Yu-Cheng (Ethan) Keng

Technical Consultant | Expert in Retail Media Integrations & E-Commerce Ad Tech

About Me

Hi, I'm Yu-Cheng (Ethan) Keng - a technical consultant specializing in retail media integrations, e-commerce ad tech, and data migration. I'm currently a Sr. Technical Solutions Specialist at Criteo in Tokyo, and I've worked across Tokyo and Taipei. I'm fully trilingual in Japanese, Mandarin, and English, and fluent in Taiwanese.

Outside of work, I love building side projects, exploring AI tools, and playing chill-pop & folk guitar.

Areas of Expertise

Retail media integrations & e-commerce ad tech (APIs, troubleshooting, launch support)
Data migration & ETL (SQL transforms, validation, UAT support)
Cross-functional technical leadership (stakeholders, roadmap, delivery)
Software development & automation (Python, JavaScript)
Multilingual communication (Japanese, Mandarin, English; fluent Taiwanese)

Projects

Have feedback or a bug report for any project? Send it here: https://forms.gle/EVX64Rimp2fQsJxh8

AI Keyboard

An Android keyboard (IME) that combines voice dictation with optional Gemini-powered rewriting (grammar + tone).

Google Play listing
App introduction - overview + highlights
Closed testing - how to join on Google Play
Gemini API key guide - step-by-step setup
Gemini cost estimator - estimate monthly usage
Privacy policy

Excalidraw Drive Sync

Save, manage, and auto-sync Excalidraw drawings to Google Drive.

AI Prompt Assistant

A simple guide for an assistant that helps you craft better prompts and iterate faster.

Get in Touch

For inquiries or collaboration opportunities, please reach out to me at: me@kengblog.com