About Me

I am a Full-Stack Web Applications Engineer with 18 years of experience designing and building scalable web applications. I have a long-standing passion for open-source technologies, working across multiple stacks and frameworks to build reliable backend services and modern front-end applications. While my early career was grounded in the LAMP ecosystem, my work today spans a broader range of open-source platforms and cloud-native technologies.

Over the years, I have worked on a wide range of web platforms, designing and implementing features that support day-to-day business operations, system integrations, and high-volume data processing. I have strong experience in PHP and Symfony-based architectures, and in recent years have expanded into NodeJs, TypeScript, and NestJS to build modern service-oriented applications.

I have been an advocate of open-source technologies since my college years, and continue to build systems using open and cloud-native tools. My work includes building and maintaining distributed services using RabbitMQ, PostgreSQL, Docker, AWS S3, while integrating observability and monitoring with OpenTelemetry and CI/CD pipelines using Buildkite.

While my primary strength is in backend and system design, I also work across the full stack and enjoy building modern interfaces using React and other JavaScript frameworks.

In my spare time, I build personal projects using React, NodeJs, NestJs, React Native & Electron to explore cross-platform desktop applications.

Currently based in Melbourne, Australia, I am interested in building scalable backend systems, distributed services, and full-stack applications that solve real business problems.

Experiences

Kmart

April 2025 - Currrent

Software Engineer

• Supported store integrations with the Fulfilment Application System using PHP (Symfony), NestJS, Nodejs, TypeScript and PostgreSQL
• Maintained, and optimized backend services to ensure scalability, reliability, and performance
• Designed and delivered new features aligned with business and operational requirements
• Managed end-to-end CI/CD pipelines and deployment workflows using BuildKite
• Applied foundational DevOps practices within Amazon Web Services (EC2, S3, CI/CD workflows)
• Delivered scalable features supporting daily fulfilment and operational workflows
• Managed cloud-based deployments and infrastructure operations within AWS K8s environments

Catch.com.au

Feb 2024 - April 2025

Software Engineer

• Add new features on existing internal system that is used by Customer Service (PHP Symfony, NestJS, Nodejs, TypeScript and PostgreSQL)
• Debug/Fix Warehouse Service Applications (PHP, NestJS, Nodejs, Typescript, PostgreSQL)

Social Pinpoint (Harvest Digital Planning)

May 2016 - Aug 2023

Software Engineer

• Implement web based tools and feature for existing product platform, using PHP, jQuery, CSS3, LESS
• Implement front-end technology such as jQuery Datatable, VueJS, Amcharts
• Enhance existing tools and feature to cater clients needs.
• Working with Agile Development and Git Workflow.
• Knowledgeable in Grunt Task runner and NPM
• Implement a simple bash script to deploy testing website on development environment.
• Experienced in JIRA and Bitbucket.
• Implement Doctrine Migrations for the current back-end application
• Work with migration of data from 3rd party source.

Astore Pte Ltd

Jan 2015 - Feb- 2016 (Singapore)

Senior Software Engineer

• Setting up and configuring an AWS EC2 Server (Linux-CentOS).
• Installing and configuring required applications on AWS EC2 such as MySQL, Apache, PHP and SVN.
• Configuring Apache Server, based on the requirements of the proposed Web Applications.
• Analyzing and identifying limitations on the current system.
• Providing logical solutions that will be implemented for the new system.
• Initial Database design and implementation.
• Implement codes both front end and back end Web Application using Codeigniter, MySQL, Angularjs, jQuery, jQuery DataTable, Bootstrap 3. (http://www.spaceship.com.sg)
• Create a RESTFul Web service for Mobile App for delivery module in the system.

STAC Genesis Pte Ltd

Jul 2014 - Dec 2014 (Singapore)

Senior Web Applications Developer

• Responsible for code implementation using PHP, jQuery, Bootstrap (LAMP Stack) and AWS S3 of a Online Mailer System.

Entrust Network Pte Ltd

Oct 2010 - Jul 2014 (Singapore)

IT Assistant Manager | Web Applications Developer

• Fixed bugs and enhanced the old School Management System.
  • Enhance & Fix SQL query used in searching existing data.
  • Create an Advance Student Class search feature for front end user.
  • Maintenance and Bug fixes of the old current system.
  • Extracting data used in Report.
• Revamping an old School Management System, from PHP 4 to Zend Framework 1.
  • Requirement gathering for the proposed enhanced system.
  • Designing and improving business process from the old system.
  • Designing Database based on the new enhancement.
  • Implementing using Zend Framework 1, MySQL, jQuery, HTML, CSS.
  • Consultation, Website Enhancements and Maintenance.
  • Researched web technologies that will greatly help user experience.
• Creating an Event Management System using Zend Framework 1
  • Requirement Analysis / Planning
  • Database Design
  • Code implementation both front end and back end using Zend Framework 1, jQuery, Bootstrap & MySQL.
  • Implementation of payment merchant gateway (Telemoney).
• PSD to HTML Conversion and implementing using WordPress.
• Installation of Eshop plugin for Wordpress and implementation of wordpress theme to meet clients needs.
• Creation and Modification of Wordpress plugins.
• PSD to HTML Conversion for customers EDM Newsletters.
• Preparation of data to use for the email blast using excel and PHP Scripts.
  • Managed 300,000 emails to be used in email marketing.
• Website Migration & Deployment (Linux - Dedicated & Shared hosting).
• Meeting-up with client for requirements gathering and consultations.
• Website Module Modifications and Enhancements.
• Macro Excel scripting that is used by the customers Accounting Department.
• Troubleshoot issues & bugs based on customer’s requests.

RJ Webdesigns Services

Nov 2008 - Oct 2010 (Philippines)

Software Web Developer

• PHP Web Development ( Front End / Back End ) using CakePHP.
• Development / Customizing CMS ( Wordpress, PrestaShop, ModX ).
• Implement a PHP script that crawls website and mine data.
• Developed a firefox toolbar using native Javascript and firefox XUL
• Creating a firefox toolbar (XUL) for a specific client requirements
• Linux Administration.

iComm Intl Inc

Jul 2006 - Nov 2008 (Philippines)

Junior Software Engineer

Involve mostly on research and development open source projects internal software projects.

• Involve in code implementation of Customer Relations Management System using Java EE, GWT-Ext, MsSQL& MySQL.
• Researching Open source technology that may help on the day-to-day processes of the business.
• Front End Chat Interface implementation for Live Chat support System using native Javascript, JSON , HTML and CSS.
• Implementation of Chat Logs Backend Administrator – CakePHP, MySQL, Javascript, HTML & CSS.
• Create an Online Job Application Portal and a backend web system to administer all job applications using PEAR PHP, MySQL, Javascript, HTML & CSS.
• Create a Web Data Crawler Script that will scrape information via automated post request

Booom Interactive

Oct 2005 - Jul 2006 (Philippines)

PHP Developer

Code implementation of Online Music School System