You will get OpenAI and Gemini AI Integration

Let a pro handle the details

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

Let a pro handle the details

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

Project details

I will integrate OpenAI or Google Gemini into your application to add intelligent AI features.

Whether you need AI chat, assistants, document analysis, prompt engineering, automation or custom workflows, I build secure and scalable integrations using modern APIs.

Services include:

• OpenAI API Integration
• Google Gemini API Integration
• AI Chatbots
• AI Assistants
• Prompt Engineering
• Document Analysis
• AI Workflows
• API Integration
• Backend Development
• Production Deployment

Every solution is designed for performance, security and easy maintenance.
Programming Languages
JavaScript, Python, TypeScript
Coding Expertise
Performance Optimization, Security, Design
What's included
Service Tiers Starter
$199
Standard
$399
Advanced
$799
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
Optional add-ons You can add these on the next page.
Fast Delivery
+$75 - $250
Additional Revision
+$50
Prompt Engineering
+$80
Document AI
+$150
Conversation Memory
+$180

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 - 3:17 pm 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

Review requirements and design the best AI solution before development.

AI Integration & Testing

Implement, test and optimize the AI integration before final delivery.

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