Skip to content
View RJ-cyber23's full-sized avatar
🌴
On vacation
🌴
On vacation

Block or report RJ-cyber23

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
RJ-cyber23/README.md

Hi there! 👋 I'm Rey John B. Marcelo (RJ)

Typing SVG

🎓 BS Information Systems Student | 💻 Backend Dev | 🐧 Linux Enthusiast Passionate about building software and mastering real-world development principles.


🛠️ Currently Building

🛡️ Security-Driven Barangay Management System

  • Role-Based Access Control (RBAC): Implementation of granular administrative access levels to ensure data privacy and system integrity.
  • Secure Authentication: Utilizing industry-standard security protocols for hardened user login and session management.
  • Input Sanitization: Programmatic protection against common vulnerabilities like SQL Injection and Cross-Site Scripting (XSS).
  • Database Integrity: Features automated SKU generation through MariaDB triggers and complex views to ensure data consistency.

🤖 AI Integration & Advanced Data Retrieval

  • Retrieval-Augmented Generation (RAG): Developing a prototype assistant that integrates Groq API with MariaDB’s vector search capabilities.
  • Semantic Search Engine: Moving beyond basic keyword matching by using Sentence Transformers to retrieve information based on contextual meaning.
  • Automated Categorization: Leveraging AI models to analyze and automatically classify incoming community complaints.

🧠 Tech Stack

Languages & Core:

  • Java: Spring Boot (Backend Logic & Security)
  • Databases: MariaDB & MySQL (Relational Modeling, Vector Search & Optimization)
  • Web: HTML5, CSS3, JavaScript (Vanilla-first approach)

Tools & Environment:

  • OS: Debian Linux (Minimalist, Terminal-driven workflow)
  • DevOps: Docker (Containerization for platform-independent deployment)
  • Security: Vulnerability scanning (Metasploit, OWASP ZAP) & Pentesting basics

💻 Languages and Tools


"Why use a framework if I haven’t mastered what’s under the hood?"

📬 Let's Connect:

Pinned Loading

  1. Inventory-System-ERD-Version-2.0 Inventory-System-ERD-Version-2.0 Public

    📦 Inventory System V2.0 - Enterprise ERD & Schema Welcome to the core architectural blueprint for Inventory System V2.0. This repository contains the high-level logic and database schema for a prof…

  2. Sales-Management-System Sales-Management-System Public

    This repo provide a structured database for Micro Businesses that can handle track and control of the products also sales and stock movement , and this project is not yet finish.

  3. community/community community/community Public

    Public feedback discussions for: GitHub Mobile, GitHub Discussions, GitHub Codespaces, GitHub Sponsors, GitHub Issues and more!

    Ruby 8.3k 3.7k

  4. POS_webapplication POS_webapplication Public

    POS WebApplication Training

    PHP 1

  5. POS-System_sql POS-System_sql Public

    POS database design

    1

  6. SQL_Invenory_System SQL_Invenory_System Public

    This is for Scalable Inventory Database Design