You will get I will build a secure REST API with FastAPI, JWT Auth & PostgreSQL


Project details
Your backend is the foundation of your entire product — and a poorly built API will cost you weeks of fixes, security incidents, and lost clients.
I build clean, production-ready REST APIs using FastAPI and Python, delivering fast response times, strict data validation, and secure authentication out of the box.
What you get:
✔ Async endpoints built for speed with FastAPI
✔ Secure JWT authentication with role-based access control
✔ Database integration via SQLAlchemy (PostgreSQL, SQLite)
✔ Full Pydantic validation — no bad data gets through
✔ Interactive Swagger UI docs ready for your frontend team
✔ Clean modular code (Routers, Schemas, CRUD, Models)
✔ Full source code ownership — no lock-in
Whether you're building a mobile app backend, an automation tool, or a SaaS product, I deliver working, tested code on time.
📩 Not sure which package fits your project? Message me before ordering — I'll recommend the right scope in under 24 hours.
I build clean, production-ready REST APIs using FastAPI and Python, delivering fast response times, strict data validation, and secure authentication out of the box.
What you get:
✔ Async endpoints built for speed with FastAPI
✔ Secure JWT authentication with role-based access control
✔ Database integration via SQLAlchemy (PostgreSQL, SQLite)
✔ Full Pydantic validation — no bad data gets through
✔ Interactive Swagger UI docs ready for your frontend team
✔ Clean modular code (Routers, Schemas, CRUD, Models)
✔ Full source code ownership — no lock-in
Whether you're building a mobile app backend, an automation tool, or a SaaS product, I deliver working, tested code on time.
📩 Not sure which package fits your project? Message me before ordering — I'll recommend the right scope in under 24 hours.
Programming Languages
PythonCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$80
|
Standard
$180
|
Advanced
$350
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 2 | 3 | 3 |
Number of Pages | 0 | 0 | 0 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
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AN
Antonina N.
Jun 21, 2026
Simple website for selling items, Direct to consumer, only for pc
Working with Jean Tshibangu was an absolute pleasure. He was highly professional, communicated clearly throughout the project, and delivered top-quality work well ahead of the deadline. He paid great attention to detail and exceeded all expectations. I highly recommend Jean for any project and look forward to collaborating with him again in the future.
About Tshibangu
Django Full-Stack Developer | E-commerce & Business Systems Specialist
Uvira, Congo, the Democratic Republic of the - 10:02 am local time
Most web applications fail not because of the code, but because they don't solve the core business problem. I specialize in building robust, scalable, and secure web solutions using Django and Python that bridge the gap between complex requirements and a seamless user interface
.
As a reliable technical partner, I focus on clean architecture and maintainable systems, ensuring your platform is ready to scale as your business grows
.
A Proven Track Record of Complexity: Recently, I delivered a complete bilingual (English/Armenian) e-commerce platform for a global client, managing everything from initial requirements to final deployment This project featured:
Centralized Business Control: A custom administration dashboard that reduced manual order processing and provided real-time inventory oversight
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Seamless Global Commerce: A multi-language product catalog coupled with custom payment gateway architecture (iDram integration)
Performance-First Frontend: A responsive interface built with modern technologies to ensure a polished feel across all devices
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How I can help your business grow:
Custom Django Applications: Building secure backends for SaaS, internal tools, and customer portals
.
E-commerce Engineering: Beyond simple stores—I build systems with complex logic, inventory sync, and secure checkout flows
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Database Architecture: Expert schema design in PostgreSQL and MySQL to ensure data integrity and fast query performance
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API Development: Creating clean, documented RESTful APIs for mobile and web integrations
.
Why choose me as your partner? I don't just "write code." I take ownership of the outcome. I provide clear communication, thorough documentation, and a commitment to delivering a system that is as easy to manage as it is powerful to use .
Let’s discuss your project goals. Send me a message, and we can turn your requirements into a stable, production-ready solution.
Steps for completing your project
After purchasing the project, send requirements so Tshibangu can start the project.
Delivery time starts when Tshibangu receives requirements from you.
Tshibangu works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements review & API architecture
I analyze your requirements and define the full API structure: endpoints, data models, auth flow, and database schema — before writing any code.
Development, validation & testing
I build all endpoints with Pydantic validation, JWT auth, and database integration. Every route is tested before delivery to ensure it works exactly as expected.

