Welcome!

I'm YUNG-CHI(Charlie) MAI

DevOps Support Engineer | Ex-AWS Cloud Support Engineer II | Cloud & AI Tooling Builder | UCD MSc (Negotiated Learning)

This website is my living portfolio and growth log. I document what I build across cloud infrastructure, DevOps automation, mobile apps, and AI tools — including lightweight demos and architecture notes. I have 15+ years of hands-on experience, and I’m currently working in Ireland supporting mission-critical systems. I’m also studying a part-time MSc at University College Dublin and publishing module notes + demos in the Learning section.

Explore Projects Learning Log View CV Vouchgether

Highlighted Projects </>

VideoTranslate
Prototype

Upload an MP4/MOV to S3 and EventBridge triggers AWS Batch to generate Whisper subtitles (with optional translation).

UCD Sport Auto Booker
Automation

A scheduled automation that logs into a booking site, secures sports slots, and sends email notifications — built with EventBridge Scheduler + Lambda + DynamoDB.

ArgumentLab
AI Lab

YouTube → Vector DB → chat UI for exploring political ideas, comparing arguments, and mapping my own reasoning over time.

RAG Troubleshooting GPT Assistant
AI

Self-built AI agent to semantically search my technical documents and assist in complex troubleshooting workflows. Supports ingestion, Pinecone search, and a memory loop.

Vouchgether
Live

Voucher-sharing community service in Ireland (WhatsApp bot + web portal + AWS serverless backend + Stripe subscriptions).

Parking Violation Reporter
Popular

Single-handedly developed a citizen app that handled 440,000+ violation reports in Taiwan within one year.

Latest from blog

UL AI Certificate: What I Learned and How It Changed My Builds
Update

A reflection on completing the University of Limerick AI certificate (Sep 2025–Jan 2026) — and how it shaped my next projects (RAG, VideoTranslate, ArgumentLab).

Self-evolving AI Agents: My Vision and Challenges

Exploring the potential of AI agents that can adapt and grow from usage—what I’ve built so far and what I hope to learn.

Why I Want to Pursue a Master's in AI and Evolve My Impact

From DevOps to AI agents—how building practical systems inspired me to pursue formal AI study at a top Irish university.

VideoTranslate Prototype

UCD Sport Auto Booker Automation

ArgumentLab AI Lab

RAG Troubleshooting GPT Assistant AI

Vouchgether Live

Parking Violation Reporter Popular

UL AI Certificate: What I Learned and How It Changed My Builds Update