Cesar Villarreal

Cloud Engineer · Game Design, Computer Science & Robotics Teacher

Building enterprise-grade applications and cloud infrastructure with Spring Boot, AWS, and modern technologies.

Featured Projects

A selection of my best work demonstrating full-stack development, cloud architecture, and system design.

STEM Quest

Production-deployed learning management system with mastery-based quizzes, gamified progress, and instructor analytics — solo-built and running entirely on free-tier cloud infrastructure.

React 18 TypeScript Django PostgreSQL +7 more

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Portfolio Website

The site you're looking at - Spring Boot + Thymeleaf + AWS

Spring Boot Java 21 Thymeleaf PostgreSQL +11 more

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Pawsitive Haven

A comprehensive pet management system with AI-powered assistance, featuring GPT-4o chat for pet advice, bio generation, appointment scheduling, and admin tools with security hardening.

ASP.NET Core 9 Blazor Server PostgreSQL OpenAI GPT-4o +1 more

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