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$
USD
I will build ai full stack web app with python fastapi, react and langchain
Parvez P
5.0
5.0
About this gig
Looking for a Python AI developer or Full stack AI developer to build your web application from scratch?
I specialize in building scalable AI-powered applications from AI Agents, AI Chatbots to LLM integrations, APIs, SaaS platforms, and cloud deployment.
Frontend: React and Next.js, React Native
Backend & API Development: FastAPI, Node.js, REST APIs - built to scale
LLM & AI Integration: OpenAI, Claude, Gemini chatbots, AI agents, multi-agent workflows
RAG Pipelines & Vector Search: LangChain, LangGraph, Pinecone - semantic search and retrieval
Auth & SaaS Infrastructure: JWT, OAuth2, RBAC, Stripe subscriptions and webhooks
Real-Time & Async Systems: WebSockets, Redis, Celery - queues and background processing
Database Architecture: PostgreSQL, MongoDB, Redis - schema design and optimization
Cloud Deployment & MLOps: Docker, AWS, GCP, Supabase, CI/CD
Why choose me:
- 5+ years shipping production apps not prototypes
- I write code that scales not just code that works today
- Deadlines are commitments, not estimates
- Your repo will be something you're proud to show investors
Message me I'll reply with scope, timeline and quote.
Get to know Parvez P
Parvez P
AI Developer, Full Stack AI Engineer, Gen AI Engineer
- FromIndia
- Member sinceJul 2022
- Avg. response time1 hour
- Last delivery1 year
Languages
English, German, Russian, Spanish
I am a Full Stack AI Engineer with 5 years of experience building intelligent, production-ready web apps — from AI Agents, LLM integrations and RAG pipelines to scalable API backends and clean React frontends.
I work with Python, FastAPI, LangChain, LangGraph and LLMs — OpenAI, Claude, Gemini — to ship AI features that actually work in production. Backend architecture, vector search, real-time systems and cloud deployment are my core. Frontend side covers React, Next.js and TypeScript.
Also experienced in Web3 and decentralized app development.
Clean code. Scalable systems. Real results.
FAQ
What kind of AI web applications do you build?
I build full stack AI-powered web applications — SaaS platforms, LLM chatbots, RAG systems, AI dashboards and API-heavy backends. Every project is production-ready, not a prototype. If it involves Python, FastAPI, LangChain or LLM integration, I've l
Can you integrate OpenAI, Claude or Gemini into my existing app?
Yes. I work with all major LLM providers — OpenAI, Claude, Gemini and Groq. Whether you need a chatbot, AI agent, document Q&A system or generative feature added to an existing app, I can handle the full integration including prompt
What is a RAG pipeline and do I need one?
RAG stands for Retrieval-Augmented Generation. It lets an LLM answer questions using your own data — documents, PDFs, databases or knowledge bases — instead of just its training data. If you want an AI that knows your business, your product or your conten
Can you handle deployment and cloud infrastructure?
Yes. I deploy on AWS, GCP, Supabase and Vercel with Docker, environment configuration and CI/CD set up. You'll receive a fully deployed, live application — not just local code.
How do you handle project communication and updates?
I share a clear scope and milestone plan before starting. You'll get regular updates at each milestone and I respond fast — usually within a few hours. No ghost mode, no surprises.
Reviews
9 reviews for this Gig
| (7) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
K 
kingdamino
Ghana
Parvez did an OUTSTANDING job with delivering top-notch, well-documented blockchain solutions, showcasing incredible code expertise. His proactive communication and quick responsiveness made the collaboration seamless—he truly went above and beyond! Highly RECOMMEND working with him again. 🙌
$100-$200
Price
1 day
Duration
Helpful?A 
arthurbagourd
United Kingdom
Work completed as required, very quick and efficient.
Helpful?I igigzi
Switzerland
Great work with the front end of one page website. We needed to adjust the design, and he did it great.
Helpful?E ericz0303
Repeat Client
Malaysia
excellent
Helpful?E ericz0303
Repeat Client
Malaysia
fast and responsible
Helpful?
Reviews
9 reviews for this Gig
| (7) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
K kingdamino
Ghana
Parvez did an OUTSTANDING job with delivering top-notch, well-documented blockchain solutions, showcasing incredible code expertise. His proactive communication and quick responsiveness made the collaboration seamless—he truly went above and beyond! Highly RECOMMEND working with him again. 🙌
$100-$200
Price
1 day
Duration
Helpful?A arthurbagourd
United Kingdom
Work completed as required, very quick and efficient.
Helpful?I igigzi
Switzerland
Great work with the front end of one page website. We needed to adjust the design, and he did it great.
Helpful?E ericz0303
Repeat Client
Malaysia
excellent
Helpful?E ericz0303
Repeat Client
Malaysia
fast and responsible
Helpful?
