— Jhester Carlo Cayetano —
INITIALIZING PORTFOLIO
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FULL-STACK DEVELOPER & SYSTEM ARCHITECT

Crafting Digital Experiences

I engineer high-performance web platforms, clinical systems, and progressive web applications — built with precision, driven by innovation.

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01

About Me

I'm a Full-Stack Developer with deep expertise in building end-to-end web platforms — from pixel-perfect frontends to robust, scalable backend systems.

My work spans across clinical information systems, progressive web apps, and FinTech modernization proposals. I approach every project with a systems-thinking mindset, designing not just code, but complete architectures — from ERDs and DFDs to deployment pipelines.

I believe in engineering experiences that are performant, accessible, and built to last.

System Architecture (SDLC, ERD, DFD)
PWA & Mobile Optimization
Clinical & Medical-AI Integration
FinTech Modernization & Secure Payments 
const developer = {
  name: "Jhester de Chavez",
  role: "Full-Stack Developer",
  focus: [
    "Clinical Platforms",
    "PWA Engineering",
    "System Architecture"
  ],
  passion: "Building performant,
    scalable solutions"
};
02

Tech Constellation

An interactive map of my technology ecosystem

Frontend

JavaScript (ES6+) React Next.js Tailwind CSS GSAP Framer Motion

Backend

PHP Node.js

Databases & Tools

SQL MySQL Git Vercel Railway Render InfinityFree Linux

Specializations

PWA Development Mobile Optimization System Architecture SDLC / ERD / DFD
03

Featured Projects

Immersive case studies of architected solutions

nutrideq-z472.onrender.com
Clinical AI Platform
NutriDeq
Clinical AI Telemetry System
DOST-FCT Sync
99.4% Precision
Real-time Telemetry LIVE
01 Clinical AI Platform

NutriDeq

AI Nutrition Information System & Clinical Dashboard

Engineered a Next.js/PHP clinical platform with advanced medical-AI integration and fluid, mobile-optimized fluidity. Features real-time nutritional telemetry, role-based clinical dashboards, and DOST-FCT data integration for evidence-based dietary analysis.

Next.js PHP MySQL Medical-AI GSAP
Real-time Clinical Telemetry
Role-Based Access Control
DOST-FCT Data Integration
Live Project
guroready-c12f9.web.app
100% Offline PWA
GuroReady
LET Board Exam Reviewer PWA
Mock Exam Mastery 94.8%
GenEd ProfEd Majors
Offline Engine SERVICE WORKER ACTIVE
02 Educational PWA

GuroReady

Offline-Capable Reviewer for Licensure Examination for Teachers (LET)

An interactive, offline-first progressive web application engineered for teacher licensure examinees. Features real-time mock testing, comprehensive LET subject reviewers, performance analytics, and Firebase synchronization with 100% offline capability.

PWA Firebase Service Workers JavaScript IndexedDB
100% Offline Ready
LET Review Mock Board Exams
Firebase Cloud & PWA Sync
Live Project
lagunalaketrademarks.com
FinTech Gateway
Laguna Lake Trademarks
FinTech Modernization & E-Payments
Payment Security
256-Bit AES Encrypted
SSL Compliant ERD Arch
AI Assistant UX AI ACTIVE
AI Engine: Trademark verification ready.
03 FinTech Modernization

Laguna Lake Trademarks

Secure Payment Gateways & AI-Driven Interactions

FinTech modernization proposal integrating secure electronic payment gateways and AI-driven chatbot interactions, backed by complex ERD/DFD system architecture. Designed for regulatory compliance and scalable transaction processing.

FinTech Payment Gateway AI Chatbot ERD/DFD PHP
Secure Payment Gateway
AI-Driven Chatbot UX
Complex System Architecture
Live Project
04

Let's Connect

Have a project in mind? Let's build something remarkable together.