Data system, AI, Machine learning, Large Language Models / LLM, Knowledge graph & Insights

Data system, AI, Machine learning, Knowledge graph & Insights

Data system, Streaming platform, Machine learning & ML Infra, LI data Insights servingData Analytics Infra team, workflow management infra

* Developed Walmart.com backend search software system based on Apache Solr.* Worked on performance, scalability and relevance improvement on search software.* Big data processing with Hadoop, Hive, Spark, Couchbase etc.* Work with a nimble team responsible for components in the whole search eco-system. Manage and support large scale search data center environment.

Infrastructure & Framework Team* Develop various infrastructural software frameworks (networking, data processing, database) used in PayPal's large scale software system.* Performance tuning, address scalability issues for distributed systems to better serve PayPal'shigh-volume, high-reliability production environment.* Help various engineering teams utilize underlying frameworks and resolve bottleneck/performance issues.

Payment Gateway Team* Develop backend software system for a Payment Platform with yearly TPV (Total Payment Volume) more than 70 billion dollars.* Design distributed software architecture to achieve maximal networking availability andscalability with details to low level threading/networking/database issues.* Lead key projects development. Awarded multiple times for outstanding contribution in fixing key live issues.

Research on Data Mining, Machine Learning, Medical Imaging, Computer Vision. Dev lead for the Java based medical imaging software. Publication “Landmark-driven, Atlas-based Segmentation of Mouse Brain Tissue Images Containing Gene Expression Data”