Trung Lai

Hanoi, Vietnam · +84 915 862 142 · t@trung.run · github.com/tonkinai · C1 English

I've spent 20+ years across both sides of the table — building products as a developer, then leading them as a PM, now founding them solo.

My background spans online games, adtech, e-commerce, and media. I've led cross-functional teams, launched monetization platforms, and founded multiple companies. Currently focused on AI-powered products and agent workflows.

Experience

Independent AI Builder & SaaS Founder 2024–Present
  • Founded dethianh.com — a profitable AI-powered English exam preparation platform for Vietnamese students in grades 9 and 12.
  • $35K ARR.
Product Manager — Dantri.com.vn 2020–2024
  • Rebuilt the legacy CMS into a modern publishing platform. 16 weeks, 10 engineers.
  • Delivered custom advertising solutions for premium advertisers with $100K+ budgets.
Product Manager — WebSoSanh.vn 2018–2020
  • Built a self-serve advertising platform that let merchants run campaigns directly.
  • Led data initiatives to improve product catalog quality for millions of items.
  • Improved search and comparison experience across the platform.
Founder — LuckyDraw.live 2017–Present
  • Built and launched a SaaS tool for online and offline lucky draw events.
  • $10K ARR.
Senior Assistant to CTO — Adayroi.com 2014–2017
  • Led product development across engineering, sales, logistics, and accounting.
  • Managed product planning and launches for a large-scale e-commerce platform during rapid growth.
Founder & CEO — InnoFlex 2010–2013
  • Built a game publishing company from scratch, grew to a team of 15.
  • Profitable at $300K peak annual revenue.
Developer — VDC-Net2E 2007–2009
  • Built and maintained websites and online payment systems for an online game publisher.
Freelance Web Developer 2003–2007
  • Delivered web development projects for various clients.

Skills

Product
Technical Product Management · 0→1 Development · Growth & Monetization · Cross-functional Leadership
Domains
AI & LLM Applications · AdTech · Marketplaces · Data Products · SaaS
Technical
Web Development · Analytics & Data Pipelines · AI Agent Workflows

Education

Applied Math / Information Systems — Hanoi University of Technology.