My name is Teng Siong Ong. I usually go by Siong.

I am currently an engineer at Expa working on a stealth project. I was the first engineer at Envoy. Before that, I founded GraffitiGeo funded by Y Combinator and later sold it to Loopt.

I grew up in a small town called Teluk Intan in Malaysia.

You can find me on: