Jeffrey Li Email & Phone Number

Taiwan

Bangkok, Bangkok City, Thailand

• Optimized Spark configuration and workflows, targeting reducing the annual cost of Hadoop for the BI supply team by 5%.• Implemented best practices for Spark and SQL optimization, empowering team members to improve ETL performance.• Introduced Jinja syntax in SQL queries, streamlining workflow design, reducing cluster cost, and improving code readability.

Taipei City, Taiwan

• Devised a data solution from scratch, boosting analysis efficiency by 90% and driving 30% annual business growth.• Built a scalable end-to-end data pipeline, decoupling it from production source databases to prevent performance bottlenecks.• Created a robust data warehouse, translating business needs into a star schema model to enable data-driven decision-making.• Collaborated with stakeholders to define SLA for dataset and data governance rules to ensure data quality and compliance.• Led the development of a CDC system with senior leaders, improving data consistency and fixing transaction refund errors.

Taipei City, Taiwan

• Developed system integration testing procedures to improve data quality.• Developed backend features using Go, demonstrating beyond data engineering capabilities.

Taipei City, Taiwan

• Created a self-service tool for stakeholders to query and download campaign reports, boosting efficiency by over 90%.• Built a custom campaign segment service for precise targeting, increasing impression, partnerships, and revenue growth.• Integrated third-party data with company datasets, expanding distribution and increasing campaign reach across platforms.

New Taipei City, Taiwan

Fulfilled Mandatory Service obligation through the R&D Alternative Program

Hsinchu City, Taiwan, Taiwan

Fulfilled Mandatory Service obligation through the R&D Alternative Program

Master Of Science - Ms, Applied Mechanics

Bachelor Of Engineering - Be, Mechanical Engineering