Core developer on the Osdire services marketplace.

• Developed and maintained core marketplace functionality — order and task management, real-time messaging and the Resolution Centre — with Laravel, Vue.js and TypeScript.
• Expanded automated regression coverage with PHPUnit and Vitest across search, sorting, timezone/DST handling and media processing in a large production codebase.
• Improved stability, performance and maintainability by refactoring legacy components, resolving production issues and reducing technical debt.
• Optimised image delivery and SEO with responsive srcset generation, CloudFront media delivery and lazy/priority loading, improving Core Web Vitals (LCP, CLS).
• Worked with product owners, designers and non-technical stakeholders to define requirements, prioritise work and ship on schedule.

• PHP
• Laravel
• Vue.js
• TypeScript
• MySQL
• PHPUnit / Vitest
• Jira

Backend and fintech development for a digital agency.

• Led backend development of a Loan Management System using CodeIgniter and MVC architecture.
• Developed and maintained a real-time trading platform (Vue.js) and mobile trading app (Swift), integrating WebSocket APIs for live fintech data and training simulators.
• Built secure e-commerce features, including payment gateways and user authentication, with WordPress and Laravel.

• PHP
• CodeIgniter
• MySQL
• Vue.js
• Swift
• WebSockets

Enterprise and government systems, IoT and document automation.

• Spearheaded 5–6 IoT and CRUD application projects (C#, .NET, React, Vue.js, Laravel) for enterprise clients including China Construction Bank International (CCBI) and Towngas.
• Revived an intelligent passport face-crop app with a facial-tracking API (clmtrackr.js) for the HKSAR Immigration Department.
• Developed a Retek REST API for Watsons' online retail system with Java Spring and Hibernate, improving performance and delivering within 3 months.
• Provided vendor support and backend solutions for document-automation systems; completed a full system migration for HK Customs within a 6-month deadline.

• C#
• .NET
• PHP
• Laravel
• React
• Vue.js
• REST
• GraphQL
• Autonomy IDOL

Web platforms and CRM for a real-estate group (Hong Kong Homes).

• Maintained a proprietary real-estate system featuring 100+ customised CRMs and e-flyers.
• Built real-estate portals, CRM tools and online booking systems in PHP and Laravel.
• Delivered 3–4 high-quality responsive front-end websites (jQuery, SASS, HTML, CSS).
• Designed and managed a schema of ~100 database tables with documentation, UML and ER diagrams.

• PHP
• Laravel
• MySQL
• jQuery
• Bootstrap
• SASS
• CentOS

Web and fintech development.

• Built CRUD applications with PHP and MySQL.
• Contributed to fintech app development (Objective-C) and built a web trading portal (PHP).
• Enhanced an HSI futures prediction-analysis system with trading signals (VWAP, MSA, SMA, RSI, MACD).

• PHP
• MySQL
• Objective-C
• WordPress

Web development and digital design.

• Developed and maintained the company website using Flash (Flex and ActionScript).
• Created the company website (PHP, HTML, CSS, JavaScript) and digital assets: brand logos, posters, multimedia UX and web layouts.

• PHP
• ActionScript
• Flex
• Adobe

Educational software and games.

• Drove the design and development of educational software using C++, Lua, OpenGL, DirectX and 3ds Max.
• Shipped titles including Maths Family, Mind Maths and Creative King.

• C++
• DirectX
• DirectShow
• OpenGL
• Lua
• 3ds Max