Fully Remote Engineer in Instagram Machine Learning Feature Authoring team (Sep. 2021 – present)

1. Tech Lead on IG Relevance Feature Migration

2. Improve Reliability and Efficiency in Feature Processing

Software Engineer in Data Warehouse Insight Team (Oct. 2017 – Aug. 2021)

1. Improve User Data Privacy in Warehouse by tracking data flow

2. Lead Query Parsing Service Project

3. Conduct Warehouse Graph Analysis Research

Working on CAF Storage Service, a distributed PaaS service on Cloud:

1. Define and implement Restfuls API for data backup/restore in Jersey Framework/Tomcat Server.

2. Design and develop Postgres and HBase data schema for CAF Storage Service, and maintain the upgrades.

3. Integrate with Amazon S3 and M.S. Azure Blob as backed data storage.

4. Build and deployment docker container, and orchestrated by Mesos and Marathon.

5. Participate in data migration for HBase in production environment.

Web Developer for Data Management Console project.

1. Build Java based Web Application server with Spring Framework and Apache Tomcat Server.

2. Create front-end user interface with JQuery, Angular JS, CSS and HTML.

3. Develop JDBC connection to Apache Derby database to persist user information, and HBase connection to store metadata for large files in server side.

Implement and maintain data protection software with C/C++

1. Integrate with EMC's Data Domain Boost storage for data backup and restore.

2. Conduct performance tests for backup and restore with terabytes data.

1. Conduct a lab to teaching student how to construct a Data Structure to apply different requirement.

2. Introduce student various algorithms and analysis their performance, including time consuming and memory consuming

1. Teaching students basic Java programming language and Swing UI design.

2. Assist students analysis business cases and requirements to implement Java application.