Wei Liu
Senior Software Engineer at Walmart Global Tech
- Role
- Senior Software Engineer at Walmart Global Tech
- Location
- Sunnyvale, CA, US
- LinkedIn followers
- 500 followers
About Wei Liu
Expertise: Programming Languages: Java (Spring Framework), Python, C/C++…
Experience
Senior Software Engineer
Jan 2016 — Present · Sunnyvale, CA, US
I) Smart Inventory Management System team- Building a forecasting and order recommendation system for Walmart business teams to make inbound purchase orders for Walmart.com- Designed and implemented an order management system with REST APIs to place orders - Built a data pipeline system (using Spark and Kafka) to run big data (in Apach Hive, Google Cloud Storage, Big Query) refresh to support entire Walmart supply chain tech teamsII) Supply Chain Data Science team- Worked on optimizer as a service platform- Built a scalable orchestration layer (web service with REST APIs) to run optimizers with mass incoming requests from all Walmart fulfillment centers- Worked on pallet building optimization to minimize transportation costs for each truck Event Driven Fulfillment team- Worked on cloud configuration migration for all Java applications of the team- Worked on inbound supply chain database migration from Oracle to Postgres- Worked on managed Airflow migration for team’s ETL system.
Education
Peking University
B.S., Physics, Statistics
2001 — 2005
University of Pennsylvania
Ph.D candidate and M.S., Materials Science and Engineering
2007 — 2010
University of California, Davis
M.S., Computer Science
2010 — 2012
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