You will get a production-ready REST API with AI integration
Project details
I build production-ready REST APIs with AI integration
using Java (Spring Boot), Node.js (NestJS, Hono, Express),
and any SQL or NoSQL database. Every API I deliver includes
clean architecture, JWT authentication, full documentation,
and source code.
What sets this project apart: I don't just connect endpoints
— I design APIs that scale. With 7 years of experience in
distributed systems, AWS, and Kafka, I bring senior-level
thinking to every project, regardless of size.
AI integration is a core specialty here. Whether you need
OpenAI or Claude connected to your backend for chat,
summarization, classification, or automation — I handle
the full pipeline from prompt engineering to API response.
Deliverables include: working API, database setup,
authentication, AI integration (if applicable),
Swagger/Postman documentation, and deployment-ready code.
Fast delivery. Clean code. No scope creep.
using Java (Spring Boot), Node.js (NestJS, Hono, Express),
and any SQL or NoSQL database. Every API I deliver includes
clean architecture, JWT authentication, full documentation,
and source code.
What sets this project apart: I don't just connect endpoints
— I design APIs that scale. With 7 years of experience in
distributed systems, AWS, and Kafka, I bring senior-level
thinking to every project, regardless of size.
AI integration is a core specialty here. Whether you need
OpenAI or Claude connected to your backend for chat,
summarization, classification, or automation — I handle
the full pipeline from prompt engineering to API response.
Deliverables include: working API, database setup,
authentication, AI integration (if applicable),
Swagger/Postman documentation, and deployment-ready code.
Fast delivery. Clean code. No scope creep.
Programming Languages
JavaScript, Python, JavaCoding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$75
|
Standard
$150
|
Advanced
$280
|
|---|---|---|---|
| Delivery Time | 4 days | 5 days | 7 days |
Number of Revisions | 1 | 2 | 4 |
Number of Pages | 0 | 0 | 0 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$35 - $130
Additional Revision
+$15Frequently asked questions
About Lucas
Lead AI & Backend Engineer | LLM Orchestration, AWS & Node JS
Sao Paulo, Brazil - 4:43 pm local time
Core stack: Java (Spring Boot, Quarkus), Node.js, NestJS, AWS, Azure, Kafka, microservices.
Previously served as Tech Lead at a major Brazilian financial institution, leading high-demand systems and engineering teams. I bring both hands-on execution and architectural thinking to every engagement.
Steps for completing your project
After purchasing the project, send requirements so Lucas can start the project.
Delivery time starts when Lucas receives requirements from you.
Lucas works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements review and architecture design
Analyze your requirements and deliver a technical architecture plan with endpoint structure, database schema and AI integration approach for your approval.
API development and AI integration
Build the REST API with all agreed endpoints, authentication, database setup and AI features. Code will be clean, documented and follow best practices.