Hi, I'm Stephen Ni, a software engineer and architect based in China. I currently lead a backend infrastructure team in the fintech industry, focusing on building reliable and scalable systems, as well as exploring AI Agent development.

My main areas of interest include distributed systems, backend infrastructure, and more recently AI Agent development — exploring how to build intelligent, autonomous systems that can reason and act in complex environments.

This blog is where I document things I learn along the way — technical deep dives, engineering notes, and occasional reflections. Writing helps me think more clearly, and I hope some of it is useful to others too.

Feel free to check out the blog posts or reach out if anything resonates.