I will develop python backend, fastapi restapi, and full stack web app


Level 2
About this gig
Need a backend that actually handles production traffic, AI integrations, and real data without falling apart?
I build Python FastAPI backends connected to the tools and AI systems your product actually needs. Clean async endpoints. Proper database schemas. Secure auth.
What I build:
FastAPI REST API with async routes, Pydantic validation, and full OpenAPI documentation out of the box.
PostgreSQL and Supabase backends with proper schema design, row level security, indexing, and migrations data stored correctly from day one.
Secure backend with JWT, OAuth2, refresh tokens, RBAC, and rate limiting. No auth bolted on after the fact.
AI endpoints LangChain, OpenAI, RAG, streaming responses via FastAPI AI agents hitting your API, LLMs reading from your database, RAG pipeline serving your frontend in real time.
Third party integrations Stripe, Twilio, SendGrid, webhooks, CRMs, any external API connected cleanly.
Deployment on Vercel, AWS, Docker, DigitalOcean with Nginx, SSL, environment management, and CI/CD.
Message me before ordering.
Get to know Ai Maverick
AI Engineer, AI SaaS, MVPs, LangChain Agents, RAG, MLOps
Level 2
- FromPakistan
- Member sinceMay 2022
- Avg. response time1 hour
- Last delivery2 days
Languages
English
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FAQ
What do you need from me to get started?
Your project requirements in plain English. What the API needs to do, what it connects to, and what stack you already have in place. No technical doc required, we figure out the rest together.
Can you integrate my existing database or third party tools?
Yes. Whether it is an existing PostgreSQL schema, a Supabase project, or external APIs like Stripe, Twilio, or a CRM. I connect everything cleanly to the FastAPI backend without breaking what already works.
Will the backend handle AI agents or LLM integrations?
Yes. I build FastAPI backends designed to work with LangChain, OpenAI, RAG pipelines, and AI agents. streaming responses, async endpoints, vector database connections, all of it production ready.
