Hi, I'm Christian Villablanca
Full-stack and mobile developer passionate about cybersecurity and penetration testing, aiming to identify vulnerabilities and strengthen digital security.
Tech Expertise
My technical skill network and core competencies
Primary Stacks
Technologies that I'm most proficient in
Javascript
Typescript
NextJS
NestJS
NodeJS
Express.js
React Native
React
MongoDB
Tailwind
Additional Skills
Technologies I have used and am familiar with
Programming Language
Framework
Library
Database & Storage
Tools
Web Server
Cloud & Hosting
AI Inference Engine
Scripting
Testing & Automation
Tech Constellation
Interactive visualization of my skill network
Career Path
My career evolution, footprints, and key accomplishments
Senior Full-stack Developer
iBoardLiving Marketplace
I focused on conducting code reviews to ensure best practices, developed a mobile version of the app using React Native, and transitioning the current repository into a monorepo using Turborepo that improved development workflows, improved security by using 2FA, HMAC and implemented centralized logging system using Pino for better monitoring and debugging. Optimized marketplace performance and other features by implementing caching and data-loading improvements using RTK and Redis and introduced a shared module to make the code more maintainable across the API, admin, web, and mobile.
React
Typescript
Redux
Redux Toolkit
Redis
Mantine
Tailwind
Vercel
NextJS
NestJS
MongoDB
Pusher
Mapbox
Twala
Bux
Dragonpay
React Native
Software Engineer
Involved in developing a betting site platform using Vite and React, built a NestJS/MySQL backend, and designed a CRM system. Utilized AWS, Docker, Chakra UI, Zustand, and React Query and others for scalability and performance.
Vite
React
NestJS
MySQL
Chakra UI
AWS
Docker
MySQL Workbench
Zustand
React Query
Full-stack Developer
TheDailyUniverse
Involved in refining the homepage's map feature, implementing an external API using Express.js, and streamlining deployment with a CI/CD pipeline for GoDaddy servers.
React
Javascript
Tailwind
Mapbox
Express.js
MySQL
Full-stack Developer
iBoardLiving Marketplace
I served as a fullstack developer at iBoardLiving, working with PHP (CodeIgniter) initially and later transitioning to React (TypeScript, Next.js, NestJS, Tailwind, and Mantine) and React Native for mobile. I actively engaged in code reviews, collaborated with senior developers on external API development. I implemented most of the core features of the app—including booking, payments, invoices, and more—across both client and admin systems, while integrating APIs such as Twala, Bux, Dragonpay, Mapbox, Docusign, and Pusher to deliver real-time functionality.
Javascript
jQuery
PHP
MySQL
Google Cloud Platform
CodeIgniter
React
Typescript
Mantine
Tailwind
Vercel
NextJS
NodeJS
NestJS
MongoDB
Pusher
Mapbox
Twala
Bux
Dragonpay
Web and Mobile Developer
I provided freelance web and mobile development services, specializing in building scalable, high-performance applications tailored to client needs. My expertise spans frontend and backend development, ensuring intuitive user experiences and seamless functionality across platforms.
Java
Firebase
Sqlite
Javascript
React
NodeJS
Express.js
MongoDB
MongoDB Compass
MySQL
MySQL Workbench
PHP
jQuery
Bootstrap
Laravel
Android Studio
Mapbox
IT Specialist
FPOSI
I worked as an IT specialist, gaining extensive experience in Level 2 support, IT operations, and desktop tool development using .BAT scripts and .NET. This role provided insights into IT infrastructure, network security, and system administration, and enhanced my skills in Microsoft Office, Active Directory, and Virtualization software.
Batch scripts
PowerShell
Visual Basic .NET
Microsoft SQL Server
Development Activity
A snapshot of my coding journey and contribution patterns across platforms
GitHub Activity
@chryzxc
Contributions
Recent Projects
Latest work showcasing technical expertise and innovative solutions
Swagger MCP Server
IDE Integration
An MCP server that can be integrated with VS Code or Windsurf that provides instant, in-IDE documentation for Swagger APIs.
AI Bug Bounty Recon Toolkit
Command Line Interface
A modular, AI-augmented command-line toolkit built for personal use in automating bug bounty reconnaissance and surface-level vulnerability scanning.
Resume Sprint
Web
Resume Sprint is an AI-powered, small, and simple resume builder designed for quick and hassle-free resume creation.
Sectrails CLI Tool
Command Line Interface
A lightweight CLI tool for fetching DNS history from the SecurityTrails API, built for personal automation and security research..
Immaculate Conception Parish Church (Guiuan)
Web
A church management system designed to streamline and organize essential parish activities such as baptisms, confirmations, masses, liturgies, weddings, and funerals.
Certifications

MongoDB
Building RAG Apps Using MongoDB

EVSU
Best in Thesis Award

EVSU