Monetization is the optimization goal. The engineering craft is the bone.

Built full lifecycle (conversion signal generation -> impression A/B test) framework for data supply teams to realize revenue gain through feature enrichment for ads ranking models. Delivered 3x revenue growth goal for signal growth PG.

Currently focusing on ML Preproduction Eval for Ads Ranking.

Built OS(Win/Linux) and app runtime (.NET) fault injection drivers, and distributed chaos engineering experiment orchestration. Launched Azure Chaos Studio.

AWS IoT Greengrass: off-grid, on-premise AWS-as-a-runtime on your Raspberry Pi. Covered all device-side engineering, from over-the-air system updates to runtime messaging & device/cloud data replication. Debugged and removed multiple product-launching blocker in performance and reliability.

Multiple approved US Patents.