Preston Tan-Kang — product manager, builder and founder. Learn by doing. Prove it by shipping.
Who I am
Learn by doing.
Prove it by shipping.
Product management, digital marketing and founder-side building. Eight AI apps shipped in 2026, an SEO and AI-search agency, and a table tennis academy.
three pillars, one foundation
Product Management
Digital Product Manager at an app agency, client-facing across concurrent A$60k to A$200k+ builds: value propositions, roadmaps, prioritisation and expectation management, with two juniors and two interns mentored along the way. Before that: PM internships at Telstra and SQL VIEW, and consulting projects with EY.
Creative Building
Eight AI-powered apps designed, built and shipped in 2026: assistants with real-time voice, SEO tooling used on real clients, offline-first PWAs. Built solo with an AI-assisted workflow I designed, and a lessons log that keeps every project compounding.
Business Ownership
Co-founded a table tennis academy and took it from rough months to profitable in year one. Now running PTK Digital Labs, an SEO and automation agency where my own tools produce the client deliverables.
Selected work
8 shipped
and the rest(5)
What I run
Available now
Open for contract work, right now.
Part-time product management, website management and digital marketing: visibility at the top of the funnel through to automations that nurture leads to conversion. Melbourne, Australia · open to Singapore, where I have also worked.
Right now
Updated July 2026
A snapshot of what has my attention right now. I am running a self-set six-month sprint to learn as much as possible by building, before committing to the project or role that takes off.
what that looks like
Building
- Growing PTK Digital Labs, my SEO and AI-search agency, toward its first retainer clients.
- A marketing-carousel pipeline for Peak Agility (Claude Code drafts, Blotato publishes).
- Polishing the eight apps from the build sprint, and this site.
Learning
- AI-search optimisation (AIEO): how ChatGPT, Perplexity and AI Overviews decide what to cite.
- Full-stack and AI-agent fundamentals, deep in Claude Code.
- Finishing a Master’s in Digital Marketing.
Open to
- Contract product management (part-time), website and digital-marketing management.
- Building automations that move people from top of funnel to conversion.
- A good conversation with a founder or team who needs range across product, growth and ops.
Work history
Telstra and SQL VIEW in Singapore, then client-facing product management across concurrent A$60k to A$200k+ builds. Print-ready, one click.
The numbers
- 8AI apps shipped in 2026
- 2gold medals, men’s + women’s teams
- 9 yrscoaching table tennis
the whole list(9)
- ·Eight AI apps shipped in 2026
- ·Team Manager of the Year 2022
- ·Double gold, men’s + women’s teams
- ·Six intervarsity events organised
- ·80+ players at one event
- ·A$60k to A$200k+ deals supported
- ·PATT profitable in year one
- ·Nine years coaching table tennis
- ·80% interview-to-offer coaching rate
Voice assistant
Ask me anything, out loud.
A voice and text assistant trained on this site: my work history, how each app was built and what I am looking for next. It answers in my own words.
What people say
A client
“Our patient enquiries and referrals grew significantly in the first quarter after we engaged Preston to improve our digital footprint. Preston takes the time to understand our industry and offered his expertise. Expectations and fees are clearly communicated. It is a seamless experience working with Preston, and a priceless investment.”
Dr Joe Chen Psychiatry
SEO client, PTK Digital Labs
A colleague
“Preston is a highly reliable product manager who consistently articulates project requirements clearly and works seamlessly with the internal team. Seven months in, his performance has not dropped. I would recommend him to any team looking for strong, organised leadership.”
Ming Huay Ang
Worked with Preston directly
A manager
“He consistently impressed me with his enthusiasm, quick learning and strong communication. Preston grasps complex concepts fast and led customer interactions and projects on his own. He would be a valuable asset to any team.”
Internship manager
Product management internship, SQL VIEW (Singapore)