Mark Wendell Aquino

Full-stack Developer focused on secure, scalable web applications

Building real-world systems with hands-on experience in React, Next.js, and modern backend technologies. Strong focus on application security including JWT authentication, role-based access control, and OWASP-aligned practices.

About

I'm a builder at heart, focused on creating real-world systems that solve actual problems. My journey in software development is driven by a deep curiosity to understand how systems work at every layer—from the database to the user interface.

With hands-on experience across modern JavaScript frameworks like React and Next.js, as well as traditional backend technologies like PHP and Node.js, I bring a versatile approach to development. I believe in choosing the right tool for the job while maintaining clean, maintainable code.

Security is not an afterthought—it's foundational to everything I build. From implementing proper authentication with JWT and RBAC to following OWASP security guidelines, I ensure that applications are not just functional, but also secure and reliable for users.

I'm constantly exploring new technologies, contributing to projects, and learning about the latest developments in web security, performance optimization, and emerging tech like AI and blockchain.

Projects

A selection of my work showcasing full-stack development and security expertise

Smart Flood Relief System

Disaster response system with IoT-based real-time sensors and dashboards. Includes AI-powered relief recommendations with focus on real-time monitoring and system reliability.

Next.js
IoT
AI
Real-time Dashboard

SafeTrip Explorer PH

Secure tourism web application with JWT authentication, RBAC, and OWASP practices. Includes input validation, CSRF protection, HTTP security headers, and password hashing. Tested with OWASP ZAP.

React
JWT
RBAC
OWASP
Security

Biometric & QR Code + RFID Student Check-In System

C# + SQL Server + Arduino integration with fingerprint authentication, QR scanning, and RFID integration. Reduced logging time by 50%.

C#
SQL Server
Arduino
Biometrics
RFID

Interactive Game – Matching Bird Dance

Time-based matching game with score tracking using Java and Firebase Realtime Database.

Java
Firebase
Realtime Database
Game Dev

Online Restaurant Ordering System

PHP + MySQL + Bootstrap application with reward points and customer reviews. Handles 100+ mock transactions.

PHP
MySQL
Bootstrap
E-commerce

Movie Ranking Web App

React + Appwrite application that fetches and ranks movies from live API.

React
Appwrite
API Integration

React E-commerce

E-commerce platform with React, Tailwind, DaisyUI, React Router, and React Slick for product navigation and responsive UI.

React
Tailwind
DaisyUI
React Router

MyAiChatBot

AI chatbot integrated with OpenAI, Google AI SDK, and React AI SDK using Next.js, Tailwind, and Framer Motion.

Next.js
OpenAI
Google AI
React AI SDK

MyBlockChainApp

Decentralized transaction demonstration using React, TypeScript, Thirdweb, and Ethers.js.

React
TypeScript
Thirdweb
Ethers.js
Blockchain

Skills

Technologies and tools I work with

Languages

JavaScript
TypeScript
Java
C#
PHP
Python

Frontend

React
Next.js
Tailwind CSS
DaisyUI
Framer Motion
React Router
React Slick

Backend

Node.js
Express
NestJS
PHP
Firebase

Databases

MySQL
MSSQL
PostgreSQL
MongoDB
SQL Server
Appwrite

Security

JWT
RBAC
OWASP
OAuth 2.0
CSRF Protection
Input Validation
Password Hashing

Tools & Other

Git
Arduino
Thirdweb
Ethers.js
OpenAI SDK
Google AI SDK
React AI SDK

GitHub Activity

Consistent contributions and real-world development work

Developer Stats

Developer Stats

Total Commits

1,200+

Stars Earned

50+

Repositories

30+

View Profile

Experience

Professional contributions and volunteer work

Codebility

Volunteer Full-Stack Developer

Volunteer Position
  • Contributed to full-stack development projects using modern web technologies
  • Collaborated with team members to deliver secure and scalable applications
  • Applied best practices in code quality, security, and performance optimization

Security & Networking

Key knowledge areas in application security and network infrastructure

OWASP Security

OWASP Top 10
Security Testing
Vulnerability Assessment
OWASP ZAP

Authentication & Authorization

JWT Authentication
RBAC
Password Hashing
Session Management

Network Security

TCP/IP
Firewall Configuration
HTTP Security Headers
CSRF Protection

Penetration Testing

Security Audits
Input Validation
XSS Prevention
SQL Injection Prevention

Contact

Open to discussing new projects, opportunities, or collaborations

markwendellaquino@gmail.com