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I will develop secure rest API with python fastapi and postgresql
Mauricio O.
About this gig
Are you looking for a secure, high-performance backend infrastructure or a scalable RESTful API for your web or mobile application?
I develop robust server-side architectures using Python FastAPI and PostgreSQL. By leveraging asynchronous request handling, strict Pydantic validation, and clean database modelling, I deliver backends built for high throughput and straightforward maintenance.
Whether you need a full CRUD API from scratch, third-party API integrations, automated AI/LLM workflows, or containerized deployments, I provide clean, production-ready code.
What you get with this gig:
High-performance RESTful APIs built with Python and FastAPI.
Interactive API documentation generated automatically (Swagger UI / OpenAPI).
Relational database modelling and migrations using PostgreSQL and SQLAlchemy.
Secure token-based authentication (OAuth2 / JWT) and data validation.
Containerized development and deployment setups via Docker and Docker Compose.
Integration with external services, payment gateways, and LLM APIs (OpenAI/Anthropic).
Fully commented, modular code adhering to clean architecture standards.
Tech Stack:
Python / FastAPI / Flask
PostgreSQL / SQLite
SQLAlchemy ORM
Get to know Mauricio O.
Mauricio O.
Full Stack Developer
- FromBrazil
- Member sinceJun 2022
- Avg. response time1 hour
Languages
English, Spanish, Portuguese
🚀 Full-Stack Developer & Designer building scalable, high-quality web solutions. From personal blogs to complex web apps, I handle everything from UI/UX design to final deployment.
💻 Tech Stack: ReactJS, Node.js, JS (ES6+), HTML5/CSS3 (Grid/Flexbox), PostgreSQL, SQLite & Linux.
✨ Why Choose Me?
Mobile-first, fully responsive designs
Clean, Git-managed code & full documentation
Clear, proactive communication
Let’s bring your vision to life and hit your business goals. Message me today to get started!
My Portfolio
FAQ
Why choose FastAPI over other Python frameworks like Flask or Django?
FastAPI provides native asynchronous support (async/await), delivering execution speeds comparable to Node.js and Go. It also includes automatic data validation via Pydantic and generates interactive Swagger documentation out of the box.
Do you provide automatic API documentation?
Yes. Every API built with FastAPI automatically generates interactive documentation accessible via /docs (Swagger UI) and /redoc, allowing you to test endpoints directly in your browser.
Will the backend include database integration and migrations?
Yes. Standard and Premium tiers include complete PostgreSQL setup using SQLAlchemy ORM and Alembic migrations, ensuring data integrity and straightforward schema updates.
Can you deploy the API to a cloud server?
Yes. Standard and Premium packages include Docker configurations (Dockerfile and docker-compose.yml), making deployment seamless on cloud providers such as AWS, Google Cloud, DigitalOcean, or Railway.
