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Based in Santa Ana, Pampanga

Hi, I'm Jairoh —
Engineer & Developer

Full-Stack Developer  ·  Mobile Application Engineer  ·  Hardware-Software Integration Specialist

0Projects
3Specialties
1Engineer
ABOUT ME

Engineer Who
Builds End-to-End

Engr. John Jairoh D. Penaflor
Engr. John Jairoh D. Penaflor Full-Stack & Mobile Developer

I'm a Computer Engineering graduate from Santa Ana, Pampanga, Philippines, with a passion for building complete, intelligent systems — from database to UI, and software to silicon.

I specialize in full-stack web development, cross-platform mobile applications, and hardware-embedded systems, allowing me to take a product from concept all the way to a working, deployed solution.

TECH STACK & SKILLS
Web Dev
PHP
MySQL
Flutter
JavaScript
ESP32
Python
IoT
REST APIs
Git
Android/iOS
Cloud Deploy
EDUCATION & EXPERIENCE

BS Computer Engineering

Pampanga State Agricultural University — Santa Ana Campus

2021 – 2025

Licensed Electronics Engineer

ECE Board Passer — Professional Regulation Commission, Philippines

2025

Full-Stack & Mobile Developer

Built real-world systems: retail POS apps, IoT digital displays, smart hardware, and web platforms as part of CodeCircuit Engineering team.

2024 – Present
Full-Stack Web Mobile Apps Hardware/IoT Embedded Systems
MY WORK

Featured Projects

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WHAT I OFFER

My Services

01

Web Development

Custom web applications, dashboards, admin panels, REST APIs, and database design using modern frameworks.

  • Frontend & Backend
  • Database Architecture
  • API Integration
  • Cloud Deployment
02

Mobile Applications

Cross-platform iOS & Android apps built with Flutter — from MVP to production-ready products.

  • iOS & Android Apps
  • Flutter Development
  • Push Notifications
  • Offline Support
03

Hardware & IoT

End-to-end IoT solutions from firmware to cloud — ESP32 systems, sensor integration, and data pipelines.

  • ESP32 / Arduino Systems
  • Sensor Integration
  • Embedded Firmware
  • PCB Circuit Design
REACH ME

Let's Work Together

Fill out the form and I'll get back to you as soon as possible.

Contact Information

Location

Municipality of Santa Ana, Pampanga
Central Luzon, Philippines

Email

jairoh.penaflor519@gmail.com

Availability

Monday – Friday: 7:00 AM – 5:00 PM