Hey, I'm Tan.
Engineering Leader · Builder · AI Enthusiast
I'm an engineering leader who likes being close to the work.
I spent 11 years at Upwork — started as the first engineer on monetization, grew to lead 45+ engineers, then recently moved back to hands-on architecture work. Why? AI is reshaping everything, and I wanted to be building in it, not just managing around it.
What I've Built
Ads Platform
$0 → $100MBuilt and scaled ads business in 3 years at Upwork
Pricing Infrastructure
$1B+Annual transaction volume through systems I architected
Team Building
3 → 45+Grew and led engineering organization
Subscriptions
76% YoYGrowth to 100K+ active subscribers
Virtual Currency
ConnectsToken ledger, ASC 606 accounting, prepaid & drawdown models
Promotions Platform
CurrentCredit system and billing orchestration for monetization
Enterprise Banking
IBMCards & CRM platforms at CIBC, IsBank, HSBC, Barclays