Projects

A showcase of my work including payment systems, e-commerce platforms, and enterprise applications.

17

Total Projects

8

Featured

17

Professional

76

Technologies

2025-09 - 2025-10

Octopus Payment Gateway Microservice

Platform & DevSecOps Engineer

Standalone multi-tenant payment gateway service with HMAC-SHA256 signing, JWT authentication, and merchant management system.

Contributed 3,680+ lines of production code in 2 weeks

APIP-compliant multi-tenant architecture

Spring Security

3,680+ lines of codeMulti-tenant architectureAPIP compliant

2025-09 - 2025-11

Ocean Park E-Commerce Ticketing Platform

Platform & DevSecOps Engineer

Complete A-to-Z ticket purchase flow with Type Approval compliant payment monitoring and automated reconciliation.

Type Approval compliant payment monitoring system

99.9% transaction success rate

Spring Security

99.9% success rateTA compliantZero revenue loss

2025-10 - 2025-11

ECHealth Healthcare Booking System

Full-Stack Developer

Full-stack healthcare appointment booking platform mini-program within Octopus app, featuring React frontend and Spring Boot backend with AWS integration.

5,277 lines of code (39 commits) in 5 days across frontend and backend

Bilingual support (English/Traditional Chinese) with i18next and backend Accept-Language headers

Spring Boot 3.4

5,277 lines of code39 commitsFull-stackAWS integrated

2025-09 - 2025-12

HKTB AI Trip Planner

Platform & DevSecOps Engineer

Full-stack AI-powered trip planning platform with 5-step questionnaire, drag-and-drop itinerary management, and admin portal for event management.

~15,000 lines of code across 150+ files

Multi-language support with 1,500+ translation keys across 3 languages

AWS Amplify Gen 2

~15,000 lines of code150+ files1,500+ translation keys3 languages

2025-11 - 2026-01

Octopus Mobile Spend to Earn Campaign

Frontend Developer

Bilingual promotional campaign website with real-time leaderboards, JWT authentication, and comprehensive analytics tracking for Mobile Octopus rewards program.

41 commits over 57-day intensive campaign period

Fixed critical mobile rendering issues across 5+ device types (iPhone SE to Galaxy S8+)

4,600+ lines of code41 commitsBilingualAWS deployed

2025-12 - 2026-01

DDC Recipes Platform

Frontend Developer

Responsive recipe and blog platform with Sanity CMS integration, featuring desktop/mobile layouts and multi-language support.

~400 lines of production code across 8 merged pull requests

Fixed 3 critical bugs (URL routing, mobile layout, font consistency)

8 pull requests3 critical fixesSanity CMSMulti-language

2026-01 - present

OCL Loyalty Web Application

Frontend Architect

Mobile-first loyalty program platform with missions, promotions, offers, and eStamps, featuring Ionic React components and AEM integration.

26 commits delivering 9,264 lines added in 2-week sprint

Complete missions and promotions systems with filter/sort capabilities

9,264 lines added26 commits53 CSS modules2-week sprint

2024-09 - 2025-09

Tencent AMS Props Warehouse System

Overseas Lead Developer

Built distributed virtual goods inventory system managing millions of game items across 20+ international gaming titles.

Managing millions of virtual items across 20+ game titles

Part of 31 feature developments and 20 bug fixes

20+ game titles31 features deliveredZero discrepancies

2024-09 - 2025-09

Tencent AMS PaaS Interface Platform

Overseas Lead Developer

Built unified API gateway serving as integration hub for game services with standardized authentication and rate limiting.

Serving multiple game titles across international regions

Part of comprehensive AMS platform ecosystem

Multiple game servicesCentralized gatewayHigh availability

2024-09 - 2025-09

Tencent AMS Loyalty Points System

Overseas Lead Developer

Developed comprehensive points and rewards platform managing player loyalty programs across international gaming ecosystem.

Managing player loyalty across multiple game titles

Processing daily point transactions reliably

Multiple regionsFraud preventionHigh reliability

2024-09 - 2025-09

Tencent AMS Operations Management Portal

Overseas Lead Developer

Created comprehensive admin portal empowering operations teams to manage campaigns, players, and content across 20+ games.

Supporting operations staff across multiple regional offices

Managing concurrent marketing campaigns

100+ operations usersCampaign managementReal-time dashboards

2024-09 - 2025-09

Tencent AMS Monitoring & Log Management Platform

Overseas Lead Developer

Built monitoring infrastructure (监控平台 & 日志管理) providing real-time visibility into system health across all AMS services.

Monitoring all AMS microservices and systems

Hourly dashboard checks for system health

魔镜 (Magic Mirror)

6 systems monitoredReal-time alertsCentralized logging

2024-09 - 2025-09

Tencent AMS Internationalization & Export System

Overseas Lead Developer

Developed multi-language template system supporting 15+ languages with self-service export functionality.

Supporting 15+ languages including Myanmar, Thai, and Arabic

Self-service export reducing operational overhead

15+ languagesSelf-service exportsTemplate management

2023-06 - 2024-09

Ufootball Sports Platform

Full-Stack Developer

Full-stack sports platform with Next.js frontend, PHP/CodeIgniter backend, and comprehensive SEO optimization.

Increased website traffic through SEO optimization

Custom iframe integration for event embedding

Multi-language supportSEO optimized3-person team

2023-06 - 2024-09

Ticketing Report System Optimization

Backend Developer

Achieved 95% SQL query performance improvement through database optimization and query restructuring for external client.

95% improvement in SQL query performance

Significantly reduced query execution time

SQL Optimization

Database Indexing

95% performance improvementQuery optimization

2023-06 - 2024-09

Corebase Company Website

Full-Stack Developer

Simple company website built over existing boilerplate with basic customization and content management.

Built over existing boilerplate foundation

Simple informational corporate website

Boilerplate customizationStatic website

2023-06 - 2024-09

Healthcare Mobile SDKs (Assistant Role)

Assistant Developer

Provided limited assistive support for healthcare SDK development on iOS and Android platforms.

Assistive role in multi-platform SDK project

Limited involvement in mobile development

Assistant roleLimited involvement