Product Manager · Singapore
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
Work down one rail, study down the other — newest at the top. The resolver still comes back when you least expect it.
NTU · MSc in Engineering Management
Managerial Analytics and AI track — a deliberate pause for systematic reflection. Dean’s Honours List.
Estha · AI applications
Product management across the whole surface — bot building, client solutions, market enablement, and the bridge between customers and dev, while the founder opened the doors.
China Telecom · carrier security
Built a secure DNS from zero, then re-platformed SecCat onto it — 120,000+ users across 31 provinces.
QiAnXin · enterprise security
Learned platform PM on firewall policy management — rebuild, national flagship, market story, redefinition.
University of Pittsburgh · MS in Information Science
Information-security concentration — where the security decade began.
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:
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.
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.
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 ran the pipeline that turned it into a shelf of shipped products.
The AI Operating System Behind My Product Work
Seven months of product management where nearly everything downstream of the founder's deals landed on one desk — mine. Hiring my way out wasn't an option, so I built my capacity out of software: skills, scripts, registries, and protocols.
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.