You will get React JS Developer | Node, Next & Express Full-Stack Web Development
Project details
Get a professional React JS developer to build dynamic, high-performance web applications that are fully responsive and scalable. I specialize in React JS, Next.js, Node.js, and Express.js, creating seamless frontend interfaces and robust backend systems. My services include full-stack web development, API integration, database management (SQL, MongoDB, PostgreSQL), authentication, and cloud deployment. I design clean, modern UIs, implement real-time features, REST/GraphQL APIs, and server-side rendering, and optimize apps for speed, security, and SEO performance. Whether you need a startup MVP, SaaS platform, e-commerce site, or enterprise web application, I deliver maintainable, scalable, and production-ready solutions tailored to your business needs.
What's included $340
These options are included with the project scope.
$340
- Delivery Time 5 days
- Number of Revisions 4
- Number of Pages 8
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David J.
Sep 5, 2025
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James B.
Aug 12, 2025
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Excellent! Great job :) Great team
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James B.
May 3, 2023
Create an app (or Edit old App) where users guess how much movies make at the box office
Excellent work provided by the team. A++ Would recommend!
Su
Syed Anees u.
Apr 24, 2015
Wordpress website editing
Syed is an excellent, hard worker. Will definitely be hiring him in the future for further work. Highly recommended!
MR
MICHAEL R.
Jul 24, 2014
Android mobile app testing
About Syed Anees
AI Full Stack Developer | SaaS, React, Next.js, Node.js & AI Agents
Lahore, Pakistan - 6:08 am local time
I’m an AI Full Stack Developer specializing in SaaS platforms, AI agents, RAG systems, web applications, and cross-platform mobile apps. I work across the complete product lifecycle—from architecture and database design to frontend, backend, AI integration, deployment, and ongoing optimization.
I build production-ready applications using React, Next.js, TypeScript, Node.js, Python, FastAPI, React Native, PostgreSQL, Supabase, AWS, and modern AI/LLM technologies.
What I Build
AI Applications & Intelligent Agents
AI agents and multi-step AI workflows
LLM integrations with OpenAI, Anthropic Claude, and Gemini
Retrieval-Augmented Generation (RAG)
LangChain and LangGraph systems
Semantic search and vector databases
AI chatbots and conversational applications
OCR and AI-powered document processing
AI automation and business workflow systems
SaaS & Full-Stack Web Applications
Multi-tenant SaaS platforms
MVPs and production applications
React/Next.js frontends
Node.js/NestJS/Python/FastAPI backends
REST and GraphQL APIs
PostgreSQL, MongoDB and Supabase
Authentication, subscriptions and Stripe
Real-time functionality and third-party integrations
Mobile Applications
React Native applications
iOS and Android development
Expo and Firebase
Push notifications
In-app subscriptions
AI-powered mobile experiences
App Store and Google Play deployment
Selected Experience
Enterprise AI Agent Platform — Tessera
Developed core AI architecture for a legal technology platform using LangChain, real-time transcription and RAG pipelines. The resulting automation reduced operational workload by approximately 80%.
AI SaaS — Jet Prompt Optimizer
Helped scale an early prototype into a comprehensive SaaS product using Next.js, Python/FastAPI and a multi-tier prompt optimization engine.
AI Fitness SaaS — TroponinIQ
Built full-stack functionality using React and Node.js, including subscriptions, personalized AI coaching, food analysis and a Pinecone-based RAG knowledge system trained on 25+ years of fitness content.
AI Mobile Application — HelloBible
Built the cross-platform application from scratch using React Native, Expo and Firebase, with conversational AI, smart search, subscriptions, push notifications and iOS/Android deployment.
I also have experience building workflow automation and content platforms using Next.js, FastAPI, n8n, APIs and cloud infrastructure.
Why Clients Work With Me
I approach development from both an engineering and product perspective. Before writing code, I consider architecture, scalability, maintainability, data models, security, performance and the long-term requirements of the product.
Whether you are:
→ Building an AI-powered MVP from scratch
→ Turning an existing prototype into a scalable SaaS
→ Adding AI agents or RAG to an existing application
→ Building a React/Next.js web platform
→ Developing a React Native mobile application
→ Modernizing an existing backend or API
→ Fixing performance, architecture or integration problems
I can work across the stack and take ownership from concept → architecture → development → AI integration → deployment → maintenance.
Tech stack: React, Next.js, TypeScript, Node.js, NestJS, Python, FastAPI, React Native, Expo, PostgreSQL, MongoDB, Supabase, Firebase, AWS, Docker, Vercel, Stripe, OpenAI, Claude, Gemini, LangChain, LangGraph, Pinecone, RAG, REST, GraphQL and n8n.
If you have an idea, an existing MVP, or a product that needs to become more scalable and AI-native, let’s discuss the architecture and the best path to production.
Keywords on which you can find me:
Senior Full Stack Developer | Full Stack Web Developer | Next.js Developer | React.js Developer | Node.js Developer | Supabase Developer | TypeScript Developer | JavaScript Developer | Python Developer | FastAPI Developer | Express.js | NestJS | MongoDB | PostgreSQL | MySQL | Supabase | Firebase | Tailwind CSS | AWS | Docker | REST API Development | GraphQL | WebSockets | OpenAI API | AI Developer | AI Integration | LangChain | RAG Developer | Vector Database | AI Automation | AI Agent Development | SaaS Developer | SaaS Development | Web Application Development | Custom Web Development | Admin Dashboard Development | API Integration | Third-Party API Integration | MVP Development | Marketplace Development | E-Commerce Development | Frontend Developer | Backend Developer | Full Stack Developer | Bug Fixing | Performance Optimization | Claude Code | Claude AI | Cursor AI | AI Website Development | Web App Full Stack Developer | AI Full Stack Developer
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