Jerlo F. De Leon DJERLO

Hi, I'm Djerlo

📊 Dashboard Metrics

🚀 About Me

I'm a developer who enjoys building practical systems — ranging from full-stack web applications to lower-level software architectures and optimized infrastructure environments.

🛠️ Tech Stack

Languages & Runtime

🧠 AI & Computer Vision

Frontend

Backend & Database

🔌 APIs & Integrations

Deployment & Infrastructure

Development Tools

🌱 Currently Learning / Exploring

📈 GitHub Performance

🗂️ Portfolio & Specializations

💻 Featured Software & Capstone Projects

👁️ Attendance Monitoring System (Approved Capstone Thesis)

Developed an end-to-end full-stack computer vision ecosystem utilizing Django to automate attendance logging.

Anti-Spoofing Pipeline: Trained and engineered an anti-spoofing pipeline by fine-tuning TensorFlow and PyTorch models on the CASIA-FASD dataset (initialized with ImageNet-1K weights), achieving a 91% accuracy metric against presentation attacks.
Low-Latency Tracking: Integrated localized spatial frameworks (OpenCV, dlib, and Face Recognition) to build high-accuracy, real-time live administrative tracking dashboards.

🏥 Patient Information Management System (PIMS)

Developed a web-application for centralized hospital and clinic appointment scheduling.

Administrative Dashboard: Designed a centralized administrative dashboard aggregating real-time status matrices (tracking total admitted patients, active staff, and doctor counters), reducing manual record cross-checking by over 40%.
Dynamic Status Logic: Implemented dynamic workflow logic allowing medical staff to toggle doctor availability on demand to streamline slot reservations.
E-Commerce Payment Gateway: Integrated the PayMongo Checkout API alongside asynchronous webhooks to automate post-discharge billing, securely processing digital transactions alongside legacy over-the-counter ledger inputs.

🍽️ Catering Booking Management System

Console-based C++ environment tracking system operations around catering workflows.

Resource-Independent Design: Purpose-built in native C++ to handle complex dynamic booking logic without requiring heavy database engines, creating a lightweight, self-contained executable for off-grid operations.
Optimized Data Visualization: Built customized terminal pagination structures designed to handle a scaling matrix of active customer reservations, allowing office personnel to quickly search, filter, and flip through records sequentially.

⚙️ Infrastructure & Systems Operations

Bare-Metal Deployment: Provisioned and configured clean operating system environments across distributed school computer laboratory endpoints to support localized application staging.
Network Engineering: Implemented Layer-2 switch provisioning, secure Virtual LAN (VLAN) segmentation, and executed deep packet inspection using Wireshark to establish secure filtering architectures.
Secure Edge Access: Configured and managed isolated local server deployments utilizing Docker containers and Nginx instances, safely exposing application endpoints to the web using Cloudflare Tunnels.
Local Database Environments: Standardized local workspace efficiency by transitioning database orchestration pipelines into Laragon, managing high-density schemas via HeidiSQL and phpMyAdmin.

📈 Activity Overview

🌱 Current Focus

while (alive) {
    learn();
    build();
    improve();
}

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