Defoe Zhang
About
Defoe Zhang is from New York, New York, United States. Defoe is currently Data Engineer at BRICK Education Network, located in Newark, New Jersey, United States. In Defoe's previous role as a Process Engineer at Hong Kong-Zhuhai-Macau Bridge , Defoe worked in until Apr 2016.
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Defoe Zhang's current jobs
As the only data engineer in the Data Team, my responsibilities include data modeling, developing data pipelines and performing ETL on GCP(Airflow, Google Cloud Storage, BigQuery) / Using PySpark for data wrangling and building SAT predictive model (Naïve Bayes, SVM and Logistic regression) based on country-wide assessment data. Accuracy increased by 8% than NWEA official prediction / Joining cross-functional team meetings and creating automated data dashboards by scheduling complex queries on BigQuery and feeding data to Google Data Studio for different stakeholders to visualize real-time departmental performances