Sajed Lopez Mendoza

Technologies

Frontend Development

Backend Development

Python

PHP / Laravel

PHP / Native

Java

REST API

Node.js(Express)

.NET

C++

C#

Flask

Software / Applications

Android Studio

Mobile development IDE

EEZ Studio

UI dev for Capacitive LCD

Nextion Editor

UI dev for Nextion LCD

PyCharm

Python IDE

Fritzing

Circuit prototyping tool

VS Code

Web and general coding IDE

Arduino IDE

Microcontroller programming

Visual Studio

Desktop and .NET development

NetBeans

Java development IDE

Fusion 360

3D modeling & printing

Label Studio

AI data labeling tool

LabelImg

Image annotation tool

Thonny IDE

Python IDE for Raspberry Pi

RealVNC

Remote desktop control

Machine Learning / AI

Computer Vision

Object Detection: YOLO, TensorFlow models

Image Segmentation: YOLO

Face Recognition: Haar Cascades, FaceAPI, Dlib

OCR: Tesseract, EasyOCR

Deep Learning

Frameworks: TensorFlow, PyTorch

Architectures: CNNs, RNNs

ML Models

Scikit-learn: Classification, regression

Random Forest: Ensemble modeling for structured data

Linear Regression: Predicting numeric trends

Microcontrollers / Boards

Arduino

ESP8266 / ESP32

Raspberry Pi

Databases

MySQL

SQLite

Firebase

MongoDB

DevOps / Protocols

Projects

Smart Cabinet
View Photos (1)

Smart Cabinet

<p>An advanced IoT-enabled secure storage solution with fingerprint authentication and automated mechanisms.</p>

C++ESP-NowArduino IDE
View on GitHub
IoT Rice Dryer
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IoT Rice Dryer

IoT-enabled Rice Dryer system with ESP32 hardware and Android application for remote monitoring and control via Firebase Realtime Database.

C++Android StudioArduino IDEESP32ESP8266FirebaseKotlin
View on GitHub
ToolEase
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ToolEase

A modern, open-source RFID-based tool leasing and inventory management system for educational, industrial, and makerspace environments.

C++FlutterESP32
View on GitHub

CNC Jog Trainer

CNC machine training and control system featuring Arduino-based hardware control and Raspberry Pi GUI interface. This project combines robust stepper motor control, limit switch monitoring, and a modern touchscreen-optimized graphical interface for educational and practical CNC operations.

PythonGRBLCustomTkinterArduinoC++
View on GitHub
IoT Smart Fan
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IoT Smart Fan

SmartFan is a comprehensive IoT ecosystem that transforms any standard stand fan into an intelligent, automated climate control system. Built with a dual-ESP architecture (ESP8266 + ESP32) and a modern Android app, it delivers seamless temperature-based automation, real-time monitoring, and cloud integration.

C++JavaAndroid StudioArduino IDEESP32ESP8266
View on GitHub

Laong Laan

Heritage / cultural project

JavaAndroid Studio
View on GitHub
Creative Gallery
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Creative Gallery

Art and creative portfolio gallery

LaravelPHPBladeHTML5MySQLBootstrap
View on GitHub

Child Presence Detection Alert

AI-powered child detection system

JavaAndroid Studio
View on GitHub
Ammonia Auto Control
View Photos (4)

Ammonia Auto Control

Automated ammonia monitoring system

C++LaravelESP32BootstrapFirebase
View on GitHub

Smart Water Guard

Smart water monitoring IoT device

JavaAndroid StudioFirebase
View on GitHub
I Buy It
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I Buy It

E-commerce shopping application

PHPLaravelJavaAndroid Studio
View on GitHub
Baby Cradle
View Photos (4)

Baby Cradle

Smart baby cradle IoT project

JavaAndroid StudioFirebase
View on GitHub
Blood Reserve
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Blood Reserve

Blood bank reserve management system

LaravelBootstrapMySQL
MindBlessed Online Clothing Store
View Photos (11)

MindBlessed Online Clothing Store

E-commerce clothing store

PHPBootstrap

Dataset Fixer

Tool for fixing and cleaning datasets

Python
View on GitHub

Soil Tester

IoT-based soil testing system

JavaAndroid StudioFirebaseOpenAI API
View on GitHub

Educational Assessment

Assessment platform for education

LaravelPHPMySQLface-api
View on GitHub

Umbrella Holder

An intelligent microcontroller-based dryer for up to 6 umbrellas, featuring PID-controlled heating, automated blower operation via solid state relays, and smart auto-start functionality with IR sensor and door safety interlocks. Designed for reliability and ease of use in public or private spaces.

C++Arduino IDE
View on GitHub

Coconut Dryer

Coconut Dryer is an arduino-based embedded system that provides automated temperature, humidity, and moisture control for efficient drying operations using PID control algorithms and real-time sensor monitoring.

C++Arduino IDEPIDSolar Powered
View on GitHub
IoT Bike Tracker
View Photos (2)

IoT Bike Tracker

An advanced, solar-powered GPS bike tracker with real-time location monitoring and GSM communication.

C++SIM800LNEO-6M GPSSolar Powered
View on GitHub
Finance Fusion
View Photos (5)

Finance Fusion

FiFo is a voice-enabled personal budgeting Android app that helps users track expenses, monitor income, and achieve savings goals. It’s simple, speech-powered, and designed to build smarter financial habits through reminders, forecasts, and budget controls.

JavaAndroid StudioSpeech RecognitionText-to-Speech
View on GitHub

Peso Exchanger

Currency exchange application

LaravelPHPFirebaseBootstrap
View on GitHub

About Me

Sajed Lopez Mendoza
QPPD

Hello! I'm Sajed Lopez Mendoza, a developer based in Quezon Province, Philippines.

I started my journey in mobile development and expanded into full-stack web development, machine learning, and real-time embedded systems.

I'm passionate about building smart, efficient solutions - from interactive dashboards and AI-powered applications to IoT systems and hardware prototypes.

  • Age: 30
  • Location: Unisan, Quezon Province
  • Status: Available
  • Contact: +63 961 293 6212

Work Experience

Full Stack Developer – KeySolutions Inc.

Pasig City | Onsite

  • Installed and configured AVL GPS tracking devices for business vehicles (trucks, vans, sedans).
  • Managed Ubuntu-based GPS tracking servers ensuring stability and accuracy.
  • Built Android applications for real-time GPS tracking of vehicle status and behavior.
  • Developed Android apps for businesses.
  • Assisted in developing web application for client use.
  • Presented app features and system performance in meetings with supervisors, managers, and the CEO.

Android Development Trainer – Infinitech Training Center

Lucena City | Onsite

  • Led Android development training for students with beginner-level coding skills.
  • Taught app fundamentals and 2D game development using Android Studio.
  • Guided students in completing apps and obtaining certifications.
  • Provided mentorship, practical demos, and debugging assistance.

Freelance Developer – QPPD (Quezon Province Programmers/Developers)

Remote / Project-based

All-around development & hardware integration

  • Developed full-stack systems using modern frontend, backend, and databases.
  • Built real-time web and mobile apps with AI and ML.
  • Created embedded systems using microcontrollers and Raspberry Pi.
  • 3D modeled and printed custom enclosures and hardware parts for prototypes.
  • Installed and maintained solar panel systems and battery storage solutions.
  • Assembled and tested wind turbine generators for alternative energy setups.
  • Performed MIG and arc welding for mechanical and enclosure fabrication.
  • Repaired and maintained laptops, desktops, and Android phones.

Get in Touch

Want to inquire or ask a question? Reach out!