Software Development in China is more like the United States, not India. China now has several very big software development product or platform companies like Huawei(more than 80k engineers), Alibaba and Tencent(20k to 30k engineers), even the newer companies like Meituan-Dianping (market valued 30B dollars) with nearly 10k engineers.
These teams are learning closely what the counterparts in silicon valley or Seattle did and they learned fast. They also have built massive IT infrastructure.
Java and Python are the most popular languages for server side or other things, and JavaScript is the king for front-end. Newer languages like Go, Rust, Kotlin are gaining more and more adoption. It seems China has much more Go users than US！
Everyone wrote code and comments in English. There are viable programming language projects in Chinese keywords, but very, very niche.
The hottest buzzwords? K8s, Elastic, Flink, Vue (developed by a Chinese guy), deep learning, GAN, TensorFlow...
Agile is not very hot here, although Scrum stuff is often heard in office. Lean Startup(MVP) dominates.