Chiao-Ya Chang
Fähigkeiten und Kenntnisse
Werdegang
Berufserfahrung von Chiao-Ya Chang
- Current 1 year and 3 months, since Mar 2025
Freelancer Data Scientist
Freelance Data Scientist
- Drive digital transformation at country level - Data science project management - Stakeholder relationship - Quantitative analysis - Data modeling with a focus on marketing data (clustering/ prediction/optimisation) using python - Data visualization app using streamlit and docker container - Generate business insights from data-driven solutions - Suggestion Engine use case pilot and roll-out - Define process and deliver solution
- 1 year and 6 months, Dec 2019 - May 2021
Data Scientist
Lidl Stiftung und Co. KG, Neckarsulm
- SQL - Data modeling (time series and statistical modeling - regression/ polynomial/ logic models) in Python - Dashboard visualization using dash or streamlit - Web programming with flask in Python (basic knowledge in HTML5, css, bootstrap, js, SQLite) - Knowledge in Pyspark
- 6 months, Apr 2019 - Sep 2019
Forschungsreferentin
EuroCARE GmbH
- Economic model development in the EU project (AgCLIM50 III Project) - Knowledge and Hands-on experiences in data ETL, using R packages "lrmest" for mixed estimation with prior information, "ggplot2" for visualization, "AER" and "dplyr" for OLS IV regression by factor levels and using mathematical programming in GAMS for data calibration, consolidation and optimization - Knowledge of distributed version control system Git and experience in centralized version control system SVN
- 2 years and 7 months, Sep 2016 - Mar 2019
Research assistant
University of Bonn
− Economic model development in the EU SUSFANS project − Data ETL process, data cleaning, calibration and consolidation and data warehouse − Specialized in mathematical programming models (programming in GAMS), specifically within global agricultural economic (CAPRI) model, used for fisheries policy analysis and simulation − Experienced in programming/modeling, statistics and econometrics − Knowledge of distributed version control system Git and experience in centralized version control system SVN
- 9 months, Jul 2012 - Mar 2013
Research assistant
Academia Sinica, Taiwan
Assist administration affairs and research topic regarding sustainability
- 6 months, Oct 2011 - Mar 2012
Trading Assistant Manager
GRT. INC.
1. Manage orders and delivery 2. Contact factories and clients
- 1 year and 11 months, Mar 2007 - Jan 2009
Senior financial planner
Manulife
- 8 months, Jul 2006 - Feb 2007
Financial Planner
E-Sun Bank, Taiwan
Ausbildung von Chiao-Ya Chang
- 7 years and 1 month, Oct 2014 - Oct 2021
Agrarwissenschaften
Rheinische Friedrich-Wilhelms-Universität Bonn
− Specialized in mathematical programming models, specifically within global agricultural economic (CAPRI) model, used for fisheries policy analysis and simulation − Experienced in programming/modeling, statistics and econometrics (using GAMS and R)
- 1 year and 11 months, Sep 2008 - Jul 2010
Economics
Taiwan National Central University
Competitive anaysis
- 3 years and 10 months, Sep 2002 - Jun 2006
Economics
Taiwan National Central University
Sprachen
Chinese
C2 (Verhandlungssicher / Muttersprachlich)
English
C1 (Fließend)
German
C1 (Fließend)
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