Summary
Kai X is a generalist software engineer and repeat founder with about a decade of hands-on experience building full-stack platforms, booking backends, and cloud infrastructure for startups. As the sole technologist at Playces he designed and operated the platform and Kubernetes-backed systems that helped partners increase bookings and revenue substantially, and he’s since co-founded multiple ventures including felt and Prompt Labs. Comfortable across product, infrastructure, and user research, Kai gravitates toward human-centered solutions that work under real-world constraints—low-power, low-connectivity devices and services for vulnerable communities are particular interests. He blends creative tinkering with pragmatic systems design, enjoys getting deep into operational weeds, and prefers small teams where direct user conversation informs iterative experiments. Based in Toronto, he’s open to opportunities that combine technical rigor with social impact and moments of delight.
10 years of coding experience
12 years of employment as a software developer
Doctor of Philosophy (PhD) Decision Risk and Operations, Doctor of Philosophy (PhD) Decision Risk and Operations at Columbia Business School
BS Physics and Economics, BS Physics and Economics at Peking University