/hr
4.8
21 jobs
โญ ๐๐จ๐ฉ-๐๐๐ญ๐๐ | ๐๐๐% ๐๐จ๐ ๐๐ฎ๐๐๐๐ฌ๐ฌ ๐๐๐จ๐ซ๐ | ๐+ ๐๐๐๐ซ๐ฌ ๐๐ฑ๐ฉ๐๐ซ๐ข๐๐ง๐๐ | $๐๐๐ค+ ๐๐๐ซ๐ง๐๐ | ๐๐๐๐+ ๐๐จ๐ฎ๐ซ๐ฌ
You donโt just need fast code. You need well-architected, production-ready software delivered efficiently.
Iโm a senior full-stack engineer with 7+ years of experience in Angular, React, and Node.js, combined with an AI-assisted development workflow (Cursor AI, Claude Code, v0, LLM APIs) that helps reduce build time without compromising quality.
I focus on shipping clean, scalable products from AI-powered MVPs and LLM integrations to enterprise-grade web applications.
๐๐ซ๐จ๐ฏ๐๐ง ๐๐๐ฌ๐ฎ๐ฅ๐ญ๐ฌ:
โAI SaaS Platform (9 days):
Built a GPT-4o-powered document analysis tool with RAG, embeddings, and a React dashboard, launched to 200+ beta users.
โE-Commerce Marketplace (6 days)
Delivered an Angular + Node.js marketplace with Stripe payments, real-time inventory, and AWS deployment.
โAutomotive ERP (12 days)
Replaced a legacy system with a custom Angular ERP, reducing admin workload by 60%.
๐๐ก๐ฒ ๐๐ฅ๐ข๐๐ง๐ญ๐ฌ ๐๐จ๐ซ๐ค ๐๐ข๐ญ๐ก ๐๐:
Efficient, AI-Assisted Delivery โ AI tools help accelerate development, reduce boilerplate, and catch issues early.
Practical LLM Experience โ Real-world production use of OpenAI, Claude, Gemini, Replicate, ElevenLabs, and Fal.ai.
End-to-End Ownership โ Frontend, backend, database, and deployment handled by one senior engineer.
Consistent Track Record โ Top-Rated on Upwork with a 100% Job Success Score.
Strong Technical Judgment โ I help shape the right solution, not just implement features.
Clear, Reliable Communication โ Async-friendly, proactive updates, and transparent progress.
๐๐ก๐๐ญ ๐ ๐๐ฎ๐ข๐ฅ๐:
AI-Powered SaaS MVPs โ Angular or React frontends with NestJS / Node.js backends
Intelligent Chatbots & AI Agents โ Context-aware bots with tools, memory, and RAG
AI Automation Workflows โ n8n or custom-built LLM-driven automations
Enterprise Web Applications โ Advanced Angular apps (v10โ18)
APIs & Microservices โ RESTful and GraphQL services
E-Commerce & Payments โ Stripe, Braintree, Authorize.Net
Custom ERP & Business Systems
Third-Party API Integrations
๐๐๐๐ก ๐๐ญ๐๐๐ค & ๐๐ฑ๐ฉ๐๐ซ๐ญ๐ข๐ฌ๐:
๐๐ & ๐๐๐ ๐๐ง๐ญ๐๐ ๐ซ๐๐ญ๐ข๐จ๐ง:
LLM APIs: OpenAI (GPT-4o), Anthropic Claude, Google Gemini, Replicate, ElevenLabs, Fal.ai
RAG Pipelines: Embeddings, vector search, document ingestion & retrieval
Automation: n8n workflows, custom LLM orchestration, model fine-tuning
AI Dev Tools: Cursor AI, Claude Code, GitHub Copilot, Replit Agent
Generative Pipelines: Text, image, audio, and video generation
๐ ๐ซ๐จ๐ง๐ญ๐๐ง๐:
Angular 10โ18 (CLI, Universal/SSR, Ivy, Lazy Loading, Reactive Forms, i18n)
React v18 (Hooks, Context, Next.jsโready)
TypeScript & JavaScript (ES2022+)
UI Libraries & Styling: PrimeNG, Angular Material, Tailwind CSS
AI UI Tooling: v0 by Vercel, Lovable.dev, Bolt.new (rapid component generation)
๐๐๐๐ค๐๐ง๐:
Node.js v18+, Express.js, NestJS
API Architectures: RESTful APIs, GraphQL, WebSockets
Databases: MySQL, PostgreSQL, MongoDB, SQL Server
๐๐ฅ๐จ๐ฎ๐ & ๐๐๐ฏ๐๐ฉ๐ฌ:
Cloud Platforms: AWS (EC2, S3, Lambda), Microsoft Azure, Google App Engine, DigitalOcean
Version Control & CI/CD: GitHub, GitLab, Bitbucket, automated pipelines
Project Management: Jira, ClickUp, Trello
Methodologies: Agile / Scrum
๐๐จ๐ฐ ๐ ๐๐จ๐ซ๐ค:
Discovery & Scoping (Day 1):
I review your requirements, define the architecture, select the right tech stack, and deliver a clear technical scope with realistic timelines, no guesswork or vague estimates.
AI-Accelerated Build (Days 2โN):
I use AI tools like Cursor AI and Claude Code to speed up development, refactor confidently, and catch issues early, maintaining high code quality while moving fast.
Continuous Integration & Testing:
Automated tests, cross-device QA, and performance optimization are built into every sprint, not treated as an afterthought.
Cloud Deployment & Handoff:
I handle production deployment on AWS or Azure, set up CI/CD pipelines, and provide clean documentation so your team can take over with confidence.
Ongoing Support & Iteration:
After launch, I support maintenance, security updates, and feature enhancements, acting as a long-term technical partner, not just a contractor.
๐๐๐ญโ๐ฌ ๐ฌ๐ก๐ข๐ฉ ๐ฌ๐จ๐ฆ๐๐ญ๐ก๐ข๐ง๐ ๐ซ๐๐๐ฅ.
Send your idea, and Iโll respond with a clear scope and timeline within hours.
Angular
Node.js
JavaScript
RxJS
RESTful API
Amazon Web Services
MySQL
MongoDB
Angular Material
NGINX
Web Application
TypeScript
React
ExpressJS
Unit Testing
Yukti K.
Mandi, India
$14/hr
5.0
1 jobs
Iโm Yukti Kapoor, a seasoned web developer and designer with over a decade of experience crafting innovative, high-performing web applications. My background spans full-stack development, front-end design, and UI/UX responsiveness across a range of modern technologies.
I am highly adaptable to shifting priorities and unfamiliar situations. My strength lies in quickly learning new concepts, technologies, and project domains to help clients achieve their business goals efficiently.
๐ป Core Web Design & Development Expertise
โ ASP.NET โ Robust, secure web app development using Microsoft technologies
โ .NET Core / C# โ Scalable back-end development for enterprise-grade solutions
โ Angular โ Single Page Applications (SPA) with modular, maintainable architecture
โ React.js โ Interactive and responsive UI development
โ Node.js โ Efficient back-end development using event-driven architecture
โ WordPress โ Custom WordPress development and theme customization
โ HTML5 & CSS3 โ Modern, semantic markup and advanced styling
โ Bootstrap 3/4 โ Fast and responsive UI layout implementation
โ jQuery โ Enhanced client-side interactivity and DOM manipulation
โ Responsive Design โ Mobile-first and device-agnostic design expertise
๐ What Sets Me Apart
โค 10+ years of real-world experience
โค Strong ability to learn and adapt to new technologies
โค Detail-oriented, communicative, and reliable
โค Client-focused approach with timely delivery
โค Collaborative, yet self-driven and responsible
Iโm here to help bring your ideas to life through efficient development, intuitive design, and dependable delivery.
๐ฉ Letโs connect and build something amazing!
ASP.NET
ASP.NET Core
PHP
CSS
HTML5
C#
MySQL
Bootstrap
SQL Server Integration Services
ASP.NET Ajax
MVC Framework
Angular 10
NodeJS Framework
WordPress Website
GUI Design
Sandeep K.
Mandi, India
$12/hr
5.0
1 jobs
๐ Senior Mobile Application Developer
๐ฑ iOS & Android | Swift | Kotlin | React Native | Flutter | Dart | Firebase | UI/UX
๐ผ Experience: 5+ years in Mobile & Full-Stack Development
Tech Stack: Flutter, Dart, React Native, TypeScript, JavaScript, Swift, Kotlin, .NET
I am a Senior Mobile Application Developer with 5+ years of experience delivering scalable, high-quality mobile applications. I specialize in transforming product ideas into robust iOS and Android apps using Flutter and modern cross-platform technologies.
Core Expertise-
Proficient in Flutter and Dart for cross-platform app development
Strong experience with React Native, Swift (iOS), and Kotlin (Android)
Backend development using .NET (ASP.NET Core/MVC), MERN, and Laravel
RESTful API integration and third-party services
Database management: SQL Server, MySQL, SQLite, Entity Framework
UI/UX design with a focus on usability and performance
CI/CD pipelines for automated build, testing, and deployment
Strong problem-solving and debugging skills
Services Offered
Custom iOS & Android App Development (Flutter, React Native)
Backend & API Development (MERN, Laravel, .NET)
UI/UX-focused Mobile App Design
App Testing & Quality Assurance
Ongoing Maintenance & Support
Letโs discuss your idea and how I can help bring it to life. Click โInvite to Jobโ to schedule a call.
Best regards,
Sandeep
Dart
Flutter
Mobile App Development
FlutterFlow
Android App
iOS Development
Android SDK
iOS SDK
Firebase
Rajneesh K.
Mandi, India
$18/hr
5.0
10 jobs
๐ Top Rated Plus | 100% Client Feedback | 3000+ Hours
I help businesses build fast, scalable .NET applicationsโand extend them to web, mobile, and AI-powered systems when needed.
With 7+ years of experience, Iโve delivered 50+ applications used by startups and enterprises, including platforms handling 1M+ users and millions of daily transactions.
If you need someone who can design, build, and scale your system end-to-end, I can help.
๐ก What I Can Help You With
Build or improve ASP.NET Core / Web API / microservices
Develop modern Angular or React frontends
Build cross-platform apps using .NET MAUI , Blazor (Android, iOS, Windows)
Add AI features (chat, automation, semantic search, workflows)
Fix performance issues (30โ40% improvements in real projects)
Design scalable architecture for SaaS or enterprise systems
๐ง Practical AI Integration
I focus on AI where it actually creates business value:
AI-powered APIs and backend workflows
Semantic search with vector databases (Azure AI Search, Pinecone)
Automation to reduce manual work
Secure, production-ready integrations (OpenAI, Azure OpenAI)
โ๏ธ Core Tech Stack
Backend: C#, ASP.NET Core, Web API, Entity Framework, Microservices
Frontend: Angular, React, JavaScript
Mobile: .NET MAUI (cross-platform apps)
Cloud & DevOps: Azure, AWS, Docker, CI/CD
Database: SQL Server (performance optimization), MySQL
๐ Proven Results
50+ applications delivered
Systems handling 1M+ users & high-scale traffic
Database performance improved by 40%+
Experience working across 100+ repositories in team environments
๐ฏ What Itโs Like Working With Me
Clean, scalable architecture (not quick fixes)
Clear communication and reliable delivery
Strong debugging and performance optimization
Practical solutions focused on your business goals
๐ Letโs Talk
Whether youโre:
Launching a new SaaS
Building a web + mobile app (MAUI)
Adding AI features
Fixing performance issues
Send me a message, and Iโll suggest a practical approach based on your goals.
.NET Core
.NET Framework
ASP.NET MVC
Angular
ASP.NET
MySQL
API Integration
JavaScript
C#
API Development
Microsoft Azure
API
Blazor
Amazon S3
React
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