Product Manager · Singapore
I build B2B platform products on deep infrastructure — from carrier-grade security to on-device AI.
Eight years across cybersecurity, telecom, and AI startups. I take infrastructure most people never see — DNS, carrier networks, on-device LLMs — and turn it into products customers can buy, deploy, and trust.
The route so far
One line, three chapters — and a resolver that comes back when you least expect it.
QiAnXin · enterprise security
Learned platform PM on firewall policy management — rebuild, national flagship, market story, redefinition.
China Telecom · carrier security
Built a secure DNS from zero, then re-platformed SecCat onto it — 120,000+ users across 31 provinces.
Estha · on-device AI
Product Lead. Shipped a bot library, ran channel GTM, and built an AI operating system for product work itself.
Case studies
Six stories, told honestly — decisions, trade-offs, results, and what remained unfinished. They read in order as one career. If you only have time for one:
Building a Secure DNS from Zero inside a Telecom Giant
An internal innovation mandate, a floating team of about four engineers, and twelve months to turn the internet's phone book into a security product.
SecCat: Rebuilding a Carrier Security Product on a Core I Once Built
I inherited a just-launched SMB security product running on a partner's DNS. Eighteen months later it ran on the resolver I had built years earlier — and customers never felt the heart transplant.
Shipping a Bot Library for On-Device AI
A one-time-purchase AI workspace can't win by out-chatting the cloud. I wrote the thesis, engineered the specs, and built the pipeline that turned it into a shelf of shipped products — solo.
The AI Operating System Behind My Product Work
At a startup where the product function was largely a one-person show — mine — hiring my way out wasn't an option. So I built the team out of software: skills, scripts, registries, and protocols that let one PM run like several.
Estha Insight: Conversation Analytics, Built as Research and as Product
My NTU capstone and a working MVP for Estha at once: a two-layer framework that reads chatbot conversations for confusion, quality and knowledge gaps — validated with a cross-model evaluation methodology that reports its own misses.
Four Years in Firewall Policy Management: From Rebuild to Redefinition
My first product line taught me platform PM the long way: rebuild the product, carry a national flagship deployment, write the market story myself, then redefine the product against nine competitors.
Say hello
I'm interested in platform products, deep infrastructure, and how AI changes the way product work gets done. Reach me at raesunqr@gmail.com, find me on LinkedIn, or grab my resume.