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rexo / portfolio
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Full-Stack Engineer • Indonesia (UTC+7)

Rexo

Bridging robust MVC foundations in Laravel & CodeIgniter 4 with high-performance architectures in React + Java Spring Boot.

Having cultivated extensive experience building real-world web platforms, custom CMS engines, and interactive applications, I expanded into enterprise REST API architectures with Java Spring Boot and modern React & Three.js frontends—amplified daily by AI code copilots (OpenCode & Google Antigravity).

Solid Amethyst Monolith
Three.js PBR Solid Drag to interact
Stack Evolution

PHP → Java + React

Transitioning from monolithic MVC architectures (CodeIgniter 4 / Laravel) to decoupled Java Spring Boot REST services with reactive React UIs.

CI4 / Laravel Java Spring React
AI Engineering

Antigravity & OpenCode

Harnessing Google Antigravity for subagent-driven coding workflows and OpenCode for high-velocity refactoring and contextual code synthesis.

Agentic Dev Pair-Coding Refactor
Interactive 3D

Three.js & Tailwind

Crafting lightweight WebGL viewports, spatial physics, clean responsive layouts, and accessible component architectures.

Three.js Tailwind PBR Shaders
System Telemetry

Profile Status

Domain rexxxxx.my.id
Local Time --:--:-- WIB
Core Base CI4 • Laravel • Spring
15+ Projects • Production Delivered

01. Overview

Background & Engineering Philosophy

From Foundations to Enterprise Scale

My journey into software development started with hands-on PHP mastery through CodeIgniter 4 and Laravel. During this formative period, I designed custom Content Management Systems (CMS), web-based event photobooths, database schemas, and tailored landing pages with high conversion focus.

In Q2 2026, driven by the desire to build highly concurrent, distributed, and enterprise-grade software, I executed a focused engineering shift into the Java Spring Boot ecosystem for scalable backend APIs and microservices, paired with React.js and Three.js for interactive, modern frontends.

As software engineering moves rapidly into the AI era, I leverage AI code-assistants—specifically OpenCode and Google Antigravity—not just as autocomplete tools, but as conversational pair-programmers for complex architectural refactors, edge-case testing, and accelerated delivery.

Core Engineering Pillars
MVC & Relational Depth
Deep roots in Laravel & CodeIgniter 4 query optimization.
Scalable Spring Boot APIs
Spring Security, JWT, Hibernate JPA, and Microservices.
AI-Augmented Velocity
Prompt-driven refactoring with Antigravity & OpenCode.

02. Evolution

Engineering Progression & Journey

From Foundations to Present Day
Phase 01 • Foundations

The PHP & MVC Era

Mastered full-stack web applications using CodeIgniter 4 and Laravel. Developed event photobooths, custom CMS panels, responsive styling with TailwindCSS, and relational database systems (MySQL).

CodeIgniter 4 Laravel MySQL TailwindCSS Python Scripts
Phase 02 • Q2 2026 Pivot

React & Java Spring Boot

Executed a major architectural expansion toward high-throughput, enterprise-ready microservices with Java Spring Boot (Spring Security, JPA, REST) while modernizing the client tier with React and Three.js 3D.

Java Spring Boot React.js Three.js PostgreSQL Microservices
Phase 03 • Present

AI-Augmented Engineering

Supercharging daily engineering routines with AI code copilots: using Google Antigravity and OpenCode for agentic task breakdown, instantaneous bug localization, and automated test scaffolding.

Google Antigravity OpenCode Prompt Engineering Agent Automation

03. Stack

Technologies & Capabilities

Comprehensive Skill Breakdown

Backend & APIs

Java Spring Boot Laravel CodeIgniter 4 RESTful APIs Node.js Express.js Python

AI Code Assistants

Google Antigravity OpenCode Prompt Engineering Agentic Workflows Automated Testing

Frontend & 3D

React.js Three.js TailwindCSS TypeScript JavaScript (ES6+) Alpine.js

Data & Infrastructure

MySQL PostgreSQL MongoDB Docker Git / GitHub Vercel

04. Works

Selected Projects & Case Studies

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05. Visuals

Project Visual Snapshots

Click any preview thumbnail to inspect high-resolution screenshots.

06. Connect

Let's Work Together

Whether you need scalable enterprise API architectures with Java Spring Boot, full-stack MVC applications, or modern interactive React frontends, I'm ready to collaborate: