William Y.

Key Skills

Software

No software listed

Top Subject Matter

Python

SQL

Data Warehouse Design

Top Data Types

Text

Computer Code Programming

Top Task Types

Segmentation

Freelancer Overview

Data Engineer - Pegipegi. Brings 14+ years of professional experience across complex professional workflows, research, and quality-focused execution. Education includes Bachelor of Computer Science, Universitas Ma Chung (2012) and Google Cloud Professional Data Engineer Certification, Google Cloud (2023). AI-training focus includes labeling workflows including Segmentation.

Labeling Experience

Data Engineer - Pegipegi

Segmentation

Data Engineer focused on building ETL solutions to improve pricing, inventory, and customer experience workflows. Created competitor crawling ETL systems to help enable price and inventory competitiveness. Implemented CRM and customer service related ETL processes to support marketing segmentation and manual cancellation workflows. • Build competitor crawling ETL to support pricing and inventory competitiveness • Create CRM ETL for marketing customer segmentation analysis • Enable third-party manual cancellation ETL for customer service operations • Work across data extraction, transformation, and loading workflows for business use cases

2015 - 2017

Education

Work History