Zapopan, Jalisco, Mexico

Software Developer building digital products

I build web applications, APIs, and digital products — from a booking SaaS to mobile apps with OCR. I enjoy solving real problems and taking projects from start to finish.

Backend & APIsMobile appsSaaS productsDigital health
Octavio Chong
About

Code with context

Understand the problem before choosing the stack.

I'm a software developer at UTJ, but I've been building real things for a while: production backends, mobile apps, biometric systems, and public health tools.

What matters most to me is understanding the problem before picking the tech. I work well on a team, but I also like owning a project end to end — requirements, database, API, and deployment.

Stack

Technologies I work with

From backend to frontend, databases, and deployment.

Backend

Java
Spring Boot
Node.js
Express.js

Frontend

Angular
React
Next.js
TypeScript
JavaScript

Data & DevOps

SQL
Docker
Git
Cloud
Projects

Things I've built

From production SaaS to health prototypes and mobile apps.

frontbookpay-production.up.railway.app/
Book&Pay
Manually coordinating appointments, schedules, and deposit payments.

Book&Pay

Multi-tenant SaaS platform for online bookings. REST backend with availability rules, conflict detection, and Stripe Connect payments. Next.js frontend.

Node.jsExpressPostgreSQLStripeNext.js
Bill Splitter — screen 1
Bill Splitter — screen 2
Splitting a restaurant bill always ends in confusing math.

Bill Splitter

iOS Flutter app that scans receipts with OCR (Apple Vision), detects items, and calculates what each person owes — with proportional tips and bilingual support.

FlutterDartApple VisioniOS
CIE-11 ECT Input
CIE-11 ECT Input
Clasificar diagnósticos según el estándar internacional CIE-11.

CIE-11 ECT Input

Prototipo en Angular con el Embedded Coding Tool de la OMS. Input para consultar miles de códigos diagnósticos con búsqueda integrada a la API oficial.

AngularTypeScriptREST API
www.edificacionesespecializadas.com.mx/
Edificaciones Especializadas

Edificaciones Especializadas

Modern, responsive landing page for a construction firm. Service sections and visual portfolio, optimized for mobile.

TypeScriptReactCSS
X
O
X
O

El Gato

Tic-tac-toe game in Java with object-oriented architecture. Interactive board, move validation, and win detection.

JavaOOP
Journey

From university to production code

Experience, studies, and certifications — each in its place.

Experience

Work with real clients and products in production.

Frontend Developer — CIE-11

Ministry of Health

2026 – Present

Professional internship building Angular interfaces for disease classification with CIE-11 and REST integration.

Backend Engineer — Booking SaaS

Freelance / Book&Pay

2026

Multi-tenant backend with PostgreSQL, availability engine, and Stripe payments.

Backend Developer

MyAgClock

2025 – 2026

HR platform for U.S. agricultural operations — scheduling, crew management, and reports in Java + Spring Boot.

Software Developer — Biometric Verification

Transportation Company

2025

Fingerprint reader system for ~300 operators across 4 yards. Deployed in production.

Education

Academic training in progress.

Software Development Engineering

Universidad Tecnológica de Jalisco

Expected 2027

Software architecture, OOP, databases, algorithms, and web development.

Certifications

Complementary training certified by Mexico's SEP.

Full Stack Developer

Secretaría de Educación Pública

2025

Full stack development: frontend, backend, databases, and deployment.

Project Development Methodology

Secretaría de Educación Pública

2025

Management and methodology for the software project lifecycle.

Leadership

Entrepreneurship and personal projects.

Founder & Developer

PanComido

2025

Restaurant waitlist startup. Presented at Tec de Monterrey, Chihuahua campus.

Contact

Let's build something together

If you're looking for someone who gets both product and code, reach out.

Zapopan, Jalisco, Mexico