Welcome to my page! I'm Raymond Yeh, a geek obsesed with distributed ledger technology (blockchain), data science and computer security.


In my professional life, I'm a software developer with GovTech Singapore working on building awesome citizen-centric products for fellow Singaporean.

I am currently working on OpenCerts, a digital certificate framework to issue and verify education credentials on the blockchain. I'm subscribed to the belief that end-users should have control over their data, and that's what OpenCerts is built upon. I enjoy evangelising the inversion of control of data and embedding trust in the new web, to form web 3.0

If you are interested in what I do at GovTech, talk to me, my team is currently hiring!


I enjoy playing boardgames and console games like Super Smash Bros, Mario Kart and Mario Party. Be sure to ask me out for your game night - or I can host!

My hidden talent is show and tell, as pointed out by my colleagues. Ask me to share:

  • a magic trick or two
  • mobile app hacking/spoofing
  • high frequency & arbitrage trading

I believe in improving social mobility through education and will be happy to collaborate on meaningful projects.

More About Me

If you like to know more about me, feel free to navigate to the rest of the About section: