C-H Chen
Senior Data Engineer
Summary
Experienced Data Engineer and Analyst with over 5 years in designing end-to-end data solutions across retail, cybersecurity, and marketing domains. Adept at transforming raw data into actionable insights and building scalable data platforms that align with business goals. Proficient in Python, SQL, and modern cloud architectures (Azure/AWS).
Overview
7
7
years of professional experience
2
2
years of post-secondary education
Work History
Senior Data Engineer
TXOne Networks
09.2024 - Current
- Led the design and implementation of the department’s first data pipeline infrastructure.
- Evaluated AWS (Glue, Lambda, RDS) vs Azure (ADF, Function, RDS) and ultimately adopted Azure due to easier integration with existing identity management and simplified access control using Azure Active Directory (AAD).
- Built end-to-end automated daily sales revenue reporting system using ERP, Azure Functions, ADF, PostgreSQL, and alert mechanisms.
- Developed ARR models by reverse-engineering subscription logic from invoice data; collaborated with finance teams for forecast alignment.
- Designed Azure-based cloud data platform including cost control, security setup, and database configuration.
- Automated DUNS potential customer report generation using D&B API; enabled consistent and accurate sales intelligence.
- Led cross-system DUNS ID mapping for ERP, CRM, and regional sources to ensure consistency in financial reports.
Data Engineer
Trend Micro
05.2022 - 09.2024
- Developed centralized web service for database integration and permission management using Azure Function and ADX.
- Automated deployment pipelines with GitHub Actions; improved system security and stability.
- Integrated data pipelines using Python, Linux, and ADX for consistent data transmission.
- Optimized Synapse queries and stored procedures, reducing execution time by 30% (from 10 hours to 7 hours) and resolving major performance bottlenecks.
- Deployed a real-time data quality alerting system linked to enterprise pipelines.
Data Engineer
Athemaster (Consulting Firm)
09.2019 - 11.2021
- Built an Airflow-monitored automated POS data pipeline for retail clients.
- Developed a recommendation system and improved performance vs classical filtering by 179%.
- Built daily BI dashboards with Tableau; implemented real-time factory monitoring via Power BI.
- Created data labeling system and assisted banks in integrating a data science workbench.
Data Engineer
Ding Ding Integrated Marketing (HappyGo)
02.2018 - 08.2019
- Conducted behavioral segmentation on members using internal and third-party data.
- Generated marketing lists based on SQL logic and iterative discussions with marketing teams.
- Maintained Flask-based internal web server and developed services using MongoDB and Teradata.
- Built Hadoop/Spark-based recommendation system that outperformed random selection by 223%.
Education
MBA - Business Management, Statistics, Technology Management
National Yunlin University of Science and Technology
01.2013 - 01.2015
Skills
- Python
- SQL
- Shell
- Azure
- AWS
- Data pipeline design
- ETL development
- Data visualization
- Hadoop ecosystem
Timeline
Senior Data Engineer
TXOne Networks
09.2024 - Current
Data Engineer
Trend Micro
05.2022 - 09.2024
Data Engineer
Athemaster (Consulting Firm)
09.2019 - 11.2021
Data Engineer
Ding Ding Integrated Marketing (HappyGo)
02.2018 - 08.2019
MBA - Business Management, Statistics, Technology Management
National Yunlin University of Science and Technology
01.2013 - 01.2015
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