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You will get A Scalable Multi-Tenant Backend Built with FastAPI or Django

Rajinder M.Status: Offline
Rajinder M. Rajinder M.
4.3
Preview image

Let a pro handle the details

Buy Web Application Programming services from Rajinder, priced and ready to go.
Rajinder M.Status: Offline
Rajinder M. Rajinder M.
4.3
Preview image

Let a pro handle the details

Buy Web Application Programming services from Rajinder, priced and ready to go.

Project details

I build multi-tenant backend systems in Python — multiple customers share one application, but each tenant's data stays separated and access is role-controlled.

What gets built: REST APIs (FastAPI or Django), tenant isolation, role-based access, a PostgreSQL data layer, background jobs, and third-party integrations. I design the structure first, then build, deploy to AWS or GCP, and hand over documented.

The decisions that matter most happen early — how tenants are separated and how data is modeled — since those are costly to change later. 70+ projects, 5,500+ hours behind it.
Programming Languages
Python
Coding Expertise
Performance Optimization, Security, Design
What's included
Service Tiers Starter
$600
Standard
$800
Advanced
$1,500
Delivery Time 10 days 20 days 45 days
Number of Revisions
58Unlimited
Number of Pages
6812
Design Customization
-
Content Upload
-
Responsive Design
Source Code

Frequently asked questions

4.3
41 reviews
63% Complete
(26)
20% Complete
(8)
7% Complete
(3)
5% Complete
(2)
5% Complete
(2)

KU

Kingsley U.
5.00
May 14, 2026
AI-Powered Video Generation Platform Work Rajinder has shown good understanding of the AI Video workflow we are building. He has been diligently implementing the project with good communication. We are looking forward to working with him long term and I would highly recommend him.

SS

Sohin S.
5.00
Apr 23, 2026
AI Agent Development Specialist Needed Was very thorough and prompt. Built an AI Agent.

TA

Talence A.
5.00
Feb 12, 2026
AI/NLP Developer (2-3 months) Skills Required: • Python (FastAPI, Flask), OpenAI/GPT, Google NLP

BA

Bola A.
5.00
Dec 17, 2025
Automation using n8n and AI

JL

Jordan L.
5.00
Nov 25, 2025
Backend Engineer (AWS Data Ingestion & Graph Recommender Transition)
Rajinder M.Status: Offline

About Rajinder

Rajinder M.Status: Offline
Senior Python Backend Engineer | Scalable Systems & API Architecture
92% Job Success
4.3  (41 reviews)
Jawalamukhi, India - 5:47 pm local time
I build Python backend systems that hold up as they grow — designed properly from the start, so you're not rebuilding them a year later when traffic or features outpace the original setup.

Most backend problems aren't really about writing code. They come from decisions made early that get expensive later. I focus on getting those right: how the system is structured, how the data is modeled, where the bottlenecks will show up, and what to build now versus what to leave room for. That judgment is what separates a system that scales from one that gets rewritten.


What I do:

Backend & APIs — FastAPI and Django REST, built for real traffic. Versioned, well-structured APIs with proper error handling, pagination, and idempotency — not just happy-path code.

Architecture & scale — Multi-tenant SaaS systems with tenant isolation and role-based access. Structuring services and data flow so the system stays maintainable as it grows, not just on day one.

Data layer — PostgreSQL schema design, indexing, query optimization, and migrations without downtime. Redis for caching and queues.

Async & background work — Celery, event-driven workflows, webhook handling, and retries — the parts that need to keep working when external services don't.

Taking it to production — I deploy what I build: Docker, AWS/GCP, CI/CD, and monitoring. I own the system end to end, so nothing gets handed over half-finished.

When a system needs it, I also cover automation — n8n, Make, Zapier, or custom Python scripts — along with payment and third-party API integrations, so you get a complete build rather than parts to stitch together.


Why hire me:

70+ completed projects, $80K+ earned on Upwork, 5,500+ hours, and consistent 5-star reviews. Recent work includes a recruitment platform handling 50K+ requests/day, a multi-service exam platform, and multi-tenant SaaS systems running in production. The code is clean, documented, and maintainable, and I deliver on time.

If you need a senior engineer to build a backend that stays reliable long after launch — and to make the right calls while building it — message me.

Tech: Python, FastAPI, Django, PostgreSQL, Redis, Celery, Docker, AWS, GCP

Steps for completing your project

After purchasing the project, send requirements so Rajinder can start the project.

Delivery time starts when Rajinder receives requirements from you.

Rajinder works on your project following the steps below.

Revisions may occur after the delivery date.

Understand & scope

We talk through what the system does, your tenants and roles, and where you expect it to scale. I confirm the approach before any code.

Architecture & data design

I design the schema, tenant isolation, and API structure first — getting the foundation right is what prevents an expensive rebuild later.

Review the work, release payment, and leave feedback to Rajinder.