Work
Case studies.
Production systems and my own product. Each says what it is, what I did and what it shows.
- Built in a full-time job
- Freelance contract
- My own product
In depth
- Freelance · TradersFlow (TRFC)
2025
MT5 Manager API service and real-time risk monitor
A C#/.NET service on MetaQuotes' native Manager API, and a monitor that enforces every trading account's loss rules within seconds, for a live prop-trading platform.
Read the case study - Job · CFI Financial
2026
Payments and crypto back office at a live broker
Wallet payment methods in production, crypto back-office APIs with field-level permissions, and cross-service debugging on an event-driven platform at CFI Financial.
Read the case study - Job · Appnovation
2025
Octopus payment gateway microservice
A production-ready, multi-tenant payment gateway service with HMAC-SHA256 request signing, replay protection, merchant key rotation and webhook delivery.
Read the case study - My own product
2026
SolveMY
A trilingual local-services marketplace for Malaysia on Android, iOS and web. Customers post requests; verified providers and merchants quote and chat.
Read the case study - Job · Appnovation
2025
Ocean Park e-commerce ticketing platform
Complete A-to-Z ticket purchase flow with Type Approval compliant payment monitoring and automated reconciliation.
Read the case study
All projects, by employer
Appnovation
Full-Stack Developer · Full-time
- 2026OCL Loyalty Web ApplicationMobile-first loyalty program platform with missions, promotions, offers, and eStamps, featuring Ionic React components and AEM integration.
- 2025DDC Recipes PlatformResponsive recipe and blog platform with Sanity CMS integration, featuring desktop/mobile layouts and multi-language support.
- 2025Octopus Mobile Spend to Earn CampaignBilingual promotional campaign website with real-time leaderboards, JWT authentication, and comprehensive analytics tracking for Mobile Octopus rewards program.
- 2025ECHealth Healthcare Booking SystemFull-stack healthcare appointment booking platform mini-program within Octopus app, featuring React frontend and Spring Boot backend with AWS integration.
- 2025HKTB AI Trip PlannerFull-stack AI-powered trip planning platform with 5-step questionnaire, drag-and-drop itinerary management, and admin portal for event management.
Tencent
Overseas Lead Developer, AMS · Full-time
- 2024Tencent AMS Props Warehouse SystemBuilt distributed virtual goods inventory system managing millions of game items across 20+ international gaming titles.
- 2024Tencent AMS PaaS Interface PlatformBuilt unified API gateway serving as integration hub for game services with standardized authentication and rate limiting.
- 2024Tencent AMS Loyalty Points SystemDeveloped comprehensive points and rewards platform managing player loyalty programs across international gaming ecosystem.
- 2024Tencent AMS Operations Management PortalCreated comprehensive admin portal empowering operations teams to manage campaigns, players, and content across 20+ games.
- 2024Tencent AMS Monitoring & Log Management PlatformBuilt monitoring infrastructure (监控平台 & 日志管理) providing real-time visibility into system health across all AMS services.
- 2024Tencent AMS Internationalization & Export SystemDeveloped multi-language template system supporting 15+ languages with self-service export functionality.
Corebase Technologies
Full-Stack Developer · Full-time
- 2023Ufootball Sports PlatformFull-stack sports platform with Next.js frontend, PHP/CodeIgniter backend, and comprehensive SEO optimization.
- 2023Ticketing Report System OptimizationAchieved 95% SQL query performance improvement through database optimization and query restructuring for external client.
- 2023Corebase Company WebsiteSimple company website built over existing boilerplate with basic customization and content management.
- 2023Healthcare Mobile SDKs (Assistant Role)Provided limited assistive support for healthcare SDK development on iOS and Android platforms.