Software Engineer
Hey 👋 I'm Hòa — a software engineer with 4+ years focused on backend systems, microservices, and AI agents. I care about strong fundamentals, pragmatic best practices, and shipping things that stay calm under load.
I'd write everything in Golang if I could.
notes on software engineering, distributed systems, and lessons from building things — with the occasional life update in between.
Three ways a thundering herd shows up in production — retry storms, cache stampedes, and planned traffic spikes — and how the industry actually deals with each one.
What an AI agent actually is once you strip away the hype — a model, a set of tools, and a loop. I build a small tool-calling agent in Go from scratch.
A quiet reflection on a year of change — switching companies, traveling almost every month, and learning to keep going.
How I used k6 to measure and validate response-time improvements after optimizing our product search engine.
A personal reflection on a difficult year of change, self-doubt, learning, and slowly finding direction again.