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You will get FastAPI REST APIs and Backend Development

Leandro S.Status: Offline
Leandro S. Leandro S.
Preview image

Let a pro handle the details

Buy Web Application Programming services from Leandro, priced and ready to go.
Leandro S.Status: Offline
Leandro S. Leandro S.
Preview image

Let a pro handle the details

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

Project details

I will build a secure, scalable and production-ready REST API using FastAPI and Python.

Whether you need a new backend, API integration, authentication, database connectivity or a complete backend architecture, I deliver clean, maintainable and well-documented solutions following modern development best practices.

Services include:

• FastAPI REST API Development
• Database Integration (MySQL, PostgreSQL, SQLite)
• JWT Authentication & Authorization
• OpenAPI / Swagger Documentation
• Third-party API Integration
• Docker Support
• Clean Architecture
• Performance Optimization
• Error Handling & Validation
• Production-ready Code

Every project includes clean code, structured architecture and clear communication throughout development.
Programming Languages
JavaScript, Python, TypeScript
Coding Expertise
Performance Optimization, Security, Design
What's included
Service Tiers Starter
$149
Standard
$299
Advanced
$599
Delivery Time 3 days 5 days 7 days
Number of Revisions
235
Design Customization
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Content Upload
-
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-
Responsive Design
-
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Source Code
-
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Optional add-ons You can add these on the next page.
Fast Delivery
+$50 - $200
Additional Revision
+$40
Docker Container
+$80
JWT Authentication
+$120
Database Integration
+$120

Frequently asked questions

Leandro S.Status: Offline

About Leandro

Leandro S.Status: Offline
Python Developer | AI Automation | FastAPI APIs | Data Engineering | B
Santa Rita, Brazil - 1:31 am local time
I am a Python Developer specializing in automation, backend development, REST APIs, AI integration and data solutions. I build reliable, scalable and production-ready applications that help businesses automate processes, integrate systems and make better use of their data.

My expertise includes Python, FastAPI, Go, SQL, JavaScript, TypeScript, React, Power BI and modern cloud technologies. I develop custom automation tools, API integrations, AI-powered workflows, dashboards and data extraction solutions, always focusing on clean architecture, performance and maintainability.

Whether you need to automate repetitive tasks, build a secure REST API, create business dashboards, integrate AI into your workflow or develop a complete backend solution, I deliver high-quality software with clear communication and well-documented source code.

I am committed to understanding your business needs and delivering solutions that are reliable, efficient and ready for real-world use.

Steps for completing your project

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

Delivery time starts when Leandro receives requirements from you.

Leandro works on your project following the steps below.

Revisions may occur after the delivery date.

Project Planning

I review your requirements, design the API architecture and confirm every endpoint before development starts.

Testing & Documentation

The API is tested, documented with OpenAPI/Swagger and prepared for production deployment.

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