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Fiverr Pro
English
$
USD
I will build a multi tenant saas backend with fastapi and postgresql
Muhammad H
About this gig
I'll build a production-grade multi-tenant SaaS backend with FastAPI and PostgreSQL the same architecture I've shipped in real products serving multiple enterprise clients.
What I deliver:
Multi-tenant architecture with clean tenant isolation at the database level
JWT authentication, roles and permissions, secure API design
REST APIs with FastAPI async, fast, and fully documented (OpenAPI)
PostgreSQL schema design, SQLAlchemy models, Alembic migrations
Redis caching and background jobs with Celery
Stripe-ready billing hooks and webhook handling
Docker-ready code with AWS deployment support
Tests, code comments, and clear documentation
I've built multi-tenant SaaS backends in production, including an enterprise RAG chatbot platform (MeiChat) serving multiple clients on one codebase.
Technologies: Python, FastAPI, PostgreSQL, SQLAlchemy, Alembic, Redis, Celery, Docker, AWS, Stripe
From a lean MVP backend to a full production platform with monitoring I deliver clean, scalable code your team can build on.
Get to know Muhammad H
Muhammad H
AI Engineer specializing in LLM Agents RAG Systems Python and FastAPI
- FromPakistan
- Member sinceJul 2026
Languages
English, Urdu, Punjabi
I build production AI systems - AI agents, RAG pipelines, LLM applications, and multi-tenant SaaS backends - using Python, FastAPI, LangGraph, and PydanticAI. Over 5 years I have shipped agentic assistants with tool calling and real-time streaming, multi-tenant RAG chatbot platforms with Pinecone and OpenAI/Claude integrations, and scalable backend systems on AWS with PostgreSQL, Redis, and Docker. I work with startups and product teams who need AI that works in production, not just demos. Let's connect.
FAQ
How do you handle multi-tenancy and data isolation?
I use tenant-scoped database design (shared schema with tenant IDs or separate schemas, depending on your needs) with row-level security and middleware that enforces tenant context on every request, so no tenant can ever see another tenant's data.
Can you integrate Stripe or other payment systems?
Yes. I integrate Stripe subscriptions with webhook handling for plan changes, trials, and cancellations. I can also integrate other providers and connect the billing state to your tenant and user models.
Can you deploy the backend and hand over the code?
Yes. Every package includes full source code with comments. I deliver Docker-ready code and can deploy to AWS (EC2, ECS, or Lambda) with environment setup, migrations, and basic monitoring so your team can take over easily.
