Engineer & operator · Kuala Lumpur
Intelligent systems.
Accountable decisions.
I’m Tan Ji Sheng. I build AI and blockchain systems, and help teams make the decisions that keep them dependable.
CEO, GamBit Custody Fractional mandate · Independent advisory.
Thirteen years of shipping.
The last eight on-chain.
From smart-city data and public protocols
to the future of digital-asset control.
Selected work
Built, shipped.
Open to scrutiny.
Three chapters in making complex systems work.
Roles, decisions, artifacts, and what I learned.
Concept illustration of city telemetry; not live data.
Making city data useful on the ground.
Vehicle telemetry and analytics for local governments.
Concept illustration of protocol layers.
Building beneath the application layer.
A public chain, tokenization tools, and a managed migration.
Concept illustration of a Razortooth collectible, separate from the AI agent. Asset ID and addresses are fictional.
From a game world to a community agent.
The products and decisions from my 2021–2025 chapter.
Inside the Lab
Learn the basics.
Find a useful tool.
Learn blockchain through interactive lessons, or find a practical tool for QR codes, Ethereum addresses, and text conversions.
Enter the Lab
A person behind the systems
Engineering is also
an act of stewardship.
I lead GamBit Custody and advise teams independently. My current focus is making digital-asset control understandable, operable, and ready for a handover.
GamBit Custody is regulated by Securities Commission Malaysia.
Ideas with a history
Follow the thinking.
Understanding DAOs
Governance, a treasury, and the decisions behind a real implementation.