Major Bank — Credit Card Rewards Backend & Batch System IndustryFinance ChallengeLegacy rewards system unable to support new campaign rules; batch processing performance insufficient. Our RoleSystem refactoring and performance optimization. Responsible from architecture design through production operations. Technology UsedJavaSpring BatchRedisOracle
Online Gaming Platform — Member SDK & Core System IndustryGaming ChallengeRequired rapid delivery of a membership system supporting millions of concurrent users, plus multi-platform SDK. Our RoleBuilt membership core system and Android/iOS SDK from scratch, including payment integration and social features. Technology UsedC/C++Cocos2d-xReact NativeMQ
Financial Institution — Cross-System Points Exchange Platform IndustryFinance ChallengeMultiple banks with inconsistent points system specifications requiring unified integration and real-time settlement. Our RoleDesigned unified points exchange protocol and settlement engine, integrating multiple bank core systems. Technology UsedJavaSpring BootMongoDBDocker
