Vax Ling Chei San
SYSTEM ONLINE // OPEN TO OPPORTUNITIES

FULL
STACK
DEV_

I design and build scalable admin systems, SaaS platforms, and high-performance web applications used in real production environments. Focused on performance, clean architecture, and long-term scalability.

View works

PRODUCTION SYSTEMS
I'VE BUILT

Due to client confidentiality, projects names are not disclosed. The following systems reflect real-world production systems delivered in live environments.

Multi-Outlet & Admin System
Multi-Outlet & Admin System
HTMLCSSJavaScriptBootstrapjQueryAjaxPHPCodeIgniterMySQL
Centralized system for managing multiple retail outlets from a single dashboard. Role-based access control for staff and management. Sales reporting and operational insights across locations.
Full-Stack SaaS Systems
Full-Stack SaaS Systems
ReactNext.jsExpress.jsPostgreSQLMongoDBMSSQL
Authentication, user roles, and permission control. Admin panel for managing users, plans, and activity.
Corporate Websites + CMS
Corporate Websites + CMS
WordPressCodeIgniterNext.js
Dynamic websites with flexible content management capabilities. CMS-driven pages for easy content updates by non-technical users. SEO-optimized structure and fast-loading performance. Custom admin interface for managing content and media. API-based content delivery for scalability and flexibility.

TECH_STACK

My preferred weapons of choice for building digital products. Always learning, always evolving.

CLEAN_CODE
SCALABLE_DB
PERFORMANCE
DEVOPS

Frontend

  • HTML
  • CSS
  • JavaScript
  • React
  • Next.js
  • Bootstrap
  • Tailwind CSS
  • jQuery
  • Ajax
  • Responsive Web Design

Backend

  • Node.js
  • Express.js
  • PHP
  • CodeIgniter
  • WordPress
  • REST API Development

Database

  • PostgreSQL
  • MongoDB
  • Supabase
  • MySQL

Tools

  • Git
  • GitHub
  • Vercel
  • Web Application Deployment

Professional Experience

Web Developer

Jan 2020 – Present // Ohanae (Singapore)

Building and maintaining production-grade web systems, admin dashboards, and scalable applications across multiple business domains

- Designed and developed full-stack systems including admin dashboards, CMS platforms, and internal tools

- Built and maintained backend services, APIs, and database architectures across multiple environments

- Implemented role-based access control and structured data systems for multi-user applications

- Optimized application performance, improving stability and handling large datasets in production

- Integrated third-party services including analytics (GA4), tracking (GTM), and communication tools

- Worked across modern stack including Next.js, Node.js, and React for scalable frontend and backend systems

- Managed and integrated multiple databases including PostgreSQL, MongoDB, MySQL, and MSSQL

- Collaborated with cross-functional teams to deliver reliable, production-ready systems

Senior Web Developer

Nov 2013 – Jan 2019 // Easy Asia Technologies (Malaysia)

Developed and maintained business-critical web applications and CMS platforms for production use

- Built dynamic web applications and backend systems using PHP and CodeIgniter

- Designed and implemented database-driven systems for business operations and data management

- Developed responsive user interfaces optimized for performance across devices

- Customized and extended WordPress systems including themes and plugin integrations

- Implemented asynchronous data handling (AJAX) to improve system responsiveness

- Delivered scalable and maintainable solutions in collaboration with cross-functional teams