•Lead software development in eCommerce department.•Building new Kubernetes/AWS based micro-service system to replace legacy C++/C# monolithic system

•Lead Home Innovation team under Retail-Hardlines, owning development for Home, Kitchen, Furniture and Pets product shopping experience•Worked closely with business teams on new initiatives from defining requirement, technical design and scoping to implementation.•Designed and lead development of visual shopping experience - Amazon Showroom•Designed and lead development of 360 degree view on product page with assets uploading pipeline.•Designed and launched Pet Profile, gathered over 500k profiles in 2 months.•Designed and lead development of an extendable framework to enable Pet's Prescription items on retail website, which includes multiple restful/RPC services, several serverless Lambda modules and integration with dozens of internal teams as well as external partners.•Designed and built both front-end website and back-end systems of Amazon Move, launched from scratch to production in 4 months.

•Worked on couples of core services in Amazon Payment Platform which handles all payment transactions of Amazon.com, AWS and subsidiaries globally.•Owned and lead development of Payments Workflow service and Business Configuration service. •Designed self-service system and enabled more than 100 business entities in payments platform.•Designed and built generic payment processor framework which significantly reduced the development work of processor onboarding from 12 weeks to less than 4 weeks and eventually less than 1 week.•Worked on platform initiative to migrate Payments systems from Oracle SQL to DynamoDB NoSQL solution.•Built dedicated payment workflow system for Amazon mobile POS, a.k.a, Amazon Local Register.•Built storage solution to handle Oracle SQL database horizontal sharding and age-based data access for transactional systems.

•Created dozens of internal software for daily operations, including inventory control, record keeping, report generation, etc, mainly written in C#•Built an automation system with JAVA for BIOS/Firmware updating and server testing, which reduced time and labor cost over 50%•Maintained Company’s website and introduced new features with ASP.Net•Implemented a RMA web service and corresponding website to expedite RMA process

•Implemented and maintained a kiosk system which provides home buyers up-to-date information on properties that match their needs.•C#.Net, MS Access and XML is mainly used in this project.