JianCheng (David) Chang

Data Analyst/Scientist

Apply myself to be a statistical expert/consultant, keep improving programming, learning English and Japanese to enchance competitiveness.
During the office time, work efficient and innovative.
After work, enrich life by reading and exercising.


張健誠 Jian-Cheng Chang, David Chang

Nationalilty
Taiwan
Birthday
1991/04/21
Email
david0912928@gmail.com
Skill
Statistic, Python, JMP, MSSQL, SAS, SPSS, PLSQL, Power BI, minitab
Language
Chinese, English
Hobby
Fitness, Swimming, Snowboarding, Read, Investment

Academic Background


2013-2015 Master Industrial Engineering and Management National Chiao Tung University
2009-2013 Bachelor Statistics National Taipei University

   Data Analyst

Sea Limited, Taipei City, Taiwan, March 2022 - present

  1. Support Malaysia Financial Collegues develop financial data cleaning automation with python and sql and link with Shopee's data platform.
  2. Support Singapore HQ Data Team to revise financial data cleaning code.

   Data Analyst

Topco Global, Taipei City, Taiwan, July 2020 - March 2022

  1. Power BI: Importing, teaching and supporting (Reduce 90% work time)
    • Semi-Conductor Chemistry Material SPC Chart
    • Retail Information Overview (MoM, YoY, ....)
    • Retail Basket Analysis

  2. AI
    • Semi-Conductor Material Consumption Forecast & Procurement Recommendation
    • Retail Business Predict Member's Repurchasing Probability in Next 30 days and Sales Call Recommendation
    • Solar Power Module Predictive Maintenance

  3. Routine Job Automation (Reduce 90% work time)
    • Semi-Conductor Material Order PDF file Text Capturing & link with Oracle ERP
    • Solar Power Module Inverter Input Current Auto-comparison and Visualization
    • Taiwan Insolation Duration Visualization

   MIS Senior Engineer

Coretronic, Hsinchu, Taiwan, April 2019 - June 2020

  1. Experimental Data Analysis - Gauge RR and Association Rule
  2. Power BI Report: FAB's Yield, Efficiency and CPK Value
  3. Last Time buy Estimating
  4. Warranty Price Calculation by Reliability

   IE Industrial Engineer

SPIL, Hsinchu, Taiwan, January 2018 - March 2020

  1. Product Price Report & Monthly Cost Calculation Automation
  2. System Design: Testing Time Comparison System
  3. Testing Time prediction Modeling: Establish a Testing Time Prediction Model for IC-Testing

   Testing Process Engineer (WSPE)

SPIL, Hsinchu, Taiwan, October 2015 - December 2018

  1. Defend T. corp. Suspect the Parameter of the Prober Machine by DOE
  2. N. corp. Probes' Life DOE Test - Improve Probes' Life
  3. Participate and Support to Optimize WS Production Line Automation
  4. Parameter Control & Machine Log Analysis Automation - Get Internal Award

Green Point = Have been
Red Point = Want to go