Poh Yong Han
CEO & Co-Founder
Harvard BA, Rhodes Scholar; Oxford PhD on construction labour. Taught at NUS, and grew up in her family's renovation business. Leads business development and partnerships.
About us
We build for work we've lived.
Yong Han's family ran a renovation business. Liam built houses before he built software. Zul was a firefighter, Azfer a police commander. Every one of us has worked in frontline operations, and we build OnSite to fix the workflows we found broken there.
Liam Appelson
CPO & Co-Founder
Construction manager at Appelson Design Works; Yale Physics B.S.; computational designer for Herman Miller, Louis Poulsen, and B&B Italia at Gabriel Tan Studio. Leads product and front-end engineering.
Zul Yang
Founding Engineer
Former firefighter turned engineer. Built privacy-engineering systems at GovTech and architected SCDF's digital transformation. Leads back-end engineering, infrastructure, and security.
Azfer Ali Khan
In-House Counsel
Read law at Cambridge; LLM from Harvard. Former Commanding Officer, Tanglin Division, SPF; formerly head of legal and compliance at a fintech startup. Leads legal and compliance.