Jung-Cheng Chang

Experience

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  85 Degree C Bakery & Cafe

  Dec 2013 - Feb 2014

  Barista
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  Diablo Valley College

  Sept 2014 - May 2017

  • Math Tutor

    Jun 2016 - May 2017

  • Mandarin Chinese Tutor

    Jan 2015 - May 2017

  • MESA Chemistry Tutor

    Sept 2016 - Dec 2016

  • President's Office Student Assistant

    Sept 2014 - Dec 2014
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  UC Davis Department of Microbiology and Molecular Genetics

  Sept 2017 - Mar 2020

  Student Assistant
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  Taiwanese Student Association at UC Davis - TSA 台灣同學會

  Apr 2018 - Jun 2020

  Senior Consultant and Treasurer
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  DATA - Davis Award Travel Association

  Oct 2018 - Jun 2020

  Founder and President

  • Provided credit health and credit allocation consulting• Developed and presented course in credit, bank rewards, and frequent flyer programs • Helped individuals to set goals and plan the actions for redeeming travel rewards

• 

  Hsinli's Department Store

  Jun 2019 - Aug 2019

  Analytics Intern

  • Constructed database of 7-years historical records, implemented linear regression and time series analysis to forecast seasonal demand (Excel, R)• Performed data visualization and proposed strategies to increase yoy monthly revenue by 30% (R)

• 

  SigTech

  May 2021 - Aug 2021

  Data Engineering Intern

  • Conducted sentiment analysis with NLTK library, built ML models (Logistic Regression, SVM, neural network) to generate trading signals for XOM and GME (Python)• Identified relevant Tweets and news data using API and web scraping tools and performed data cleaning for Natural Language Processing (NLP)

• 

  Barton Malow

  Jan 2022 - now

  Data Engineer

  • Built end-to-end data pipelines from sources to Databricks in Python and Rust• Constructed Docker containerized service API to interact with PostgreSQL DB on AWS RDS in Go