At EAXY4U CO., LTD., I engineered production infrastructure for business-critical applications and architected a multi-restaurant payment platform using Stripe Connect and PromptPay. I implemented secure webhooks, idempotent transactions, automated reconciliation, and branch-level financial isolation.
I improved PostgreSQL transaction performance by 35% through partitioning, indexing, query tuning, and WAL configuration. I also built centralized logging and monitoring that reduced incident resolution time by 50%.
At AGGA.io, I re-architected data access patterns and built query pipelines and caching layers to reduce database load under concurrency. I also developed Laravel applications at 1Cube Technologies Sdn Bhd and published LexoRankTrait, an open-source Laravel solution for sortable positions.
