Jau-Ji Lin
Data Analyst
Villingen-Schwenningen,Taiwan
Summary
Data Analyst familiar with gathering, cleaning and organizing data for use by technical and non-technical personnel. Advanced understanding of Python, R, SQL and Power BI. Highly organized, motivated and diligent with significant background in telecommunication, mobile payments and structural bioinformatics.
Overview
8
8
years of professional experience
17
17
years of post-secondary education
1
1
Certification
Work History
Senior Data Analyst
Chunghwa Telecom
Taipei, Taiwan
09.2021 - Current
- Analyzed 10M+ customers billing and payments data and built VIP customer loyalty program based on individual contribution and business rules
- Examined user transaction data of Chunghwa Telecom’s payment App and identified abnormal transaction records in credit card payment promotion campaigns, thus reducing 10% of marketing expenditure
Data Analyst
Chunghwa Telecom
Taipei, Taiwan
01.2018 - 08.2021
- Used SQL to extract data from Teradata and Oracle database and communicate findings in understandable format through PowerBI in weekly or monthly report
- Worked closely with engineering and marketing team members to improve both App quality and customer satisfaction and therefore raised App Store ratings from below 2.0 to 4.5
Product Manager
Chunghwa Telecom
Taipei, Taiwan
04.2014 - 12.2017
- Coordinated development of customizable push notification system for both Android and iOS, which has been used for sending over half billion messages to one million customers since 2018
Education
Ph.D. - Bioinformatics
National Yang-Ming University
Taipei, Taiwan 09.2007 - 12.2017
Master of Science - Bioinformatics
National Chiao-Tung University
Hsinchu, Taiwan 09.2003 - 06.2005
Bachelor of Science - Computer Science
National Taiwan University
Taipei, Taiwan 09.1995 - 06.2000
Skills
Data analysis
undefinedCertification
EBDP - Enterprise Big Data Professional by APMG
Timeline
Senior Data Analyst
Chunghwa Telecom
09.2021 - Current
EBDP - Enterprise Big Data Professional by APMG
06-2021
Data Analyst
Chunghwa Telecom
01.2018 - 08.2021
Product Manager
Chunghwa Telecom
04.2014 - 12.2017
Ph.D. - Bioinformatics
National Yang-Ming University
09.2007 - 12.2017
Master of Science - Bioinformatics
National Chiao-Tung University
09.2003 - 06.2005
Bachelor of Science - Computer Science
National Taiwan University
09.1995 - 06.2000
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