Serverless Backend with AWS Lambda and PostgreSQL

Paolo Proni

Starting at

$

65

/hr

About this service

Summary

I design and implement serverless backends using Java, AWS Lambda, API Gateway, and PostgreSQL.
With over 25 years of software engineering experience, I focus on data consistency, maintainability, and cost efficiency.
Every project includes clean architecture, detailed documentation, and long-term reliability for production systems.

FAQs

  • Can you integrate existing APIs or databases?

    Yes, I can connect to any REST or SQL backend (PostgreSQL, MySQL, or cloud services).

  • Do you provide deployment support?

    Absolutely. I can assist with deployment on AWS Console, CLI, or CI/CD pipelines.

What's included

  • Fully functional AWS Lambda backend

    A complete Java-based backend running on AWS Lambda, integrated with API Gateway and PostgreSQL (RDS or Aurora). Includes deployment scripts, configuration files (YAML/JSON), and connection management for secure and scalable execution.

  • Database schema and SQL scripts

    Normalized PostgreSQL database schema optimized for serverless workloads, including indexes, triggers, and example SQL queries for testing and verification.

  • Technical documentation and setup guide

    Comprehensive documentation covering project structure, environment variables, deployment procedure, and maintenance steps. Delivered in Markdown or PDF format for easy integration into client documentation systems.

  • Cloud Cost Optimization Report

    Short report analyzing Lambda invocation costs, RDS instance sizing, and potential improvements for scalability and efficiency.

Example projects

http://www.contoterzi.cloud/

Skills and tools

Frontend Engineer

Software Engineer

Fullstack Engineer

AWS Lambda

AWS Lambda

Java

Java

JavaScript

JavaScript

PostgreSQL

PostgreSQL

Python

Python

Industries

IT Infrastructure