Personal site
Engineer at heart, CTO by day, tinkerer by night.
I’m Tharathorn Inphen. I’ve spent my career building software in Thailand, from trading platforms to retail apps, and I’m now a CTO. I think a lot about leading engineers, keeping systems up, and putting AI to work.
Ask me about
- Engineering leadership
- Org design
- Platform reliability
- Cloud cost
- AI in engineering teams
- Growing engineers into leaders
Don’t ask me to pick a restaurant.
Things I believe
Subject to change
Boring infrastructure is a feature. Launch day shouldn’t be an incident.
People stay for growth, not for snacks. Snacks help, though.
Ship small, ship often, sleep well.
Team structure shapes software. Design both with care.
What I think about
Three threads
Leading engineers
Org design, career ladders, and why people stay.
Systems that stay up
Reliability, cost, and quality, without the drama.
AI at work
Rolling out AI tools to real teams and what they change beyond the demo.
About
I started out writing financial software for brokers and dealers, and somewhere along the way found out the trickiest system to design is a team.
Since then, I’ve built e-commerce platforms, moved systems to the cloud, and led engineering teams behind apps people use every day. I’m based in Bangkok. I studied computer science at Chulalongkorn University and speak Thai, English, and YAML.
Day job
CTO. Technology strategy and engineering leadership.
Side quest
A presentation tool with far too many motion effects. A few of them are hiding on this page.
This site
An ongoing experiment in design and writing.
Career, abridged
git log --oneline
- 2026Chief Technology Officer Working in a new industry
- 2022VP of Engineering Built and grew engineering teams
- 2021Senior Software Architect Focused on infrastructure cost and reliability
- 2018Software Architect Moved core systems to the cloud
- 2010Senior Architect Designed software for brokers and dealers
- 2007BSc Computer Science · Chulalongkorn UniversityWhere it all started
Contact
Say hello.
A question, a lesson from your own work, or a different take? I’d like to hear it.