* Developed one of the biggest global smart commerce enabler service in Asia, SHOPLINE, which helped 250, 000 brands to go online and global. Responsibilities include Rails backend. * Design and implement Lock inventory feature, which allows customers can order product during the Facebook or SHOPLINE livestream and the product will be automatically reserved until the deadline set by the merchant. * Implement multiple payment gateways and delivery services to support different countries' payment and logistic Integrations * Design and implement AWS lambda service to support and integrate Facebook Ecommerce Businesses. * Refactor import products system to support multiple languages.

* Developed one of the biggest online grocery and food delivery service in Asia, Honestbee, which got hundreds of thousands of views and deals per day. Responsibilities include Rails, Golang backend. * Developed shared, preorder feature for food delivery service and increased 20% average order value. * Designed and implemented the membership system. Honestbee cooperated with S&R Membership Shopping in business and developed its own membership beeHive base on this system which brings 70000+ memberships. * Developed Habitat, a retail, tech-enabled store. Responsibilities include developing and maintaining Golang service, use Rails to build admin panel to display consumers and deals info to local operation team. * Used Amazon Web Service AWS, Kubernetes to manage and monitor our cluster, pods and services.

* Developed the biggest recipe website in Taiwan, iCook, which got hundreds of thousands of views per day. Responsibilities include Rails backend, TDD with RSpec, importing hybrid format for mobile applications, using Amazon Web Service AWS, Google Cloud Platform GCP to manage and monitor services. * Imported GraphQL to the API system. * Reduced docker image size by 50% and increased their building performance.